{"title":"Thoroughbred Labs","description":"\u003cp\u003eThoroughbred Labs is one of the third-party brands sold through Muscle Market alongside our own Free Muscle range. This collection lists every Thoroughbred Labs product we currently hold: seven single-compound capsule listings and two two-compound packs the manufacturer calls Research Systems. Every pack in our data contains 60 capsules. The range spans peptide-class compounds, a SARM, a growth hormone secretagogue, a PPAR-delta agonist and two newer metabolic research compounds, and each compound has its own collection page where brands are compared side by side.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is in the Thoroughbred Labs range\u003c\/h2\u003e\n\u003cp\u003eSingle-compound listings, each 60 capsules. Per-capsule strength is shown on the individual product page where the manufacturer states it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBPC-157\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-bpc157-peptide-capsule-ndash-thoroughbred-labs\"\u003eThoroughbred Labs BPC-157 Peptide Capsules\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/bpc-157\"\u003eBPC-157\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTB-500 (Thymosin Beta-4 fragment)\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-tb500-peptide-capsule-ndash-thoroughbred-labs\"\u003eThoroughbred Labs TB-500 Peptide Capsules\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/tb-500\"\u003eTB-500\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSLU-PP-332\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-slu\"\u003eThoroughbred Labs SLU-PP-332\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/slu-pp-332\"\u003eSLU-PP-332\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Amino-1MQ\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-5-amino-1mq\"\u003eThoroughbred Labs 5-Amino-1MQ\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/5-amino-1mq\"\u003e5-Amino-1MQ\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAD-140 (Testolone)\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-rad140\"\u003eThoroughbred Labs RAD-140\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/rad-140\"\u003eRAD-140\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMK-677 (Ibutamoren)\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-mk677\"\u003eThoroughbred Labs MK-677\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/mk-677\"\u003eMK-677\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCardarine (GW-501516)\u003c\/strong\u003e: \u003ca href=\"\/products\/thoroughbred-labs-gw501516\"\u003eThoroughbred Labs Cardarine GW-501516\u003c\/a\u003e. Compound page: \u003ca href=\"\/collections\/cardarine\"\u003eCardarine\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTwo-compound packs, each 60 capsules, listed as the manufacturer supplies them:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/thoroughbred-labs-research-system-bpc157-amp-tb500-capsule-ndash-thoroughbred-labs\"\u003eResearch System: BPC-157 and TB-500\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/thoroughbred-labs-research-system-slu-pp-332-amp-5-amino-1mq-ndash-thoroughbred-labs\"\u003eResearch System: SLU-PP-332 and 5-Amino-1MQ\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll multi-compound packs across brands are grouped under \u003ca href=\"\/collections\/market-bundles\"\u003eBundles and Stacks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow to compare listings\u003c\/h3\u003e\n\u003cp\u003eWhere a per-capsule strength is stated, multiply it by 60 for the total content of the pack and compare cost per milligram against the same compound from another brand. Where the strength is not stated on the listing, the pack cannot be compared on that basis, and the batch certificate becomes the more important document. The method is set out in our \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003eprice per milligram article\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eBatch testing and certificates of analysis\u003c\/h2\u003e\n\u003cp\u003eThoroughbred Labs is a third-party manufacturer, so its batches are not covered by the Janoshik Analytical programme that tests every Free Muscle batch. For Thoroughbred Labs products, a certificate of analysis is shown only where the manufacturer supplies one for the specific batch we hold. Where no certificate is available, the listing does not claim one. A batch certificate should carry the batch number, the tested identity of the compound and its measured purity; a generic PDF without a batch number does not tell you anything about the pack in your hand. Our \u003ca href=\"\/pages\/lab-tests\"\u003elab tests page\u003c\/a\u003e explains what is available for each brand.\u003c\/p\u003e\n\n\u003ch2\u003eLegal status in the UK\u003c\/h2\u003e\n\u003cp\u003eNone of these compounds is a licensed medicine, none has been assessed by the MHRA, and none is an authorised food supplement. They are supplied to adults aged 18 or over for laboratory research only and are not for human consumption. RAD-140, MK-677 and GW-501516 are named on the World Anti-Doping Agency prohibited list, TB-500 is listed as a thymosin beta-4 derivative, and BPC-157, SLU-PP-332 and 5-Amino-1MQ fall under the category for substances with no current approval for human use, so all are prohibited at all times. Our \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eSARMs research guide\u003c\/a\u003e gives background on the SARM class.\u003c\/p\u003e\n\n\u003ch2\u003eDelivery and returns\u003c\/h2\u003e\n\u003cp\u003eEvery order ships with free tracked UK delivery in plain packaging. Orders placed before 2pm Monday to Friday are processed the same working day. EU delivery takes 3 to 7 working days. Unopened items can be returned within 30 days. Full details are on our \u003ca href=\"\/pages\/shipping\"\u003eshipping page\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003eguarantee page\u003c\/a\u003e. Customers must be 18 or over.\u003c\/p\u003e\n\n\u003ch2\u003eRelated reading\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/bpc-157-what-research-shows\"\u003eBPC-157: what the research actually shows, and what it does not\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003eDo oral peptides actually work? The honest answer\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/mk-677-brands-compared\"\u003eMK-677 by brand: what actually differs when the molecule is the same\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003eHow to read a certificate of analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eCompound pages: \u003ca href=\"\/collections\/bpc-157\"\u003eBPC-157\u003c\/a\u003e, \u003ca href=\"\/collections\/tb-500\"\u003eTB-500\u003c\/a\u003e, \u003ca href=\"\/collections\/slu-pp-332\"\u003eSLU-PP-332\u003c\/a\u003e, \u003ca href=\"\/collections\/5-amino-1mq\"\u003e5-Amino-1MQ\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eAll products in this collection are sold for laboratory research use only. They have not been evaluated by the MHRA, EMA or FDA, are not medicines or food supplements, and are not for human consumption. Buyers must be 18 or over. Nothing on this page is medical, dosing or usage advice.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"thoroughbred-labs-5-amino-1mq","title":"Thoroughbred Labs 5-Amino-1MQ","description":"\u003cp\u003e\u003cstrong\u003eThoroughbred Labs 5-Amino-1MQ\u003c\/strong\u003e is supplied as 60 capsules per pack; the manufacturer does not state a strength per capsule on the label. It is supplied through the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range for laboratory research only, is not for human consumption, and is sold to adults aged 18 and over. Below: what the published research on 5-Amino-1MQ reports, what the label documents, how batch certificates are handled for Thoroughbred Labs products, and the questions most often asked about buying 5-Amino-1MQ in the UK.\u003c\/p\u003e\n\u003ch2\u003eAbout 5-Amino-1MQ\u003c\/h2\u003e\n\u003cp\u003e5-Amino-1MQ (5-amino-1-methylquinolinium) is a small-molecule inhibitor of nicotinamide N-methyltransferase (NNMT), an enzyme expressed in fat tissue and liver that methylates nicotinamide and in doing so influences the cellular availability of NAD+ precursors and S-adenosylmethionine. It was developed by a group at the University of Texas Medical Branch as a membrane-permeable, selective NNMT inhibitor. It is not a SARM and not a peptide.\u003c\/p\u003e\n\u003cp\u003eInterest in the enzyme came first. A 2014 Nature paper found that NNMT expression was raised in the white fat and liver of obese and diabetic mice, and that lowering NNMT in those tissues with an antisense oligonucleotide protected mice against diet-induced obesity, with higher energy expenditure and higher fat-tissue levels of S-adenosylmethionine and NAD+ (Kraus et al., 2014). That work used a genetic tool, not a drug, but it made NNMT a target, and small-molecule inhibitors such as 5-Amino-1MQ followed.\u003c\/p\u003e\n\u003cp\u003eIn a 2018 study, diet-induced obese mice given an NNMT inhibitor from this series showed lower body weight and white fat mass and lower plasma cholesterol than vehicle-treated animals over the treatment period (Neelakantan et al., 2018). A 2019 study in aged mice reported that the inhibitor increased muscle stem cell activity and larger muscle fibres after an experimental injury (Neelakantan et al., 2019). Both studies used subcutaneous injection in mice over a few weeks, the same laboratory produced both, and neither was designed to assess long-term toxicity. A 2021 study from a collaborating team developed an assay for the compound in rat plasma and urine and measured its behaviour in rats after intravenous and oral administration (Awosemo et al., 2021). There are no human trials, no human pharmacokinetic data and no safety data in people, and the compound has never been approved as a medicine. It is frequently sold alongside claims that nothing published supports. Nothing above is a claim about this product.\u003c\/p\u003e\n\u003cp\u003eIn chemical terms, PubChem (CID 950107) records 5-amino-1-methylquinolinium under CAS number 685079-15-6, with the formula C10H11N2+ and a mass of 159.21 for the ion. The plus sign matters: the ring nitrogen carries a permanent positive charge, so the substance cannot exist on its own as a neutral powder and is always supplied as a salt paired with a negative counter-ion. Its systematic name is 1-methylquinolin-1-ium-5-amine.\u003c\/p\u003e\n\u003ch2\u003eThis listing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eCompound: 5-Amino-1MQ\u003c\/li\u003e\n\u003cli\u003eForm: Capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength: the manufacturer does not state the amount per capsule on the label, so we do not list one\u003c\/li\u003e\n\u003cli\u003eBatch certificate of analysis: shown where Thoroughbred Labs supplies one for the batch we hold\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e5-Amino-1MQ in the UK: buying, legal status and what to check\u003c\/h2\u003e\n\u003cp\u003eSearches such as \"5-Amino-1MQ UK\" and \"5 amino 1mq UK buy\" ask whether a UK shop may sell it and how to judge a listing. 5-Amino-1MQ is not a licensed medicine in the UK, has not been assessed by the MHRA, and is not an authorised food supplement. It is not a controlled drug. It is sold for laboratory research to adults aged 18 and over and is not for human consumption. Whether or not it is named on the WADA Prohibited List, a substance with no current approval for human therapeutic use falls under section S0 (non-approved substances) and is prohibited at all times in sport. Anyone subject to anti-doping rules should consult the current list.\u003c\/p\u003e\n\u003cp\u003eA research listing that publishes instructions for use or promised results contradicts the terms it sells under. What it should publish is information a researcher can check against the pack and a laboratory report. The table sets out those checks for 5-Amino-1MQ and how this listing answers each.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWhat to look for\u003c\/th\u003e\n\u003cth\u003eWhy it matters for 5-Amino-1MQ\u003c\/th\u003e\n\u003cth\u003eThis listing\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrength per capsule\u003c\/td\u003e\n\u003ctd\u003eWithout it, total content per pack cannot be calculated\u003c\/td\u003e\n\u003ctd\u003eNot stated by Thoroughbred Labs, and we do not invent a figure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalt form\u003c\/td\u003e\n\u003ctd\u003eThe compound is a charged ion, so the counter-ion changes the weight of each milligram of powder\u003c\/td\u003e\n\u003ctd\u003eNot stated on the label; check any certificate supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBatch number and matching certificate\u003c\/td\u003e\n\u003ctd\u003eConnects an analysis to the stock actually shipped\u003c\/td\u003e\n\u003ctd\u003eCertificate shown only where the manufacturer supplies one for the batch we hold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdentifiable UK seller\u003c\/td\u003e\n\u003ctd\u003eGives an age check, a contact and a returns route\u003c\/td\u003e\n\u003ctd\u003eFreeMuscle LTD, Scunthorpe; 18+ only; 30-day returns on unopened items\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eTraceable, discreet transit\u003c\/td\u003e\n\u003ctd\u003eFree tracked UK delivery in plain packaging; EU delivery 3-7 working days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eOrders placed before 2pm Monday to Friday are processed the same working day. The full terms are on our \u003ca href=\"\/pages\/shipping\"\u003eshipping\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003eguarantee\u003c\/a\u003e pages, and the \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e sets out the same tests for any shop. Our \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eresearch guide\u003c\/a\u003e covers the wider legal picture for compounds sold on this basis.\u003c\/p\u003e\n\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\n\u003cp\u003eTesting works differently here than on our own label. Free Muscle-brand batches are each assayed by Janoshik Analytical, an independent laboratory, and the certificate is emailed on request. Thoroughbred Labs is a third-party Muscle Market brand, so for this 5-Amino-1MQ we can show a certificate only if Thoroughbred Labs supplies one for the exact batch in stock. We do not pass off an undated or batchless PDF as a batch certificate. You can \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e to ask whether a certificate is held for the current batch. Where a certificate exists, the charged structure of 5-Amino-1MQ makes some fields more telling than usual.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity\u003c\/strong\u003e: HPLC compares the sample with a reference standard by retention time; LC-MS adds a mass. Because the molecule is already charged, it appears in positive-mode mass spectrometry at about m\/z 159 without needing to pick up a proton, and the published rat assay monitored a transition from m\/z 159.1 to a fragment at m\/z 90 (Awosemo et al., 2021). A reported mass far from 159 points to a different substance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity\u003c\/strong\u003e: the percentage of detected material that is 5-Amino-1MQ, usually from HPLC peak areas. It describes the powder, not the quantity in each capsule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt form and content\u003c\/strong\u003e: a content figure should say whether it is expressed as the salt or as the ion alone. The same weighed powder gives a smaller number when only the 159.21 ion is counted, so two honest certificates can report different milligrams for identical capsules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch number\u003c\/strong\u003e: must match the number printed on the pack you hold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest date and laboratory\u003c\/strong\u003e: identify when and by whom the analysis was done.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMissing fields should be read at face value. Since the label on this product gives no strength per capsule, a certificate with purity but no content figure confirms what the molecule is while leaving the amount per capsule unknown. A certificate without a batch number cannot be tied to this stock. If Thoroughbred Labs has supplied nothing for the current batch, this listing makes no analytical claim. Our \u003ca href=\"\/pages\/lab-tests\"\u003elab tests page\u003c\/a\u003e and the guide on \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a certificate of analysis\u003c\/a\u003e go further.\u003c\/p\u003e\n\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\n\u003cp\u003eSearch terms such as \"5 amino 1mq capsules UK\", \"5 amino 1mq tablets UK\", \"5 amino 1mq oral\" and \"5-amino-1mq subcutaneous\" show that the compound circulates as capsules, tablets, loose powder and injectable solutions. The published record for each route is thin and should be read carefully.\u003c\/p\u003e\n\u003cp\u003eThe two mouse efficacy papers gave the compound by subcutaneous injection, so they say nothing direct about capsules. The only published oral data come from the 2021 rat study, which found the compound in plasma after oral administration and reported an oral bioavailability of about 38 per cent in rats, meaning a sizeable fraction of the orally administered amount reached the circulation in those animals (Awosemo et al., 2021). Rat figures cannot be converted into human figures, and no study has measured oral absorption in people.\u003c\/p\u003e\n\u003cp\u003eBecause 5-Amino-1MQ is a small molecule rather than a chain of amino acids, it is not broken down by stomach and gut proteases in the way oral peptides are, which is why the \"peptide\" label sometimes attached to it in search results is misleading. Its permanent charge is a different consideration, since charged molecules often cross gut membranes less readily than neutral ones.\u003c\/p\u003e\n\u003cp\u003eOtherwise the formats differ in measurement. A capsule holds a weighed blend of active powder and filler, so consistency depends on even mixing; a solution depends on the compound staying dissolved and intact. With no stated strength on this label, only a content assay could show what each capsule holds. None of this is a claim about effect.\u003c\/p\u003e\n\u003ch2\u003e5-Amino-1MQ compared with SLU-PP-332\u003c\/h2\u003e\n\u003cp\u003eThe compound most often searched alongside 5-Amino-1MQ is \u003ca href=\"\/collections\/slu-pp-332\"\u003eSLU-PP-332\u003c\/a\u003e, and Thoroughbred Labs also lists the two in a single research pack. They are grouped together because both are recent small molecules discussed in metabolic research, but they act at different points in the cell and have different histories.\u003c\/p\u003e\n\u003cp\u003e5-Amino-1MQ blocks an enzyme. By inhibiting NNMT it reduces the methylation of nicotinamide, which in animal and cell work was linked to changes in NAD+ and S-adenosylmethionine levels. SLU-PP-332 activates receptors: it is a pan-agonist of the oestrogen-related receptors ERR alpha, beta and gamma, nuclear receptors that switch on genes for mitochondrial energy production. One works by taking an enzyme out of play, the other by turning on a transcription programme. Neither acts at the androgen receptor, and neither is a peptide or a hormone.\u003c\/p\u003e\n\u003cp\u003eThe evidence bases are alike in shape. The published mouse studies of SLU-PP-332, looking at endurance and metabolic measures, are recent and come mainly from the group that developed it as an ERR agonist, just as the 5-Amino-1MQ work comes mainly from the group that developed that compound. Neither compound has been given to people in a published study.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePoint of comparison\u003c\/th\u003e\n\u003cth\u003e5-Amino-1MQ\u003c\/th\u003e\n\u003cth\u003eSLU-PP-332\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of action\u003c\/td\u003e\n\u003ctd\u003eEnzyme inhibitor (NNMT)\u003c\/td\u003e\n\u003ctd\u003eReceptor agonist (ERR alpha, beta, gamma)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eQuinolinium cation, supplied as a salt\u003c\/td\u003e\n\u003ctd\u003eNeutral acylhydrazone, C18H14N2O2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnimal evidence\u003c\/td\u003e\n\u003ctd\u003eMouse studies from one laboratory\u003c\/td\u003e\n\u003ctd\u003eRecent mouse studies, mainly from one laboratory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOral data\u003c\/td\u003e\n\u003ctd\u003eRat pharmacokinetics only\u003c\/td\u003e\n\u003ctd\u003eNone published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman data\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA position\u003c\/td\u003e\n\u003ctd\u003eProhibited at all times under S0 (non-approved substances)\u003c\/td\u003e\n\u003ctd\u003eProhibited at all times under S0 (non-approved substances)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUK status\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis comparison is pharmacological and regulatory only. Nothing here suggests that the two compounds act together or should be used together, and the \u003ca href=\"\/blogs\/news\/slu-pp-332-and-5-amino-1mq-research-guide\"\u003eSLU-PP-332 and 5-Amino-1MQ research guide\u003c\/a\u003e covers each in more depth.\u003c\/p\u003e\n\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\n\u003cp\u003eFor anyone bound by an anti-doping code, 5-Amino-1MQ is prohibited at all times. Section S0 of the WADA Prohibited List covers any pharmacological substance not approved for human therapeutic use, and this compound has never been approved anywhere, so it is caught whether or not it is named. A compound missing from the named examples is therefore not permitted.\u003c\/p\u003e\n\u003cp\u003eOn detection, the published evidence is limited but clear in one respect. The 2021 rat study validated a liquid chromatography tandem mass spectrometry method that quantified 5-Amino-1MQ in both plasma and urine, the two sample types used in sport testing (Awosemo et al., 2021). What is missing is any excretion study in people, so there is no established detection window in human urine or blood. Any figure quoted online for how long it remains detectable is unsupported. The accurate position is that it is detectable in principle and the window has not been established.\u003c\/p\u003e\n\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\n\u003cp\u003eWith no published stability data for these capsules, storage guidance rests on the compound's chemistry and laboratory practice. The amino group on the aromatic ring is the kind of structure that can slowly oxidise and discolour with air and light, and organic salts in powder form often take up moisture from humid air, which can cause clumping and soften gelatin or plant-based capsule shells. Heat speeds both processes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeep the capsules sealed in the original container, closing it promptly after opening and leaving any desiccant sachet inside.\u003c\/li\u003e\n\u003cli\u003eStore at room temperature or below, away from radiators, windowsills and direct sunlight.\u003c\/li\u003e\n\u003cli\u003eAvoid damp rooms such as bathrooms and kitchens.\u003c\/li\u003e\n\u003cli\u003eKeep the pack and its label together, since the batch number is the link to any certificate of analysis.\u003c\/li\u003e\n\u003cli\u003eKeep out of reach of children and separate from food and drink.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCapsules that have stuck together, changed colour or developed an unusual smell should be set aside and not used for research. Standard laboratory rules on gloves, labelling and disposal of unwanted material apply.\u003c\/p\u003e\n\u003ch2\u003eGlossary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNNMT (nicotinamide N-methyltransferase)\u003c\/strong\u003e: the enzyme 5-Amino-1MQ inhibits; it transfers a methyl group to nicotinamide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNicotinamide\u003c\/strong\u003e: a form of vitamin B3 and a precursor of NAD+.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNAD+\u003c\/strong\u003e: nicotinamide adenine dinucleotide, a coenzyme central to energy metabolism in cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS-adenosylmethionine (SAM)\u003c\/strong\u003e: the methyl donor NNMT uses; it also supplies methyl groups to DNA and histones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuinolinium\u003c\/strong\u003e: a quinoline ring with a positively charged nitrogen, the core of 5-Amino-1MQ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounter-ion\u003c\/strong\u003e: the negatively charged partner that turns a charged molecule into a stable salt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOral bioavailability\u003c\/strong\u003e: the fraction of an amount given by mouth that reaches the bloodstream unchanged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmacokinetics\u003c\/strong\u003e: the study of how a substance is absorbed, distributed, broken down and eliminated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC-MS\/MS\u003c\/strong\u003e: liquid chromatography with tandem mass spectrometry, used to identify and measure a compound by mass and fragments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection S0\u003c\/strong\u003e: the WADA category covering substances with no current approval for human therapeutic use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertificate of analysis (COA)\u003c\/strong\u003e: a laboratory report of identity, purity and content for a named batch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/5-amino-1mq\"\u003eAll brands of 5-Amino-1MQ we stock, compared\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eAll Thoroughbred Labs products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/thoroughbred-labs-slu\"\u003eThoroughbred Labs SLU-PP-332\u003c\/a\u003e and the \u003ca href=\"\/products\/thoroughbred-labs-research-system-slu-pp-332-amp-5-amino-1mq-ndash-thoroughbred-labs\"\u003eThoroughbred Labs research pack listing both compounds\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/weight-loss\"\u003eMetabolic research compounds\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/lab-tests\"\u003eBatch testing and certificates of analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis product is supplied for laboratory research use only. It has not been evaluated by the MHRA, EMA or FDA. It is not a medicine, not a food supplement and not for human consumption. Sold only to adults aged 18 and over. Nothing on this page is medical, dosing or usage advice, and descriptions of published studies are not claims about this product.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eKraus D, et al. Nicotinamide N-methyltransferase knockdown protects against diet-induced obesity. Nature. 2014;508(7495):258-262. PMID: 24717514.\u003c\/li\u003e\n\u003cli\u003eNeelakantan H, et al. Selective and membrane-permeable small molecule inhibitors of nicotinamide N-methyltransferase reverse high fat diet-induced obesity in mice. Biochem Pharmacol. 2018;147:141-152. PMID: 29155147.\u003c\/li\u003e\n\u003cli\u003eNeelakantan H, et al. Small molecule nicotinamide N-methyltransferase inhibitor activates senescent muscle stem cells and improves regenerative capacity of aged skeletal muscle. Biochem Pharmacol. 2019;163:481-492. PMID: 30753815.\u003c\/li\u003e\n\u003cli\u003eAwosemo O, et al. Development \u0026amp; validation of LC-MS\/MS assay for 5-amino-1-methyl quinolinium in rat plasma: Application to pharmacokinetic and oral bioavailability studies. J Pharm Biomed Anal. 2021;204:114255. PMID: 34304009.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980433122,"sku":null,"price":98.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/AMINO.png?v=1789931423"},{"product_id":"thoroughbred-labs-bpc157-peptide-capsule-ndash-thoroughbred-labs","title":"Thoroughbred Labs BPC-157 Peptide Capsules","description":"\u003cp\u003eThoroughbred Labs BPC-157 Peptide Capsules is a 60-capsule pack of BPC-157, a synthetic 15-amino-acid peptide, made by Thoroughbred Labs and stocked by Free Muscle in the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range. No per-capsule peptide content is stated in the manufacturer details we hold for this pack, so the strength is listed as not stated. The pack is supplied to adults aged 18 and over for laboratory research only. This page summarises the research on BPC-157, lists what we can confirm about the pack, sets out the UK legal position and anti-doping rules, and explains how certificates of analysis are handled for Thoroughbred Labs products.\u003c\/p\u003e\n\n\u003ch2\u003eAbout BPC-157\u003c\/h2\u003e\n\n\u003cp\u003eBPC-157 is a pentadecapeptide, a chain of 15 amino acids, that was isolated as a fragment of a gastric protein and then produced synthetically. The name stands for Body Protection Compound 157, and chemical databases also list it as BPC157, Bepecin and PL-10. As a peptide it is neither a SARM nor a steroid, and no regulator has approved it as a medicine.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence\u003c\/strong\u003e: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val (GEPPPGKPADDAGLV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number\u003c\/strong\u003e: 137525-51-0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula\u003c\/strong\u003e: C62H98N16O22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight\u003c\/strong\u003e: 1419.5 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInChIKey\u003c\/strong\u003e: HEEWEZGQMLZMFE-RKGINYAYSA-N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePubChem CID\u003c\/strong\u003e: 9941957\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat the published research reports\u003c\/h3\u003e\n\n\u003cp\u003eIn a 2011 laboratory study from Chang Gung University in Taiwan, using explants and fibroblasts taken from rat Achilles tendon, BPC-157 accelerated the outgrowth of fibroblasts from the explants, increased cell survival under oxidative stress and increased cell migration in culture, without directly changing cell proliferation. A 2016 review by the University of Zagreb group that first described the peptide collected its own rodent findings across gut, liver and central nervous system models, proposing links to the serotonin and dopamine systems and to several cell-signalling pathways.\u003c\/p\u003e\n\n\u003cp\u003eThe broadest overview so far is a 2025 systematic review from Case Western Reserve University covering the literature to June 2024. Of 544 records, 36 studies qualified: 35 preclinical and one clinical report, a retrospective series of 12 patients with knee pain given injections into the joint, with no control group. All sat at evidence level IV or V, the lowest tiers. The reviewers found no clinical safety data, summarised the half-life as under 30 minutes with metabolism in the liver and clearance by the kidneys, and listed unregulated manufacturing and contamination among the possible sources of harm.\u003c\/p\u003e\n\n\u003cp\u003eThese are laboratory and animal results. No human randomised controlled trial of BPC-157 has been published in a peer-reviewed journal, no human safety database exists, and most of the published animal work comes from a single research group. The preclinical work described here is not a claim about this product. A longer account is in \u003ca href=\"\/blogs\/news\/bpc-157-what-research-shows\"\u003eBPC-157: what the research actually shows\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eThis listing\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCompound: BPC-157\u003c\/li\u003e\n\u003cli\u003eBrand: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eForm: capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength per capsule: not stated in the manufacturer details we hold\u003c\/li\u003e\n\u003cli\u003eTotal per pack: cannot be calculated without a stated strength\u003c\/li\u003e\n\u003cli\u003eBatch certificate: shown where Thoroughbred Labs supplies one for the batch we hold\u003c\/li\u003e\n\u003cli\u003eIntended use: laboratory research only, not for human consumption\u003c\/li\u003e\n\u003cli\u003eSold to adults aged 18 and over\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWith no per-capsule content stated, this pack cannot be compared on milligrams with brands that do. A batch certificate, if available, may give a measured content. Of the BPC-157 brands we stock, the \u003ca href=\"\/products\/biolab-bpc-157-hcl-200-mcg-60-caps\"\u003eBioLab listing\u003c\/a\u003e is the one that states a figure, 200 mcg per capsule. See \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003ehow to compare by milligram\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eBPC-157 in the UK: buying, legal status and what to check\u003c\/h2\u003e\n\n\u003ch3\u003eCan BPC-157 be sold in the UK?\u003c\/h3\u003e\n\n\u003cp\u003eOnly as a research material. BPC-157 is not a licensed medicine in the UK: it has no MHRA marketing authorisation, is not an authorised food supplement, and cannot lawfully be sold for human consumption. It is not a controlled drug under the Misuse of Drugs Act 1971; what UK law regulates instead is presentation, since a product sold to treat or prevent disease is treated as a medicine and one sold to be eaten must satisfy food law. With no licensed BPC-157 product anywhere, the NHS does not prescribe it and no pharmacy can dispense it. Free Muscle supplies it to adults aged 18 or over for laboratory research only. It is banned in sport under WADA section S0, and buyers are responsible for the rules that apply to them, including any anti-doping code. The same framework covers our other \u003ca href=\"\/collections\/peptides\"\u003eresearch peptides\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat to check before buying from any UK seller\u003c\/h3\u003e\n\n\u003cp\u003eThe manufacturing and contamination concerns raised in the 2025 review translate into checks that can all be made before ordering:\u003c\/p\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeller and maker\u003c\/strong\u003e: a registered UK company you can contact, and a named manufacturer on the label.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch\u003c\/strong\u003e: a lot number on the pack and a certificate of analysis carrying the same number, from a named laboratory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent\u003c\/strong\u003e: a stated amount per capsule, so the pack can be compared and checked against the certificate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerms\u003c\/strong\u003e: sale limited to adults, a laboratory-use label, and no instructions or promised outcomes anywhere on the listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivery\u003c\/strong\u003e: tracked, in plain packaging, with a written returns policy.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eHow this Thoroughbred Labs listing measures up\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCheck\u003c\/th\u003e\n\u003cth\u003ePosition for this pack\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeller and maker\u003c\/td\u003e\n\u003ctd\u003eFreeMuscle LTD, a UK company based in Scunthorpe; manufactured by Thoroughbred Labs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBatch certificate\u003c\/td\u003e\n\u003ctd\u003eShown only where Thoroughbred Labs supplies one for the batch we hold; ask us before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContent\u003c\/td\u003e\n\u003ctd\u003eNot met: no per-capsule content is stated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerms\u003c\/td\u003e\n\u003ctd\u003eLaboratory research only, adults 18 and over, no directions for use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eFree tracked UK delivery in plain packaging; orders before 2pm Monday to Friday processed the same working day; EU delivery 3-7 working days; unopened items returnable within 30 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThe two points that depend on the manufacturer, the certificate and the stated content, are the ones to settle first. Reviews and forum threads cannot settle them, because they record buyers' impressions rather than what a given lot contained. Our \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e expands each point.\u003c\/p\u003e\n\n\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\n\n\u003cp\u003eBPC-157 is sold as capsules, compressed tablets, freeze-dried powder in vials and pre-mixed solutions. The molecule is the same in each; the study routes and the handling differ.\u003c\/p\u003e\n\n\u003cp\u003eMany rodent experiments injected the peptide into the abdominal cavity, and a number of others gave it intragastrically, by tube into the stomach. No pharmacokinetic study in people has been published, so there is no figure for how much intact peptide, if any, reaches the blood after a capsule is swallowed. The obstacle is general to peptides: pepsin and the intestinal proteases exist to cut peptide bonds, and an unmodified 15-residue chain is a typical substrate. The originating group describes BPC-157 as stable in human gastric juice, but surviving acid is not the same as crossing the gut wall.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapsules and tablets\u003c\/strong\u003e: dry powder, in practice blended with fillers because microgram amounts of peptide cannot be filled or pressed alone. Content should be uniform across a batch, but only a test on finished units shows whether it is, and this label gives no target figure to test against.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreeze-dried vials\u003c\/strong\u003e: dry and comparatively stable until reconstituted; in solution, hydrolysis and microbial growth begin, and the amount in any measured volume depends on how accurately the vial was made up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-mixed liquids\u003c\/strong\u003e: carry those drawbacks from the day of manufacture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNone of this implies that any format produces an effect in people. The routes are compared in \u003ca href=\"\/blogs\/news\/bpc-157-capsules-vs-injection-what-studies-used\"\u003eBPC-157 capsules vs injection: what the studies used\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003edo oral peptides actually work\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eBPC-157 compared with TB-500\u003c\/h2\u003e\n\n\u003cp\u003eTB-500 is the peptide most often searched with BPC-157, and Thoroughbred Labs makes both, but the two are unrelated molecules from different research traditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStructure.\u003c\/strong\u003e BPC-157 is a 15-residue peptide of 1419.5 g\/mol based on a gastric protein sequence. TB-500 is the market name for synthetic peptides based on thymosin beta-4, a 43-amino-acid protein present in most human cells best known for binding monomeric actin, a building block of the cell's internal scaffolding. Full thymosin beta-4 weighs about 4,963 g\/mol, three and a half times as much. Products sold as TB-500 may contain the full sequence or a shorter fragment, and the Thoroughbred Labs TB-500 listing does not state which.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEvidence.\u003c\/strong\u003e For BPC-157 the 2025 review counted 35 preclinical studies and one uncontrolled clinical series. The full-length thymosin beta-4 protein went further, into clinical programmes for wounds, the cornea and cardiac repair, including a placebo-controlled intravenous tolerability study in healthy volunteers. Those studies used the full protein by injection or local application, not a capsule, and none produced an approved medicine. No trial has compared the two peptides, so neither can be ranked above the other. The thymosin beta-4 studies are referenced on our \u003ca href=\"\/products\/thoroughbred-labs-tb500-peptide-capsule-ndash-thoroughbred-labs\"\u003eThoroughbred Labs TB-500\u003c\/a\u003e page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRegulation and sport.\u003c\/strong\u003e Neither is a licensed medicine in the UK; both are sold only as research materials. WADA reaches the same result by different routes: BPC-157 falls under S0 because no health authority has approved it, while thymosin beta-4 and its derivatives, TB-500 named among them, are listed under S2 with peptide hormones and growth factors. Both are prohibited at all times.\u003c\/p\u003e\n\n\u003cp\u003eThoroughbred Labs also sells a \u003ca href=\"\/products\/thoroughbred-labs-research-system-bpc157-amp-tb500-capsule-ndash-thoroughbred-labs\"\u003eBPC-157 and TB-500 research system\u003c\/a\u003e containing both peptides; we publish no guidance on combining them. All TB-500 brands we hold are in the \u003ca href=\"\/collections\/tb-500\"\u003eTB-500 collection\u003c\/a\u003e, with background in the \u003ca href=\"\/blogs\/news\/tb-500-thymosin-beta-4-research-guide\"\u003eTB-500 research guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\n\n\u003cp\u003eAny certificate of analysis for this product comes from Thoroughbred Labs, not from Free Muscle. Our policy for third-party brands is simple: we show a COA where the manufacturer supplies one for the batch we hold, and not otherwise, and we never present a generic PDF as a batch certificate. Contact us to ask what documentation exists for the current batch before ordering. Free Muscle-brand compounds are batch-tested by the independent laboratory Janoshik Analytical; Thoroughbred Labs products are not in that programme. Where a Thoroughbred Labs certificate exists, read it field by field:\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eField\u003c\/th\u003e\n\u003cth\u003eWhat it shows\u003c\/th\u003e\n\u003cth\u003eIf it is missing\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdentity (HPLC or LC-MS)\u003c\/td\u003e\n\u003ctd\u003eHPLC: a peak at the retention time of a BPC-157 reference standard. LC-MS adds mass: about 1418.7 Da for C62H98N16O22, usually seen near m\/z 710.4 (two charges) or 1419.7 (one).\u003c\/td\u003e\n\u003ctd\u003eNothing shows that the main peak is BPC-157.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePurity (%)\u003c\/td\u003e\n\u003ctd\u003eThe share of the chromatogram taken by the BPC-157 peak; the rest is typically truncated sequences from synthesis.\u003c\/td\u003e\n\u003ctd\u003eNo measure of how clean the peptide is. Purity never states quantity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContent per capsule\u003c\/td\u003e\n\u003ctd\u003eMeasured peptide per capsule, ideally stated as net peptide rather than total powder.\u003c\/td\u003e\n\u003ctd\u003eThe strength of this pack stays unknown.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample tested\u003c\/td\u003e\n\u003ctd\u003eFinished capsules or raw powder before filling.\u003c\/td\u003e\n\u003ctd\u003eA raw-powder result says nothing about the capsule fill.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBatch number, laboratory, test date\u003c\/td\u003e\n\u003ctd\u003eWhich lot, who tested it and when.\u003c\/td\u003e\n\u003ctd\u003eThe report cannot be tied to your pack or checked.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eFor this product the content line matters most, as the only route to the figure the listing omits. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e with the lot number on your pack to ask what exists for current stock. More at \u003ca href=\"\/pages\/lab-tests\"\u003elab tests\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a COA\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\n\n\u003cp\u003eBPC-157 is prohibited under section S0 (non-approved substances) of the WADA Prohibited List, which captures any pharmacological substance not covered elsewhere on the List and without current approval by a government health authority for human therapeutic use. It applies in and out of competition in every sport bound by the World Anti-Doping Code, including testing by UK Anti-Doping. Under strict liability an athlete answers for any prohibited substance in their sample, whatever the label said.\u003c\/p\u003e\n\n\u003cp\u003eIn 2023 the Shanghai Anti-Doping Laboratory used BPC-157 labelled with carbon-13 and nitrogen-15 to map its breakdown in vitro, finding nine metabolites: eight formed by cleavage of amide bonds and one by a previously undescribed pathway. The team then validated a method for BPC-157 and its five main metabolites in human urine with detection limits of 0.01 to 0.11 ng\/mL. No study has published how long after exposure BPC-157 or its metabolites remain detectable in a person, so the accurate position is: detectable, window not established.\u003c\/p\u003e\n\n\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\n\n\u003cp\u003eNo stability study of BPC-157 capsules has been published, so any expiry date on the pack is the limit to work to. The residues most prone to oxidation, methionine, cysteine and tryptophan, are absent from the BPC-157 sequence, so for dry powder the main threats are moisture, heat and light: water lets peptide bonds hydrolyse and powder clump, warmth speeds degradation, and capsule shells soften in damp air.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eKeep the container tightly closed somewhere cool, dry and dark, away from radiators, sunny windowsills and bathrooms.\u003c\/li\u003e\n\u003cli\u003eIf refrigerated, let the pack reach room temperature before opening so condensation does not form, and leave any desiccant inside.\u003c\/li\u003e\n\u003cli\u003eKeep capsules in the original container with its lot number, and note the date the seal was first broken. Unopened packs can be returned within 30 days.\u003c\/li\u003e\n\u003cli\u003eHandle opened capsules with gloves, away from food and drink, out of reach of children and animals, and dispose of waste as chemical waste.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGlossary\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreclinical study\u003c\/strong\u003e: research in cells or animals rather than people.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystematic review\u003c\/strong\u003e: a literature review with a stated search method and fixed inclusion rules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetrospective case series\u003c\/strong\u003e: a look back at patient records without a comparison group, unable to show cause and effect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHalf-life\u003c\/strong\u003e: the time for a substance's blood concentration to fall by half.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtease\u003c\/strong\u003e: an enzyme that cuts peptide bonds; pepsin and trypsin are digestive examples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcipient\u003c\/strong\u003e: any capsule or tablet ingredient other than the compound, such as a filler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonoisotopic mass\u003c\/strong\u003e: a molecule's mass from the most abundant isotope of each element, the value mass spectrometry matches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit of detection\u003c\/strong\u003e: the lowest concentration at which a test reliably reports the analyte as present.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict liability\u003c\/strong\u003e: the anti-doping rule that athletes are responsible for any prohibited substance in their sample.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarketing authorisation\u003c\/strong\u003e: the MHRA licence required before a medicine can be sold in the UK.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/bpc-157\"\u003eAll brands of BPC-157\u003c\/a\u003e, compared on strength, pack size and batch testing\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eAll Thoroughbred Labs products\u003c\/a\u003e stocked at Free Muscle\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eThis product is supplied for laboratory research use only. It is not a medicine, has not been evaluated by the MHRA, EMA or FDA, and is not for human consumption. Sold to adults aged 18 and over. Nothing on this page is medical, dosing or usage advice.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\n\u003col\u003e\n\u003cli\u003eChang CH, et al. The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration. J Appl Physiol (1985). 2011;110(3):774-80. PMID: 21030672.\u003c\/li\u003e\n\u003cli\u003eSikiric P, et al. Brain-gut Axis and Pentadecapeptide BPC 157: Theoretical and Practical Implications. Curr Neuropharmacol. 2016;14(8):857-865. PMID: 27138887.\u003c\/li\u003e\n\u003cli\u003eVasireddi N, et al. Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review. HSS J. 2025;21(4):485-495. PMID: 40756949.\u003c\/li\u003e\n\u003cli\u003eTian T, et al. Stable Isotope Labeling-Based Nontargeted Strategy for Characterization of the In Vitro Metabolic Profile of a Novel Doping BPC-157 in Doping Control by UHPLC-HRMS. Molecules. 2023;28(21):7345. PMID: 37959764.\u003c\/li\u003e\n\u003c\/ol\u003e\n","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980465890,"sku":null,"price":39.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/BPC_f38b25f2-6121-4d0f-9b3d-b521bec69cff.png?v=1789931424"},{"product_id":"thoroughbred-labs-gw501516","title":"Thoroughbred Labs Cardarine GW-501516","description":"\u003cp\u003e\u003cstrong\u003eThoroughbred Labs Cardarine GW-501516\u003c\/strong\u003e is a Thoroughbred Labs listing of Cardarine, supplied as 60 capsules per pack; the manufacturer does not state a strength per capsule on the label. It is supplied through the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range for laboratory research only, is not for human consumption, and is sold to adults aged 18 and over. This page sets out what the published research on Cardarine reports, what the label documents, where the compound stands in UK law and in sport, and how batch certificates are handled for Thoroughbred Labs products.\u003c\/p\u003e\n\u003ch2\u003eAbout Cardarine\u003c\/h2\u003e\n\u003cp\u003eCardarine, also written GW-501516, GW501516, GW1516 or endurobol, is a synthetic agonist of PPAR-delta, a nuclear receptor that regulates genes involved in fatty acid oxidation in skeletal muscle. It was developed by GlaxoSmithKline and Ligand as a candidate for lipid disorders. It is not a SARM, although it is often sold alongside them, and it is not a peptide either: it is a small synthetic molecule built around a thiazole ring.\u003c\/p\u003e\n\u003cp\u003ePubChem lists it as CID 9803963, CAS number 317318-70-0, molecular formula C21H18F3NO3S2, molecular weight 453.5 and InChIKey YDBLKRPLXZNVNB-UHFFFAOYSA-N. The systematic name, 2-[2-methyl-4-[[4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl]methylsulfanyl]phenoxy]acetic acid, contains a sulphur atom in a thioether link; that sulphur is where the body oxidises the molecule, which matters for drug testing (see below).\u003c\/p\u003e\n\u003ch2\u003eWhat the published research reports\u003c\/h2\u003e\n\u003cp\u003eIn a 2008 study in mice, GW-501516 given alongside treadmill training increased running endurance compared with training alone, which led the authors to describe the compound as an exercise mimetic; without training it produced no endurance change in that study (Narkar et al., 2008). A 2012 trial in 268 people with low HDL cholesterol reported that, compared with baseline, HDL rose and LDL cholesterol and triglycerides fell over twelve weeks (Olson et al., 2012); the trial was short and not designed to assess long-term safety. Development was abandoned in 2007 after two-year carcinogenicity studies in rats and mice found tumours in multiple organs. Those toxicology results were presented at a conference and are not indexed on PubMed, so they are not cited here, but they are the most important fact about this compound. Nothing in this section is a claim about this product.\u003c\/p\u003e\n\u003ch2\u003eThis listing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eCompound: Cardarine (GW-501516)\u003c\/li\u003e\n\u003cli\u003eForm: Capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength: the manufacturer does not state the amount per capsule on the label, so we do not list one\u003c\/li\u003e\n\u003cli\u003eBatch certificate of analysis: shown where Thoroughbred Labs supplies one for the batch we hold\u003c\/li\u003e\n\u003cli\u003eSold for laboratory research to adults aged 18 and over; not for human consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSearches such as \"cardarine 10mg\" and \"cardarine 20mg UK\" assume a stated figure per capsule. This pack has none, so it cannot be matched to either number, and the total content per pack cannot be worked out from the label alone. Our guide to \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003ecomparing by price per milligram\u003c\/a\u003e explains why that matters when setting listings side by side.\u003c\/p\u003e\n\u003ch2\u003eCardarine in the UK: buying, legal status and what to check\u003c\/h2\u003e\n\u003cp\u003ePeople searching \"cardarine UK legal\", \"cardarine UK buy\" or \"UK sarms cardarine\" usually want two answers: whether a purchase is lawful, and whether a particular seller can be trusted. On the first, Cardarine is not a licensed medicine in the UK, has not been assessed by the MHRA, and is not an authorised food supplement. It is not listed as a controlled drug. This listing is offered only to adults aged 18 and over for laboratory research, not for human consumption. A seller who gives instructions for taking it, or describes what it will do for the buyer, is wrongly presenting it as a medicine or supplement.\u003c\/p\u003e\n\u003cp\u003eIn sport, GW-501516 is named on the WADA Prohibited List under section S4 (hormone and metabolic modulators) as a PPAR-delta agonist and is prohibited at all times. WADA issued a specific warning about it in 2013. Anyone subject to anti-doping rules should consult the current list. Our \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eresearch guide\u003c\/a\u003e covers the wider legal picture for compounds sold alongside SARMs.\u003c\/p\u003e\n\u003cp\u003eOn trust, star ratings and forum threads (the \"cardarine UK reviews\" and \"cardarine reddit\" searches) cannot tell you what is in a capsule. Documents can. A UK listing worth relying on should show:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eThe manufacturer's name and the compound's identifiers, so any certificate can be matched to GW-501516 rather than something similar. Here: Thoroughbred Labs, with CAS 317318-70-0 given above.\u003c\/li\u003e\n\u003cli\u003eA stated strength and capsule count. Here: 60 capsules, with the strength stated plainly as not given by the manufacturer rather than guessed.\u003c\/li\u003e\n\u003cli\u003eA certificate for the batch actually in stock, carrying a batch number. Here: shown only where Thoroughbred Labs supplies one for the batch we hold.\u003c\/li\u003e\n\u003cli\u003eAn identifiable seller with an age requirement and a returns route. Here: FreeMuscle LTD, a UK company in Scunthorpe, selling to adults aged 18 and over, with 30-day returns on unopened items.\u003c\/li\u003e\n\u003cli\u003eTracked delivery in plain packaging. Here: free tracked UK delivery on every order in plain packaging, orders placed before 2pm Monday to Friday processed the same working day, and EU delivery in 3-7 working days.\u003c\/li\u003e\n\u003cli\u003eNo usage instructions of any kind. Here: none given.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eDelivery and returns terms are on our \u003ca href=\"\/pages\/shipping\"\u003eshipping\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003eguarantee\u003c\/a\u003e pages. To see the brands of this compound we hold, including listings that do state a strength, use the \u003ca href=\"\/collections\/cardarine\"\u003eCardarine collection\u003c\/a\u003e. Our \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e applies the same questions to any shop.\u003c\/p\u003e\n\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\n\u003cp\u003eThoroughbred Labs is a third-party brand in the Muscle Market range, so the testing position differs from our own label. Every Free Muscle-brand batch is assayed by Janoshik Analytical, an independent laboratory, with the certificate sent on request by email. For Thoroughbred Labs products we show a certificate of analysis only where the manufacturer supplies one for the specific batch we hold. A generic PDF with no batch number is not a batch certificate, and we do not present one as such. Email us with the product name and we will send what we hold, or say plainly that there is none.\u003c\/p\u003e\n\u003cp\u003eWhen a certificate for this product is available, these are the fields to check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound name and identity method\u003c\/strong\u003e: the document should name GW-501516 and say how identity was established. HPLC matches the retention time of the sample against a reference standard; LC-MS adds a molecular mass, which for this compound should be consistent with the 453.5 molecular weight above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity\u003c\/strong\u003e: a percentage, normally from HPLC peak areas, showing how much of what was detected is the named compound. It says nothing about how much compound each capsule holds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent per capsule\u003c\/strong\u003e: the measured milligrams of GW-501516 in one capsule. Because the label here gives no strength, this is the only figure that would allow a per-pack total.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch or lot number\u003c\/strong\u003e: must match the code printed on the pack in your hands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest date and laboratory name\u003c\/strong\u003e: tie the result to a specific analysis of current stock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat a missing field means for this brand: no certificate at all means this listing makes no claim about identity, purity or content; a certificate with purity but no content confirms the molecule without telling you the amount per capsule; a batch number that differs from your pack means the document describes other stock. Our \u003ca href=\"\/pages\/lab-tests\"\u003elab tests page\u003c\/a\u003e and the article on \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a COA\u003c\/a\u003e go further, and you can \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e with any mismatch.\u003c\/p\u003e\n\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\n\u003cp\u003eCardarine is sold by other sellers as capsules, tablets and liquid suspensions or solutions. The molecule is the same in each; what differs is how the amount per unit is fixed and what can go wrong on the way. No published study compares these formats for GW-501516, so the points below come from general pharmaceutical practice rather than compound-specific data.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapsules\u003c\/strong\u003e hold a weighed powder fill, usually blended with an inert filler. Errors come from uneven blending or variable fill weight. Each capsule is a discrete unit a laboratory can assay, so content per capsule can be measured directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiquids\u003c\/strong\u003e carry a stated concentration in a solvent that is not always named. The compound has to stay dissolved or evenly suspended, and the amount in any measured volume depends on that as well as on measuring accuracy. A certificate confirms concentration on the test date only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowders\u003c\/strong\u003e sold loose require the researcher to weigh every portion, which moves the accuracy question onto the laboratory's own balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \"cardarine peptide\" search reflects a common mix-up. Peptides are chains of amino acids that digestive enzymes break apart, which is why research on giving them by mouth is contested (see \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003eDo oral peptides work?\u003c\/a\u003e). GW-501516 has no amino acid chain; it is a small organic molecule, and the human lipid trial cited above used oral administration. That is a statement about the chemistry and the trial design, not about this product. For this pack, the practical value of the capsule format depends on a certificate that reports measured content, since the label does not.\u003c\/p\u003e\n\u003ch2\u003eCardarine compared with SR9009 (stenabolic)\u003c\/h2\u003e\n\u003cp\u003e\"Stenabolic vs cardarine\" is the comparison people search most for this compound, because sellers list the two side by side for similar purposes. Pharmacologically they have little in common. GW-501516 activates PPAR-delta; SR9009 was described in a 2012 paper from the Scripps Research Institute as a synthetic agonist of REV-ERB-alpha and REV-ERB-beta, nuclear receptors that help drive the daily rhythm of clock genes (Solt et al., 2012). In that study, SR9009 was given to mice by intraperitoneal injection; the mice showed altered circadian activity and changes in metabolic gene expression, and diet-induced obese mice lost more fat mass than controls. The authors noted that handling and twice-daily injections themselves caused weight loss in the control animals.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePoint of comparison\u003c\/th\u003e\n\u003cth\u003eCardarine (GW-501516)\u003c\/th\u003e\n\u003cth\u003eSR9009 (stenabolic)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget\u003c\/td\u003e\n\u003ctd\u003ePPAR-delta agonist\u003c\/td\u003e\n\u003ctd\u003eREV-ERB-alpha and REV-ERB-beta agonist\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdentifiers\u003c\/td\u003e\n\u003ctd\u003eCAS 317318-70-0; C21H18F3NO3S2\u003c\/td\u003e\n\u003ctd\u003eCAS 1379686-30-2; C20H24ClN3O4S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGlaxoSmithKline and Ligand, lipid disorder programme\u003c\/td\u003e\n\u003ctd\u003eAcademic research compound, Scripps Research Institute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman data\u003c\/td\u003e\n\u003ctd\u003ePhase II lipid trials; development stopped in 2007 after rodent carcinogenicity findings\u003c\/td\u003e\n\u003ctd\u003eNo published human trial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain published evidence\u003c\/td\u003e\n\u003ctd\u003eMouse endurance study; human lipid trial\u003c\/td\u003e\n\u003ctd\u003eMouse studies using injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUK status\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only, 18+\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only, 18+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA\u003c\/td\u003e\n\u003ctd\u003eS4 metabolic modulator, prohibited at all times\u003c\/td\u003e\n\u003ctd\u003eS4 metabolic modulator, prohibited at all times\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeither compound is a SARM, and neither has ever been approved as a medicine. Cardarine has the larger human evidence base but also the toxicology finding that ended its development; SR9009 has no human trial at all, so statements about its effects in people rest on anecdote. We make no claim about either in combination with anything else. The \u003ca href=\"\/collections\/sr9009\"\u003eSR9009 collection\u003c\/a\u003e lists the brands we stock, and our \u003ca href=\"\/blogs\/news\/sr9009-stenabolic-research-guide\"\u003eSR9009 research guide\u003c\/a\u003e covers the 2012 work in more detail.\u003c\/p\u003e\n\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\n\u003cp\u003eGW-501516 has been on the WADA Prohibited List since January 2009, when it was first categorised under gene doping; it now sits in section S4 among metabolic modulators and is banned both in and out of competition. Under the strict liability principle an athlete is responsible for any prohibited substance found in a sample, including one from a mislabelled or contaminated product.\u003c\/p\u003e\n\u003cp\u003eAnti-doping laboratories do not rely only on the parent molecule. A 2010 study from the German Sport University Cologne identified two major urinary metabolites, the sulfoxide and the sulfone formed by oxidation of that thioether sulphur, and validated a routine urine screening method with a limit of detection of 0.1 ng\/ml (Thevis et al., 2010). The paper established what to look for and how sensitively; it did not measure how long after exposure the compound or its metabolites remain detectable. For this capsule product the answer is therefore: detectable, window not established. Our article on \u003ca href=\"\/blogs\/news\/cardarine-gw-501516-what-happened-in-development\"\u003ewhy Cardarine development stopped\u003c\/a\u003e covers the history behind the ban.\u003c\/p\u003e\n\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\n\u003cp\u003eWe know of no published study on how GW-501516 keeps in capsule form, so the expiry date, where Thoroughbred Labs prints one, is the only product-specific guide. General good practice applies. Store the sealed container somewhere cool and dry, away from direct sunlight and heat sources. Gelatine and plant-based capsule shells both react to humidity: damp air softens them and can let moisture reach the powder, and very dry air can make them brittle.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeep capsules in the original container, which carries the batch number that links them to any certificate.\u003c\/li\u003e\n\u003cli\u003eRecord the date received, the date first opened and the batch number in your laboratory log.\u003c\/li\u003e\n\u003cli\u003eHandle capsules and any spilled powder with nitrile gloves.\u003c\/li\u003e\n\u003cli\u003eDispose of expired or surplus material through your organisation's chemical waste route, not household waste.\u003c\/li\u003e\n\u003cli\u003eKeep out of reach of children and pets, and apart from food and drink.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGlossary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePPAR-delta\u003c\/strong\u003e: peroxisome proliferator-activated receptor delta, a nuclear receptor that switches on genes for fatty acid use; GW-501516 activates it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNuclear receptor\u003c\/strong\u003e: a protein inside the cell that binds a molecule and then changes which genes are read.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgonist\u003c\/strong\u003e: a compound that binds a receptor and activates it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExercise mimetic\u003c\/strong\u003e: a label researchers gave compounds that reproduced some molecular effects of training in animals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eREV-ERB\u003c\/strong\u003e: a pair of nuclear receptors in the body's clock machinery; SR9009 was designed to activate them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarcinogenicity study\u003c\/strong\u003e: a long-term animal study, often two years in rodents, run to see whether a drug candidate causes tumours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHDL cholesterol\u003c\/strong\u003e: high-density lipoprotein cholesterol, the blood lipid measure the 2012 GW-501516 trial tracked.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetabolite\u003c\/strong\u003e: a compound the body produces by chemically altering a substance; anti-doping tests for GW-501516 target its sulfoxide and sulfone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit of detection\u003c\/strong\u003e: the smallest amount per millilitre of urine that a validated screening method picks up consistently, 0.1 ng\/ml in the 2010 GW-501516 method.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict liability\u003c\/strong\u003e: under the World Anti-Doping Code, a positive sample is the athlete's responsibility whether the substance came from a deliberate choice or a contaminated product.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/cardarine\"\u003eAll brands of Cardarine we stock, compared\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eAll Thoroughbred Labs products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/sr9009\"\u003eSR9009 (stenabolic)\u003c\/a\u003e and the wider \u003ca href=\"\/collections\/sarms\"\u003eSARMs range\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/cardarine-gw-501516-what-happened-in-development\"\u003eCardarine (GW-501516): why development stopped and what the data show\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/lab-tests\"\u003eBatch testing and certificates of analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis product is supplied for laboratory research use only. It has not been evaluated by the MHRA, EMA or FDA. It is not a medicine, not a food supplement and not for human consumption. Sold only to adults aged 18 and over. Nothing on this page is medical, dosing or usage advice, and descriptions of published studies are not claims about this product.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eNarkar VA, et al. AMPK and PPARdelta agonists are exercise mimetics. Cell. 2008;134(3):405-15. PMID: 18674809.\u003c\/li\u003e\n\u003cli\u003eOlson EJ, et al. Lipid effects of peroxisome proliferator-activated receptor-delta agonist GW501516 in subjects with low high-density lipoprotein cholesterol: characteristics of metabolic syndrome. Arterioscler Thromb Vasc Biol. 2012;32(9):2289-94. PMID: 22814748.\u003c\/li\u003e\n\u003cli\u003eThevis M, et al. Characterization of two major urinary metabolites of the PPARdelta-agonist GW1516 and implementation of the drug in routine doping controls. Anal Bioanal Chem. 2010;396(7):2479-91. PMID: 19946680.\u003c\/li\u003e\n\u003cli\u003eSolt LA, et al. Regulation of circadian behaviour and metabolism by synthetic REV-ERB agonists. Nature. 2012;485(7396):62-8. PMID: 22460951.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980498658,"sku":null,"price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/GW.png?v=1789931426"},{"product_id":"thoroughbred-labs-mk677","title":"Thoroughbred Labs MK-677","description":"\u003cp\u003eThoroughbred Labs MK-677 is a 60-capsule pack of ibutamoren (MK-677), a ghrelin receptor agonist and growth hormone secretagogue, made by Thoroughbred Labs and stocked by Free Muscle in the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range. The manufacturer prints no per-capsule strength on the label, so we list it as not stated rather than guess. It is sold only for laboratory research, to adults aged 18 and over.\u003c\/p\u003e\u003ch2\u003eAbout MK-677\u003c\/h2\u003e\u003cp\u003eIbutamoren (MK-677, L-163,191, sometimes sold under the name Nutrobal) is a small-molecule, non-peptide agonist of the growth hormone secretagogue receptor, GHS-R1a, the receptor for the hunger hormone ghrelin. Because it is orally available and mimics ghrelin at the pituitary, it stimulates the release of the body's own growth hormone rather than supplying the hormone directly. PubChem records the free base under CAS number 159634-47-6, with formula C27H36N4O5S, molecular weight 528.7 and InChIKey UMUPQWIGCOZEOY-JOCHJYFZSA-N.\u003c\/p\u003e\u003cp\u003eMerck studied MK-677 in the 1990s and 2000s. Chapman and colleagues gave it by mouth once a day to 32 healthy volunteers aged 64 to 81, over study periods of two and four weeks. Growth hormone pulses grew taller without becoming more frequent, and serum IGF-1 climbed into the range seen in young adults; fasting glucose also rose, prolactin went up by 23 per cent while staying within the normal range, and cortisol did not change (Chapman et al., 1996).\u003c\/p\u003e\u003cp\u003eThe longest trial randomised 65 healthy adults aged 60 to 81 to MK-677 or placebo for up to two years, with its main end points assessed at one year (Nass et al., 2008). Fat-free mass rose by an average of 1.1 kg on MK-677 and fell by 0.5 kg on placebo, yet strength and function did not improve. On the other side of the ledger, body weight rose by 2.7 kg on MK-677 and 0.8 kg on placebo, fasting glucose climbed by an average of 0.3 mmol\/L, insulin sensitivity fell and cortisol rose. Increased appetite, which eased after a few months, and transient mild leg swelling and muscle pain were the commonest side effects. MK-677 has never been licensed as a medicine. None of this research constitutes a claim about the product on this page.\u003c\/p\u003e\u003ch2\u003eThis listing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompound: MK-677 (Ibutamoren)\u003c\/li\u003e\n\u003cli\u003eBrand: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eForm: capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength per capsule: not stated by the manufacturer on the label\u003c\/li\u003e\n\u003cli\u003eTotal per pack: cannot be calculated without a stated strength\u003c\/li\u003e\n\u003cli\u003eIntended use: laboratory research only, not for human consumption\u003c\/li\u003e\n\u003cli\u003eSold to adults aged 18 and over\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWith no strength on the label there is no total per pack and no price per milligram, so this pack cannot be set against brands that print a figure. The one document that could supply a measured content is a batch certificate, where Thoroughbred Labs provides one. The method for packs that do state a strength is explained in \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003eprice per milligram\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eMK-677 in the UK: buying, legal status and what to check\u003c\/h2\u003e\u003cp\u003eOf the UK searches for this compound, \"MK 677 UK legal\" is a question about the law, while \"MK677 UK buy\" and \"MK677 UK supplier\" come down to what a listing lets you verify.\u003c\/p\u003e\u003ch3\u003eThe legal position\u003c\/h3\u003e\u003cp\u003eIbutamoren has never received an MHRA marketing authorisation, so in the UK it is not a licensed medicine. Nor is it an authorised food supplement, so nobody may lawfully sell it for people to consume. It is not a controlled drug. Free Muscle therefore sells it only as a laboratory research compound, to buyers aged 18 or over. WADA prohibits it at all times under section S2, and each buyer is responsible for the rules that bind them, an anti-doping code included. More detail is on our \u003ca href=\"\/pages\/mk-677-legal-status-uk\"\u003eMK-677 legal status in the UK\u003c\/a\u003e page.\u003c\/p\u003e\u003ch3\u003eWhat a UK listing should let you check\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNamed businesses.\u003c\/strong\u003e Thoroughbred Labs manufactures the capsules; FreeMuscle LTD, a UK company based in Scunthorpe, sells and ships them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA strength and a count.\u003c\/strong\u003e The count is 60 capsules; the strength is missing because the manufacturer does not state it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA lot number tied to a certificate.\u003c\/strong\u003e We show a certificate only where Thoroughbred Labs supplies one for the batch we hold; email us to ask whether one exists for the current stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo directions for use.\u003c\/strong\u003e A research compound cannot also be sold for consumption, so no quantities or promised outcomes appear here.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA parcel you can follow.\u003c\/strong\u003e Each UK order goes out free, tracked and in plain packaging, and anything ordered before 2pm on a weekday is processed that working day; EU orders arrive in 3-7 working days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA published returns policy.\u003c\/strong\u003e A sealed pack can be sent back within 30 days; our \u003ca href=\"\/pages\/shipping\"\u003edelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003eguarantee\u003c\/a\u003e pages give the conditions.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eAgainst that list, this pack's weak point is the missing strength. Where a stated figure matters, the \u003ca href=\"\/collections\/mk-677\"\u003eMK-677 collection\u003c\/a\u003e includes packs that print one, such as iMuscle's \u003ca href=\"\/products\/imuscle-ibutamoren-mk-677-60-10mg\"\u003e10mg capsules\u003c\/a\u003e and Free Muscle's own \u003ca href=\"\/products\/mk-677-ibutamoren-10mg\"\u003e10mg\u003c\/a\u003e, \u003ca href=\"\/products\/mk-677-ibutamoren-12-5mg\"\u003e12.5mg\u003c\/a\u003e and \u003ca href=\"\/products\/mk-677-ibutamoren-25mg\"\u003e25mg\u003c\/a\u003e strengths, which Janoshik Analytical assays batch by batch. Forum threads and reviews can report how a parcel arrived, never what a capsule held. Our \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e applies the same tests to any shop.\u003c\/p\u003e\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\u003cp\u003eMK-677 is searched for as tablets, capsules, liquid and even as a \"peptide\". It is not a peptide but a synthetic small molecule designed to mimic growth hormone releasing peptides at their receptor while staying active by mouth; both trials above gave it orally, and neither used an injectable form. The digestive breakdown that limits swallowed peptides (see \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003edo oral peptides work\u003c\/a\u003e) is therefore not the issue. What changes between forms is where the stated amount can drift and what a certificate can vouch for.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003cth\u003eWhere the stated amount can drift\u003c\/th\u003e\n\u003cth\u003eWhat to ask of its certificate\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapsules (this product)\u003c\/td\u003e\n\u003ctd\u003eUneven blending or fill weight between capsules\u003c\/td\u003e\n\u003ctd\u003eDoes it report milligrams found per capsule, not only purity?\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTablets\u003c\/td\u003e\n\u003ctd\u003eBlend uniformity, and uneven halves if a tablet is split\u003c\/td\u003e\n\u003ctd\u003eIs content per tablet measured on the finished tablets?\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiquids\u003c\/td\u003e\n\u003ctd\u003eSettling or crystallising, solvent loss from an opened bottle, dropper error\u003c\/td\u003e\n\u003ctd\u003eWas the finished liquid tested, and when? A raw-powder certificate says nothing about concentration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoose powder\u003c\/td\u003e\n\u003ctd\u003eEvery portion depends on the accuracy of a balance at milligram scale\u003c\/td\u003e\n\u003ctd\u003eIdentity and purity are all it can confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eSalt form matters too. Ibutamoren is often made as its mesylate (methanesulfonate) salt, which is heavier than the free base, so a milligram of salt holds less than a milligram of ibutamoren; a label or certificate should say which it means. None of this suggests one form performs differently; it concerns only what can be verified.\u003c\/p\u003e\u003ch2\u003eMK-677 compared with ipamorelin\u003c\/h2\u003e\u003cp\u003e\"Ibutamoren vs ipamorelin\" is the comparison most searched for this compound. Both activate GHS-R1a and prompt the pituitary to release its own growth hormone, but they are different kinds of molecule with unequal research records.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eMK-677 (this product)\u003c\/th\u003e\n\u003cth\u003eIpamorelin\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of molecule\u003c\/td\u003e\n\u003ctd\u003eNon-peptide small molecule\u003c\/td\u003e\n\u003ctd\u003ePentapeptide, Aib-His-D-2-Nal-D-Phe-Lys-NH2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormula and molecular weight\u003c\/td\u003e\n\u003ctd\u003eC27H36N4O5S, 528.7\u003c\/td\u003e\n\u003ctd\u003eC38H49N9O5, 711.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain published evidence\u003c\/td\u003e\n\u003ctd\u003eRandomised placebo-controlled trials in older adults, the longest two years\u003c\/td\u003e\n\u003ctd\u003eRat and pig pharmacology; a small human literature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCortisol\u003c\/td\u003e\n\u003ctd\u003eUnchanged over four weeks (1996); raised at twelve months (2008)\u003c\/td\u003e\n\u003ctd\u003eNot raised in pigs beyond the level seen with GHRH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLicensed as a medicine\u003c\/td\u003e\n\u003ctd\u003eNowhere\u003c\/td\u003e\n\u003ctd\u003eNowhere\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA\u003c\/td\u003e\n\u003ctd\u003eS2, prohibited at all times\u003c\/td\u003e\n\u003ctd\u003eS2, prohibited at all times\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe word that separates them is \"selective\". In the 1998 paper introducing ipamorelin, Novo Nordisk researchers found that in conscious pigs it released growth hormone about as potently as the older peptide GHRP-6 but, unlike GHRP-6 and GHRP-2, did not raise ACTH or cortisol above the levels seen with GHRH, even at amounts far beyond those needed for a growth hormone response (Raun et al., 1998). For MK-677 the comparable data are human: cortisol held steady over four weeks but rose over twelve months. Species, designs and durations differ, so these results cannot show which is more selective in people, and we know of no trial giving both to the same participants.\u003c\/p\u003e\u003cp\u003eIpamorelin is a peptide, so absorption by mouth is an open question for it in a way it is not for MK-677; its human studies are summarised in the \u003ca href=\"\/blogs\/news\/ipamorelin-research-guide\"\u003eipamorelin research guide\u003c\/a\u003e. Regulatory status is identical: both are unlicensed, sold here only for laboratory research to adults, and listed in WADA section S2. The ipamorelin we stock is on the \u003ca href=\"\/collections\/ipamorelin\"\u003eipamorelin collection page\u003c\/a\u003e, and \u003ca href=\"\/blogs\/news\/mk-677-vs-ipamorelin-vs-hgh\"\u003eMK-677 vs ipamorelin vs HGH\u003c\/a\u003e adds somatropin to the comparison. None of this recommends either compound.\u003c\/p\u003e\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\u003cp\u003eThoroughbred Labs, not Free Muscle, is the source of any certificate of analysis (COA) for this product. For third-party brands we display a COA only when the manufacturer has supplied one for the batch actually in our stock, and otherwise say none is available rather than show a generic document; email us before ordering to ask what exists for the current batch. Janoshik Analytical's independent batch testing covers Free Muscle-brand compounds only, not Thoroughbred Labs stock. Where a certificate exists, read it field by field.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eField\u003c\/th\u003e\n\u003cth\u003eWhat it should show for this product\u003c\/th\u003e\n\u003cth\u003eIf it is missing\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompound\u003c\/td\u003e\n\u003ctd\u003eIbutamoren or MK-677, ideally with CAS 159634-47-6\u003c\/td\u003e\n\u003ctd\u003eThe document may describe another product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdentity method\u003c\/td\u003e\n\u003ctd\u003eRetention time matched to an ibutamoren reference standard by HPLC, or an LC-MS mass that fits C27H36N4O5S\u003c\/td\u003e\n\u003ctd\u003eA purity figure alone does not prove the substance is ibutamoren\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereochemistry\u003c\/td\u003e\n\u003ctd\u003eThe (2R) form in PubChem's systematic name and InChIKey\u003c\/td\u003e\n\u003ctd\u003eIts enantiomer weighs exactly the same, so only a chiral separation can exclude it; without one the question stays open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePurity\u003c\/td\u003e\n\u003ctd\u003eA percentage, usually from HPLC peak areas\u003c\/td\u003e\n\u003ctd\u003eImpurities and breakdown products are unknown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContent per capsule\u003c\/td\u003e\n\u003ctd\u003eMilligrams found per capsule, stating whether as free base or mesylate\u003c\/td\u003e\n\u003ctd\u003eThe pack's total content stays unknown, since the label gives no strength\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBatch number\u003c\/td\u003e\n\u003ctd\u003eThe same lot as printed on your pack\u003c\/td\u003e\n\u003ctd\u003eIt describes other stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest date and laboratory\u003c\/td\u003e\n\u003ctd\u003eA date and a named laboratory that can confirm the report\u003c\/td\u003e\n\u003ctd\u003eThe result cannot be traced or dated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eFor this pack the content row matters most: purity without milligrams per capsule confirms the substance but not the amount. See \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a COA\u003c\/a\u003e and our \u003ca href=\"\/pages\/lab-tests\"\u003elab tests\u003c\/a\u003e page, and \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e with the lot number if a certificate does not match your pack.\u003c\/p\u003e\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\u003cp\u003eWADA names ibutamoren among the growth hormone secretagogues in section S2 of the Prohibited List, banned in and out of competition. Accredited laboratories screen urine for it and its metabolites, and under strict liability an athlete answers for whatever is found in their sample, however it got there.\u003c\/p\u003e\u003cp\u003eHow long it stays detectable is less settled. We have found no verified human study that sets a urine detection window. Hair has been studied: in a forensic report, hair collected four weeks after a single oral exposure in one male volunteer tested positive for ibutamoren, using a method with a limit of detection of 0.1 pg\/mg (Kintz and Gheddar, 2026). The authors wanted reference data because anti-doping authorities have urged caution over hair results in Court of Arbitration for Sport hearings. One volunteer and one exposure cannot define a window, and the finding concerns hair rather than the urine samples most tests rely on. For urine the accurate statement is: detectable, window not established. Anyone bound by an anti-doping code should treat any contact with MK-677 as a risk of an adverse finding.\u003c\/p\u003e\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\u003cp\u003eTo our knowledge nobody has published a stability study of ibutamoren in capsule form, so no shelf life is quoted here. Work to any date Thoroughbred Labs prints on the pack; a certificate describes a batch only as it was when tested.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOriginal container.\u003c\/strong\u003e The lot number on the manufacturer's pack is what ties the capsules to a certificate. Decanting them breaks that link, and so does mixing capsules from two packs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCool, dry and dark.\u003c\/strong\u003e Keep the pack away from radiators, sunny windowsills and steamy rooms, as capsule shells absorb moisture and can soften and stick together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed.\u003c\/strong\u003e Close the lid fully after each opening, leaving any desiccant sachet in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChecked.\u003c\/strong\u003e Set aside discoloured, clumped or cracked capsules and report the lot number to us.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecorded and handled with care.\u003c\/strong\u003e Log the dates of receipt and first opening, wear nitrile gloves, keep the material away from food and out of reach of children and pets, and send surplus for chemical waste disposal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKeep the seal intact until needed, because the 30-day return option covers unopened items only.\u003c\/p\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIbutamoren\u003c\/strong\u003e: the International Nonproprietary Name for MK-677, whose Merck codes include L-163,191 and MK-0677.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth hormone secretagogue\u003c\/strong\u003e: the class name for compounds, ibutamoren among them, that raise growth hormone by acting on the pituitary instead of replacing the hormone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGHS-R1a\u003c\/strong\u003e: growth hormone secretagogue receptor type 1a, the receptor ghrelin binds and the one both MK-677 and ipamorelin activate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIGF-1\u003c\/strong\u003e: insulin-like growth factor 1, made largely in the liver in response to growth hormone; trials use its level as a sign that the growth hormone axis has been stimulated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFat-free mass\u003c\/strong\u003e: everything except fat, including water and organs, so a rise is not the same as a muscle gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulin sensitivity\u003c\/strong\u003e: how strongly tissues respond to insulin; when it falls, blood glucose tends to rise, as in the MK-677 trials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree base and mesylate\u003c\/strong\u003e: the neutral molecule and its heavier methanesulfonate salt; milligram figures for one do not transfer to the other.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnantiomer\u003c\/strong\u003e: either of two mirror-image versions of one molecule, identical in mass and separable only by chiral analysis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit of detection\u003c\/strong\u003e: the lowest concentration at which a test can confirm a substance is present.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/mk-677\"\u003eEvery MK-677 brand we stock\u003c\/a\u003e, side by side on strength and batch testing\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eThe Thoroughbred Labs range\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eRelated collections: \u003ca href=\"\/collections\/ipamorelin\"\u003eIpamorelin\u003c\/a\u003e, \u003ca href=\"\/collections\/mk-777\"\u003eMK-777 (Acetamoren)\u003c\/a\u003e and \u003ca href=\"\/collections\/hgh\"\u003eHGH (Somatropin)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/blogs\/news\/mk-677-ibutamoren-what-the-research-says\"\u003eMK-677 (ibutamoren): what the research says\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/mk-677-brands-compared\"\u003eMK-677 by brand\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eResearch use only: Thoroughbred Labs MK-677 is neither a medicine nor a food supplement, has not been evaluated by the MHRA, EMA or FDA, and is not for human consumption. We sell it only to adults aged 18 and over, and nothing on this page is medical, dosing or usage advice.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eReferences\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eChapman IM, et al. Stimulation of the growth hormone (GH)-insulin-like growth factor I axis by daily oral administration of a GH secretogogue (MK-677) in healthy elderly subjects. J Clin Endocrinol Metab. 1996;81(12):4249-57. PMID: 8954023.\u003c\/li\u003e\n\u003cli\u003eNass R, et al. Effects of an oral ghrelin mimetic on body composition and clinical outcomes in healthy older adults: a randomized trial. Ann Intern Med. 2008;149(9):601-11. PMID: 18981485.\u003c\/li\u003e\n\u003cli\u003eRaun K, et al. Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol. 1998;139(5):552-61. PMID: 9849822.\u003c\/li\u003e\n\u003cli\u003eKintz P, Gheddar L. Knowing the minimal detectable dose can facilitate the interpretation of a hair test result: II. Case example with ibutamoren (MK-677), a growth hormone secretagogue. Clin Chim Acta. 2026;578:120578. PMID: 40882886.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980531426,"sku":null,"price":44.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/MK_9dbb4d7d-429d-47d4-a596-5b0cd5958d9f.png?v=1789931427"},{"product_id":"thoroughbred-labs-rad140","title":"Thoroughbred Labs RAD-140","description":"\u003cp\u003eThoroughbred Labs RAD-140 is a 60-capsule pack of RAD-140 (testolone), a non-steroidal SARM, produced by Thoroughbred Labs and stocked by Free Muscle through \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e. The manufacturer does not print a per-capsule milligram figure on the label, so the strength is listed as not stated. This listing is for laboratory research by adults aged 18 and over, and nothing here is guidance on use.\u003c\/p\u003e\u003ch2\u003eAbout RAD-140\u003c\/h2\u003e\u003cp\u003eRAD-140 (testolone) belongs to the SARM class: non-steroidal molecules that act as ligands at the androgen receptor. The molecule was first described in a 2011 paper from Radius Health, which described it as a potent, orally bioavailable, non-steroidal SARM and reported its characterisation in several preclinical models of anabolic androgen action (Miller et al., 2011). Those models were animal experiments, not human studies.\u003c\/p\u003e\u003cp\u003ePubChem records it under CAS number 1182367-47-0, formula C20H16ClN5O2, molecular weight 393.8 and InChIKey XMBUPPIEVAFYHO-KPZWWZAWSA-N. The systematic name, 2-chloro-4-[[(1R,2S)-1-[5-(4-cyanophenyl)-1,3,4-oxadiazol-2-yl]-2-hydroxypropyl]amino]-3-methylbenzonitrile, shows two defined stereocentres and no steroid ring system, and vosilasarm is listed among its synonyms.\u003c\/p\u003e\u003cp\u003eThe only published human trial is a Phase 1 dose-finding study in patients with hormone-receptor-positive metastatic breast cancer, reported in 2022 (LoRusso et al., 2022). Raised AST, ALT and bilirubin were among the most frequent adverse events, grade 3 or 4 adverse events occurred in 16 of the 22 patients, and the investigators identified a maximum tolerated dose. Two blood markers moved as expected for an androgen: sex hormone-binding globulin fell in every one of the 18 women tested and prostate-specific antigen rose in 16 of 20, which the investigators took as evidence that the receptor was engaged. The trial assessed tolerability and tumour response, not muscle or strength. Outside trials, case reports describe cholestatic liver injury in people who had taken products sold as RAD-140 (Leung et al., 2022), and hypogonadism in a man whose supplements contained RAD-140 together with other undeclared substances, so no single compound could be blamed (Chong et al., 2024). The findings summarised here describe the compound in research settings and are not claims about this product.\u003c\/p\u003e\u003ch2\u003eThis listing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompound: RAD-140 (Testolone)\u003c\/li\u003e\n\u003cli\u003eBrand: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eForm: capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength per capsule: not stated by the manufacturer on the label\u003c\/li\u003e\n\u003cli\u003eTotal per pack: cannot be calculated without a stated strength\u003c\/li\u003e\n\u003cli\u003eIntended use: laboratory research only, not for human consumption\u003c\/li\u003e\n\u003cli\u003eSold to adults aged 18 and over\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBecause Thoroughbred Labs does not state the per-capsule content, this pack cannot be compared on milligrams with brands that do. A batch certificate, if available, may give a measured content. See \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003ehow to compare by milligram\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eRAD-140 in the UK: buying, legal status and what to check\u003c\/h2\u003e\u003cp\u003eMost UK searches for this compound, \"RAD 140 UK sale\" and \"testolone RAD 140 UK\" among them, come down to whether it can be bought lawfully and whether a given listing deserves trust. The legal answer is narrow. RAD-140 has no MHRA marketing authorisation, so it is not a licensed medicine in the UK; it is not an authorised food supplement; and it therefore cannot lawfully be sold for human consumption. Free Muscle sells it to adults aged 18 or over for laboratory research only. WADA prohibits it at all times under section S1 (anabolic agents), and buyers are responsible for the rules that apply to them, including any anti-doping code. The class as a whole is covered in \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eWhat are SARMs? The 2026 research guide\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eTrust matters because labels in this market have a poor record. Of 44 products bought online as SARMs in 2016 and analysed with WADA-approved procedures, only 23 (52 per cent) contained a SARM, 4 contained no active compound, 11 contained substances not on the label, and the measured amount matched the label in just 18 (41 per cent) (Van Wagoner et al., 2017). Those products came from other sellers, so the figures show the scale of the problem, not the contents of any particular pack. The table shows what a checkable listing includes.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWhat to look for\u003c\/th\u003e\n\u003cth\u003eWhy it matters\u003c\/th\u003e\n\u003cth\u003eThis listing\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNamed manufacturer and compound identifiers\u003c\/td\u003e\n\u003ctd\u003eA certificate can be matched to the right molecule\u003c\/td\u003e\n\u003ctd\u003eThoroughbred Labs; CAS number given above\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStated strength and capsule count\u003c\/td\u003e\n\u003ctd\u003eTotal content per pack can be worked out\u003c\/td\u003e\n\u003ctd\u003e60 capsules; strength not stated by the manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate for the batch in stock\u003c\/td\u003e\n\u003ctd\u003eA generic document says nothing about your pack\u003c\/td\u003e\n\u003ctd\u003eShown only where Thoroughbred Labs supplies one for the batch we hold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccountable UK seller\u003c\/td\u003e\n\u003ctd\u003eSomeone to contact, an age check and a returns route\u003c\/td\u003e\n\u003ctd\u003eFreeMuscle LTD, Scunthorpe; 18+ only; unopened items returnable within 30 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracked delivery in plain packaging\u003c\/td\u003e\n\u003ctd\u003eThe parcel can be followed and does not advertise its contents\u003c\/td\u003e\n\u003ctd\u003eFree tracked UK delivery in plain packaging on every order; EU delivery 3-7 working days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo instructions for human use\u003c\/td\u003e\n\u003ctd\u003eA research compound cannot also be sold for consumption\u003c\/td\u003e\n\u003ctd\u003eNone given\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eOrders placed before 2pm Monday to Friday are processed the same working day; details are on our \u003ca href=\"\/pages\/shipping\"\u003eshipping\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003eguarantee\u003c\/a\u003e pages. Where a stated strength matters, the \u003ca href=\"\/collections\/rad-140\"\u003eRAD-140 collection\u003c\/a\u003e sets the brands we stock side by side, and our \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e applies the same tests to any shop.\u003c\/p\u003e\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\u003cp\u003eAny certificate of analysis for this product comes from Thoroughbred Labs, not from Free Muscle. Our policy for third-party brands is simple: we show a COA where the manufacturer supplies one for the batch we hold, and not otherwise. Email us to ask what documentation exists for the current batch before ordering. Free Muscle-brand compounds are batch-tested by the independent laboratory Janoshik Analytical; Thoroughbred Labs products are not in that programme. Where a certificate exists, read it field by field.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity\u003c\/strong\u003e: is the substance RAD-140? High-performance liquid chromatography (HPLC) compares its retention time with a reference standard; liquid chromatography with mass spectrometry (LC-MS) also measures molecular mass, and RAD-140 gives a protonated ion at m\/z 394 (Wagener et al., 2022). The compound named should match the CAS number and formula above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity\u003c\/strong\u003e: a percentage, usually calculated from HPLC peak areas, stating how much of the material detected is RAD-140 rather than impurities. A high purity figure can sit alongside any quantity of compound per capsule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent per capsule\u003c\/strong\u003e: milligrams of RAD-140 actually found in a capsule. On an unlabelled pack like this one it is the only route to a total per pack and a price-per-milligram comparison.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch or lot number\u003c\/strong\u003e: the code on the certificate and the code on your pack should be identical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest date and laboratory\u003c\/strong\u003e: show when and by whom the batch was analysed; an undated document cannot be tied to current stock.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThree gaps are common with third-party stock. If Thoroughbred Labs has supplied no certificate for the batch we hold, this listing makes no claim about identity, purity or content. If a certificate reports purity without content, it confirms the molecule but leaves the quantity per capsule unknown. If its batch number differs from the one on your pack, it describes other stock. See \u003ca href=\"\/pages\/lab-tests\"\u003elab tests\u003c\/a\u003e and \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a COA\u003c\/a\u003e, and \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e if anything does not match.\u003c\/p\u003e\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\u003cp\u003eOther sellers offer RAD-140 as tablets or liquids, which is what searches for \"RAD 140 tablets UK\" and \"RAD 140 liquid UK\" reflect. Changing the format leaves the compound untouched but changes three practical things: how the quantity in each unit is set, where errors creep in, and what a batch analysis can prove. No published work compares the formats for RAD-140, so the table reflects general pharmaceutical practice.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003cth\u003eHow the amount per unit is set\u003c\/th\u003e\n\u003cth\u003eMain sources of error\u003c\/th\u003e\n\u003cth\u003eWhat a batch certificate can confirm\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapsule\u003c\/td\u003e\n\u003ctd\u003eA measured powder fill, usually blended with a filler\u003c\/td\u003e\n\u003ctd\u003eUneven blending; variation in fill weight\u003c\/td\u003e\n\u003ctd\u003eIdentity, purity and content per capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTablet\u003c\/td\u003e\n\u003ctd\u003eA powder blend compressed with binders\u003c\/td\u003e\n\u003ctd\u003eBlend uniformity; losses during compression and coating\u003c\/td\u003e\n\u003ctd\u003eIdentity, purity and content per tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiquid\u003c\/td\u003e\n\u003ctd\u003eA stated concentration in a solvent, measured by volume\u003c\/td\u003e\n\u003ctd\u003eSolubility and stability in the solvent; accuracy of volume; solvent not always named\u003c\/td\u003e\n\u003ctd\u003eIdentity and concentration on the test date only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003ePeptides are amino acid chains that digestive enzymes break down, which is why research on peptides given by mouth is contested (see \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003eDo oral peptides work?\u003c\/a\u003e). RAD-140 has no such chain: it is a small heterocyclic molecule that its discoverers reported as orally bioavailable in animal models (Miller et al., 2011), a point of chemistry rather than a claim about this product. For this pack, the capsule's advantage as a discrete unit a laboratory can assay only becomes useful when a certificate reports measured content per capsule, because the label gives no strength.\u003c\/p\u003e\u003ch2\u003eRAD-140 compared with RAD-150 (TLB-150)\u003c\/h2\u003e\u003cp\u003eAmong comparison searches for this compound, \"RAD 140 vs RAD 150\" leads, with \"TLB 150 vs RAD 140\" asking the same thing under another name. RAD-150 is sold as the benzoate ester of RAD-140: the same core molecule with a benzoic acid group joined through an ester bond to its single hydroxyl group. Sellers present the ester as longer-acting, an idea borrowed from injectable testosterone esters that has not been tested for RAD-150 in any published study.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePoint of comparison\u003c\/th\u003e\n\u003cth\u003eRAD-140 (testolone)\u003c\/th\u003e\n\u003cth\u003eRAD-150 (TLB-150)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhat it is\u003c\/td\u003e\n\u003ctd\u003eNon-steroidal SARM, CAS 1182367-47-0\u003c\/td\u003e\n\u003ctd\u003eDescribed as the benzoate ester of RAD-140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanism\u003c\/td\u003e\n\u003ctd\u003eAndrogen receptor agonist\u003c\/td\u003e\n\u003ctd\u003eNot studied; conversion to RAD-140 never measured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePubMed-indexed research\u003c\/td\u003e\n\u003ctd\u003e2011 discovery paper, a phase 1 cancer trial, anti-doping excretion work and liver injury case reports\u003c\/td\u003e\n\u003ctd\u003eNo relevant records in a search on 26 September 2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman data\u003c\/td\u003e\n\u003ctd\u003ePhase 1 trial in 22 women with breast cancer; excretion studies in adult men\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUK status\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only, 18+\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only, 18+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA\u003c\/td\u003e\n\u003ctd\u003eNamed under S1.2, prohibited at all times\u003c\/td\u003e\n\u003ctd\u003eNot named, but S1.2 is not a closed list\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrands we stock\u003c\/td\u003e\n\u003ctd\u003eFree Muscle, iMuscle, Yakka Strength, Thoroughbred Labs\u003c\/td\u003e\n\u003ctd\u003eFree Muscle only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eAn ester adds mass, so a milligram of RAD-150 contains less than a milligram of the RAD-140 core, and label strengths of the two are not interchangeable. Every statement about RAD-150's activity, timing or adverse effects is inferred from RAD-140 or from anecdote. We do not stock a Thoroughbred Labs RAD-150; the \u003ca href=\"\/collections\/rad-150\"\u003eRAD-150 collection\u003c\/a\u003e lists the brand we hold, and \u003ca href=\"\/blogs\/news\/rad-140-vs-rad-150-tlb-150\"\u003eRAD-140 vs RAD-150 (TLB-150)\u003c\/a\u003e covers the ester chemistry in more depth.\u003c\/p\u003e\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\u003cp\u003eIn sport the position is unambiguous. The WADA Prohibited List bans RAD-140 in and out of competition and names it among the examples in S1.2, other anabolic agents, so it would be expected to trigger a positive test in any tested sport. Every S1 substance is non-specified under the World Anti-Doping Code, which bears on sanctions, and athletes are strictly liable for their samples whether a finding came from deliberate use or a contaminated product.\u003c\/p\u003e\u003cp\u003eDetection times have been measured, though only after tiny exposures. A doping-control team at the German Sport University Cologne gave RAD-140 to adult male volunteers in six excretion studies of five people each and followed their urine by high-resolution LC-MS\/MS (Wagener et al., 2022). For the three single-application arms, the last sample still containing unchanged RAD-140 came at:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSingle amount given in the study\u003c\/th\u003e\n\u003cth\u003eLast detection of unchanged RAD-140 in urine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 microgram\u003c\/td\u003e\n\u003ctd\u003e212 hours (almost 9 days)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 micrograms\u003c\/td\u003e\n\u003ctd\u003e240 hours (10 days)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 micrograms\u003c\/td\u003e\n\u003ctd\u003e696 hours (29 days)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eNothing above 50 micrograms was tested, and the authors noted that studies with larger amounts are still needed, so these times cannot be read as the longest possible window. For a capsule product the position is: detectable, window not established.\u003c\/p\u003e\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\u003cp\u003eThoroughbred Labs' packaging is the only source for an expiry date, where one is printed, and we know of no published study of RAD-140's stability in capsules. Keep the container sealed in a cool, dry place, out of direct light and away from heat such as radiators or sunny windowsills. Capsule shells respond to humidity in both directions: damp air makes gelatine tacky, so capsules cling together and moisture can reach the fill, while very dry storage can leave shells cracked.\u003c\/p\u003e\u003cp\u003eGood laboratory practice for this pack:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLeave capsules in the manufacturer's container. The batch number printed on it is the only link between the capsules and any certificate.\u003c\/li\u003e\n\u003cli\u003eMark the dates of receipt and first opening on the label, and enter the batch in your lab records.\u003c\/li\u003e\n\u003cli\u003eWear nitrile gloves when handling capsules or their contents.\u003c\/li\u003e\n\u003cli\u003eSend surplus or expired material for disposal through your organisation's chemical waste arrangements.\u003c\/li\u003e\n\u003cli\u003eStore out of reach of children and animals, away from food and drink.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAndrogen receptor agonist\u003c\/strong\u003e: a compound that binds the androgen receptor and activates it, as testosterone does; RAD-140 is one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTissue selectivity\u003c\/strong\u003e: the design goal of a SARM, strong receptor activation in muscle and bone with weak activation in the prostate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCholestasis\u003c\/strong\u003e: reduced flow of bile from the liver, the pattern of injury described in several RAD-140 case reports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransaminases (AST and ALT)\u003c\/strong\u003e: enzymes released into the blood when liver cells are stressed or damaged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetention time\u003c\/strong\u003e: the point at which a compound emerges from a chromatography column, compared with a reference standard in an identity test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003em\/z\u003c\/strong\u003e: the mass-to-charge value a mass spectrometer assigns to an ion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent assay\u003c\/strong\u003e: measurement of how much compound a single unit, such as one capsule, holds, as distinct from its purity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBenzoate ester\u003c\/strong\u003e: a molecule joined to benzoic acid through an ester bond, which adds mass; RAD-150 is described as the benzoate ester of RAD-140.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-specified substance\u003c\/strong\u003e: a prohibited substance not regarded as likely to be taken for reasons other than performance; all S1 anabolic agents qualify.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarketing authorisation\u003c\/strong\u003e: the MHRA licence a product needs before it can be sold as a medicine in the UK.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/rad-140\"\u003eAll brands of RAD-140 (Testolone)\u003c\/a\u003e, compared on strength, pack size and batch testing\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eAll Thoroughbred Labs products\u003c\/a\u003e stocked at Free Muscle\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/rad-150\"\u003eRAD-150 (TLB-150)\u003c\/a\u003e and the wider \u003ca href=\"\/collections\/sarms\"\u003eSARMs range\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/blogs\/news\/rad-140-testolone-what-the-research-says\"\u003eRAD-140 (testolone): what the research says\u003c\/a\u003e, covering the liver injury case reports\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThis product is supplied for laboratory research use only. It is not a medicine, has not been evaluated by the MHRA, EMA or FDA, and is not for human consumption. Sold to adults aged 18 and over. Nothing on this page is medical, dosing or usage advice.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eReferences\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eMiller CP, et al. Design, Synthesis, and Preclinical Characterization of the Selective Androgen Receptor Modulator (SARM) RAD140. ACS Med Chem Lett. 2011;2(2):124-9. PMID: 24900290.\u003c\/li\u003e\n\u003cli\u003eLoRusso P, et al. A First-in-Human Phase 1 Study of a Novel Selective Androgen Receptor Modulator (SARM), RAD140, in ER+\/HER2- Metastatic Breast Cancer. Clin Breast Cancer. 2022;22(1):67-77. PMID: 34565686.\u003c\/li\u003e\n\u003cli\u003eVan Wagoner RM, et al. Chemical Composition and Labeling of Substances Marketed as Selective Androgen Receptor Modulators and Sold via the Internet. JAMA. 2017;318(20):2004-2010. PMID: 29183075.\u003c\/li\u003e\n\u003cli\u003eWagener F, et al. Human In Vivo Metabolism and Elimination Behavior of Micro-Dosed Selective Androgen Receptor Modulator RAD140 for Doping Control Purposes. Metabolites. 2022;12(7):666. PMID: 35888790.\u003c\/li\u003e\n\u003cli\u003eLeung K, et al. RAD-140 Drug-Induced Liver Injury. Ochsner J. 2022;22(4):361-365. PMID: 36561105.\u003c\/li\u003e\n\u003cli\u003eChong S, et al. Reversible Gynecomastia and Hypogonadism Due to Usage of Commercial Performance-Enhancing Supplement Use. JCEM Case Rep. 2024;2(8):luae148. PMID: 39145153.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980564194,"sku":null,"price":44.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/RAD.png?v=1789931429"},{"product_id":"thoroughbred-labs-research-system-bpc157-amp-tb500-capsule-ndash-thoroughbred-labs","title":"Thoroughbred Labs Research System — BPC-157 \u0026 TB-500","description":"\u003cp\u003eThe Thoroughbred Labs Research System pairing BPC-157 and TB-500 groups two capsule-form research peptides in one listing. BPC-157 is a synthetic gastric pentadecapeptide and TB-500 is a synthetic fragment of thymosin beta-4. Thoroughbred Labs lists the pack as 60 capsules. The manufacturer does not state a peptide content per capsule on this listing, so none is quoted. Supplied to adults for laboratory research only and not for human consumption. It is sold through \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eA bundle is a listing convenience only: it lets two compounds from one manufacturer be ordered in a single purchase. Nothing on this page claims that they act together or should be studied together, and Free Muscle publishes no stack or cycle guidance for any product. \"Research System\" is the manufacturer's product name, not a description of a method. The sections below take BPC-157 first and TB-500 second, and keep them apart throughout.\u003c\/p\u003e\u003ch2\u003eAbout the compounds in this research system\u003c\/h2\u003e\u003ch3\u003eBPC-157\u003c\/h3\u003e\u003cp\u003eBPC-157 is a synthetic fifteen-amino-acid peptide based on a sequence from a human gastric protein. Its sequence is GEPPPGKPADDAGLV. Almost all published work is rodent and cell research, largely from one Croatian group, covering animal models of gut, tendon, muscle and vascular injury. No controlled human trial has been published, and oral absorption of any peptide is unproven. WADA lists it under S0 (non-approved substances). Compare brands on the \u003ca href=\"\/collections\/bpc-157\"\u003eBPC-157 collection page\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eTB-500 (Thymosin Beta-4 fragment)\u003c\/h3\u003e\u003cp\u003eTB-500 is the trade name for a synthetic fragment of thymosin beta-4, a 43-amino-acid actin-binding peptide present in most human and animal cells. Reviews of thymosin beta-4 cover preclinical wound, corneal and cardiac repair models and early clinical trials of the full peptide. TB-500 itself has no published human data. WADA names thymosin beta-4 and its derivatives, including TB-500, under S2. Compare brands on the \u003ca href=\"\/collections\/tb-500\"\u003eTB-500 (Thymosin Beta-4 fragment) collection page\u003c\/a\u003e.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eBPC-157\u003c\/th\u003e\n\u003cth\u003eThymosin beta-4 and TB-500\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChain length\u003c\/td\u003e\n\u003ctd\u003e15 residues\u003c\/td\u003e\n\u003ctd\u003eParent protein 43 residues; the fragment found in TB-500 is 7 residues, Ac-LKKTETQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular formula (PubChem)\u003c\/td\u003e\n\u003ctd\u003eC62H98N16O22\u003c\/td\u003e\n\u003ctd\u003eC212H350N56O78S (parent protein)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular weight\u003c\/td\u003e\n\u003ctd\u003e1419.5 g\/mol\u003c\/td\u003e\n\u003ctd\u003eAbout 4,963 g\/mol for the parent; under 1,000 g\/mol for the fragment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAS number\u003c\/td\u003e\n\u003ctd\u003e137525-51-0\u003c\/td\u003e\n\u003ctd\u003eNone held in our PubChem record\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePubChem CID\u003c\/td\u003e\n\u003ctd\u003e9941957\u003c\/td\u003e\n\u003ctd\u003e45382195 (parent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat the published research reports\u003c\/h3\u003e\u003cp\u003eThe BPC-157 citation below is a 2016 review written by the Zagreb researchers who first described the peptide. It gathers their rodent work on the gut, brain and blood vessels; independent replication is its main gap. The thymosin beta-4 citation is a 2012 review by Goldstein and colleagues, covering actin binding, cell movement and the skin, eye and heart programmes then in progress. Both reviews concern the peptides in general, delivered by routes other than capsules, and neither is a claim about this product.\u003c\/p\u003e\u003cp\u003eTwo analytical papers, covered under detection below, describe what products sold under these names actually contained. Both peptides here are in capsule form. Our article \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003eDo oral peptides actually work?\u003c\/a\u003e sets out why oral bioavailability of peptides is an open question and what that means for how this format is studied. Longer reviews are in \u003ca href=\"\/blogs\/news\/bpc-157-what-research-shows\"\u003eBPC-157: what the research actually shows\u003c\/a\u003e and the \u003ca href=\"\/blogs\/news\/tb-500-thymosin-beta-4-research-guide\"\u003eTB-500 and thymosin beta-4 research guide\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eThis listing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: Thoroughbred Labs (third-party brand, Muscle Market)\u003c\/li\u003e\n\u003cli\u003eCompounds: BPC-157 and TB-500 (thymosin beta-4 fragment)\u003c\/li\u003e\n\u003cli\u003eForm and pack size: 60 capsules, as listed by the manufacturer\u003c\/li\u003e\n\u003cli\u003eSplit between the two peptides: not broken down on the listing\u003c\/li\u003e\n\u003cli\u003ePeptide content per capsule: not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003eTotal per pack: cannot be calculated without a stated strength\u003c\/li\u003e\n\u003cli\u003eCOA: only where Thoroughbred Labs supplies one for the batch held\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThoroughbred Labs also sells each peptide on its own, as \u003ca href=\"\/products\/thoroughbred-labs-bpc157-peptide-capsule-ndash-thoroughbred-labs\"\u003eThoroughbred Labs BPC-157 capsules\u003c\/a\u003e and \u003ca href=\"\/products\/thoroughbred-labs-tb500-peptide-capsule-ndash-thoroughbred-labs\"\u003eThoroughbred Labs TB-500 capsules\u003c\/a\u003e. None of the three states a strength, so they cannot be compared on milligrams; \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003eprice per milligram\u003c\/a\u003e explains why that matters.\u003c\/p\u003e\u003ch2\u003eBPC-157 and TB-500 in the UK: buying, legal status and what to check\u003c\/h2\u003e\u003cp\u003eSearches such as \"BPC157 TB500 UK\" and \"BPC 157 UK legal\" ask whether the peptides can be sold here, and how to tell a documented listing from an anonymous one.\u003c\/p\u003e\u003ch3\u003eWhere the law stands\u003c\/h3\u003e\u003cp\u003eNone of the compounds on this page is a licensed medicine in the United Kingdom, none has been assessed by the MHRA and none is an authorised food supplement. Neither peptide appears in the controlled drugs legislation. Free Muscle supplies them to adults aged 18 and over for laboratory research only. They are not for human consumption. No medicine licensed in the UK contains either peptide. BPC-157 is listed by WADA under S0 and TB-500 under S2. The \u003ca href=\"\/blogs\/news\/tb-500-thymosin-beta-4-research-guide\"\u003eTB-500 research guide\u003c\/a\u003e sets out the regulatory background for that peptide in more detail.\u003c\/p\u003e\u003ch3\u003eQuestions to put to any seller of a two-peptide pack\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich peptides, in which containers?\u003c\/strong\u003e The listing should name both compounds, not only a product nickname.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow much of each?\u003c\/strong\u003e A stated amount per capsule for each peptide, or a plain admission that the maker gives none.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich batch?\u003c\/strong\u003e A lot number on every container, since analytical results belong to a batch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested by whom?\u003c\/strong\u003e A certificate for that batch from a named laboratory, with a result for each peptide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold on what terms?\u003c\/strong\u003e Adults only, research use stated, and no directions for use or promised outcomes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivered how?\u003c\/strong\u003e Tracked delivery, discreet packaging and written returns terms from a traceable company.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eHow this Thoroughbred Labs pack answers them\u003c\/h3\u003e\u003cp\u003eFreeMuscle LTD is a UK company in Scunthorpe. The manufacturer and both compounds are named, sales are limited to adults, and this page gives no directions for use. Every order goes by free tracked UK delivery in plain packaging; orders placed before 2pm Monday to Friday are processed the same working day, EU delivery takes 3 to 7 working days, and unopened items can be returned within 30 days. Two answers depend on Thoroughbred Labs: the listing gives no strength for either peptide, and a batch certificate exists only where the manufacturer has supplied one for the lot we hold. The \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e expands on each question.\u003c\/p\u003e\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\u003cp\u003eBoth peptides are sold in three broad formats: capsules or tablets, freeze-dried powder in sealed vials, and occasionally ready-made solutions. The published research does not map neatly onto any of them. BPC-157 studies in rats mostly gave the peptide by injection, with some Zagreb experiments adding it to drinking water. Thymosin beta-4 work used intravenous infusion, eye drops, gels applied to skin and injection in animals. Nobody has published a measurement of either peptide in human blood after a capsule was swallowed, so the search \"BPC 157 capsules vs injection\" has no answer in human data. The routes used in each study are set out in \u003ca href=\"\/blogs\/news\/bpc-157-capsules-vs-injection-what-studies-used\"\u003eBPC-157 capsules vs injection: what the studies used\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eThe obstacle for a swallowed peptide is chemical. Stomach acid unfolds proteins and pepsin begins cutting them, then pancreatic enzymes and the peptidases lining the small intestine finish the job, and an intact peptide would still have to cross the gut wall. The Zagreb group reports that BPC-157 withstands human gastric juice in its own tests; nothing comparable has been reported for the TB-500 fragment, whose two adjacent lysine residues are typical cleavage points for trypsin.\u003c\/p\u003e\u003cp\u003eAs materials, dry powder in a sealed shell or vial generally keeps better than peptide in water, and a capsule's content depends on how evenly the peptide was blended with filler. None of this implies that any format produces an effect.\u003c\/p\u003e\u003ch2\u003eBPC-157 compared with TB-500\u003c\/h2\u003e\u003cp\u003e\"TB 500 vs BPC 157\" is the comparison most often searched for these two. They share a market category and very little else.\u003c\/p\u003e\u003ch3\u003eOrigin and structure\u003c\/h3\u003e\u003cp\u003eBPC-157 was derived from a protein isolated in gastric juice; its 15 residues are rich in proline and include three aspartate and glutamate residues, which make it acidic. TB-500 is built on residues 17 to 23 of thymosin beta-4, the stretch of the parent protein that binds actin, with an acetyl group capping its start. At under 1,000 g\/mol the fragment is smaller than BPC-157 at 1419.5 g\/mol.\u003c\/p\u003e\u003ch3\u003eEvidence base\u003c\/h3\u003e\u003cp\u003eThe two literatures grew in different ways. BPC-157 research is concentrated in one university network and is almost entirely rodent and cell work, with no randomised human trial published. Thymosin beta-4 has been studied by many independent laboratories and taken into sponsored clinical programmes using the full protein, none of which has yet led to an approved medicine. No study has ever compared BPC-157 and TB-500 directly, so neither can be ranked above the other.\u003c\/p\u003e\u003ch3\u003eRegulation and sport\u003c\/h3\u003e\u003cp\u003eIn the UK both are unlicensed research compounds without MHRA, EMA or FDA approval. Their WADA sections differ: BPC-157 is in S0 because it has no approval for human therapeutic use, while TB-500 falls in S2 because the list names thymosin beta-4 and its derivatives. The practical result is identical, as both are prohibited at all times. Brands are compared on the \u003ca href=\"\/collections\/bpc-157\"\u003eBPC-157 collection\u003c\/a\u003e and \u003ca href=\"\/collections\/tb-500\"\u003eTB-500 collection\u003c\/a\u003e pages, and the wider peptide class is discussed in \u003ca href=\"\/blogs\/news\/sarms-vs-peptides-choosing-by-goal\"\u003eSARMs vs peptides\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\u003cp\u003eThoroughbred Labs is a third-party brand sold through Muscle Market. For third-party brands we display a certificate of analysis only where the manufacturer supplies one for the exact batch we hold; if none is shown, none has been supplied and we do not substitute a generic document. Free Muscle-brand products, by contrast, are assayed batch by batch at Janoshik Analytical, with the certificate sent on request by email, as for our own \u003ca href=\"\/products\/tb-500-thymosin-beta-4-peptide-free-muscle\"\u003eFree Muscle TB-500\u003c\/a\u003e. That testing does not extend to Thoroughbred Labs. Our \u003ca href=\"\/pages\/lab-tests\"\u003elab testing page\u003c\/a\u003e explains what a certificate shows.\u003c\/p\u003e\u003cp\u003eA pack with two peptides needs evidence for two identities, so a report that names only one compound covers only half of it. Points to look for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity for each peptide.\u003c\/strong\u003e HPLC matches a peak to the retention time of a reference standard; LC-MS adds a measured mass. A BPC-157 result should sit at about 1419.5 g\/mol. For TB-500 the mass shows which molecule is present: under 1,000 g\/mol fits the acetylated fragment, around 4,963 g\/mol the full protein.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity percentage.\u003c\/strong\u003e How much of the detected signal belongs to the named peptide rather than synthesis by-products. It says nothing about quantity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent.\u003c\/strong\u003e The only field that could supply the strength this listing omits, ideally per capsule and stating whether net peptide or total powder was measured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch number and test date.\u003c\/strong\u003e The lot on the report must match the lot on the container, and the date shows how current the result is.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor this brand a gap has a direct consequence: no mass leaves the TB-500 identity open, no content line leaves both strengths unknown, and no batch number means the report cannot be tied to the capsules in hand. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e with the batch number and we will say what documentation exists for current stock. \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003eHow to read a certificate of analysis\u003c\/a\u003e works through a full example.\u003c\/p\u003e\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\u003cp\u003eUnder the World Anti-Doping Code, applied in the UK by UK Anti-Doping, both peptides in this pack are prohibited. BPC-157 sits in S0 and TB-500 in S2, and both classes are banned in and out of competition. Strict liability applies: an athlete answers for whatever a sample contains.\u003c\/p\u003e\u003cp\u003eLaboratories have published detection methods for each peptide. For TB-500, the Ghent doping control laboratory identified Ac-LKKTETQ by high-resolution mass spectrometry, synthesised it as a reference material and suggested a plasma and urine detection route. For BPC-157, the Salt Lake City laboratory validated a urine method with a limit of detection of 0.1 ng\/mL, showed the peptide remained stable in urine for at least four days, and added a stable metabolite as a second marker to improve specificity. Neither study followed people after exposure, so no human detection window has been established for either peptide. The accurate position is: detectable, window not established.\u003c\/p\u003e\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\u003cp\u003eNo stability study has been published for BPC-157 or TB-500 in capsule form, so the manufacturer's expiry or best-before date, where printed, is the limit to work to. Moisture drives hydrolysis and softens capsule shells, heat speeds degradation, and air and light encourage oxidation. Thymosin beta-4 carries a methionine residue that oxidises readily; the TB-500 fragment does not include it, but its lysine-rich sequence attracts water.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eKeep the container firmly closed in a cool, dark, dry cupboard, away from radiators, steam and sunlight.\u003c\/li\u003e\n\u003cli\u003eLeave any desiccant in place. A refrigerated container should reach room temperature before it is opened, so condensation does not form on the contents.\u003c\/li\u003e\n\u003cli\u003eKeep capsules in their original container. The printed lot number is the only link to a certificate, and only unopened packs qualify for the 30-day return.\u003c\/li\u003e\n\u003cli\u003eWork with opened capsules as you would any laboratory reagent: wear gloves, keep them apart from food and drink and out of reach of children and pets, and send unwanted material for chemical waste disposal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePentadecapeptide\u003c\/strong\u003e: a peptide of fifteen amino acids, the class to which BPC-157 belongs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThymosin beta-4\u003c\/strong\u003e: a 43-amino-acid protein that binds actin inside cells; the parent of TB-500.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid-phase peptide synthesis\u003c\/strong\u003e: the standard laboratory method of building a peptide one residue at a time on a resin support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBioavailability\u003c\/strong\u003e: the fraction of a substance that reaches the circulation intact after it is given by a particular route.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetention time\u003c\/strong\u003e: the point at which a compound emerges from an HPLC column; matching it to a reference standard is the first identity check.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC-MS\u003c\/strong\u003e: liquid chromatography combined with mass spectrometry, which separates compounds and then measures their mass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit of detection\u003c\/strong\u003e: the smallest amount a test can tell apart from nothing, 0.1 ng\/mL for the BPC-157 urine method cited below.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS0 and S2\u003c\/strong\u003e: the two WADA list sections relevant here, the first catching substances with no approval for human therapy, the second peptide hormones, growth factors and their relatives.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/bpc-157\"\u003eBPC-157 collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/tb-500\"\u003eTB-500 (Thymosin Beta-4) collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eThoroughbred Labs brand page\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/peptides\"\u003ePeptides collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/market-bundles\"\u003eBundles collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSupplied for laboratory research use only. Not a medicine, not evaluated by the MHRA, EMA or FDA, and not for human consumption. Buyers must be 18 or over. Nothing on this page is medical or dosing advice or a recommendation to use, stack or cycle any compound; research summaries describe findings in study participants or animals, not claims about this product.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eReferences\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eSikiric P, et al. Brain-gut Axis and Pentadecapeptide BPC 157: Theoretical and Practical Implications. Curr Neuropharmacol. 2016;14(8):857-865. PMID: 27138887.\u003c\/li\u003e\n\u003cli\u003eGoldstein AL, et al. Thymosin beta4: a multi-functional regenerative peptide. Basic properties and clinical applications. Expert Opin Biol Ther. 2012;12(1):37-51. PMID: 22074294.\u003c\/li\u003e\n\u003cli\u003eEsposito S, et al. Synthesis and characterization of the N-terminal acetylated 17-23 fragment of thymosin beta 4 identified in TB-500, a product suspected to possess doping potential. Drug Test Anal. 2012;4(9):733-8. PMID: 22962027.\u003c\/li\u003e\n\u003cli\u003eCox HD, et al. Detection and in vitro metabolism of the confiscated peptides BPC 157 and MGF R23H. Drug Test Anal. 2017;9(10):1490-1498. PMID: 28035768.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980793570,"sku":null,"price":74.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/wolverine_stack_76843378-86b0-45d7-94f0-701509583091.png?v=1789931431"},{"product_id":"thoroughbred-labs-research-system-slu-pp-332-amp-5-amino-1mq-ndash-thoroughbred-labs","title":"Thoroughbred Labs Research System — SLU-PP-332 \u0026 5-Amino-1MQ","description":"\u003cp\u003eThe \u003cstrong\u003eThoroughbred Labs Research System\u003c\/strong\u003e pairing SLU-PP-332 and 5-Amino-1MQ places two of the newest and least characterised compounds in this market in one listing. SLU-PP-332 is an oestrogen-related receptor agonist and 5-Amino-1MQ is an NNMT inhibitor. Thoroughbred Labs lists the pack as 60 capsules and does not state a strength per capsule, so we do not quote one. It is part of the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range, supplied to adults aged 18 and over for laboratory research only, and not for human consumption.\u003c\/p\u003e\n\u003cp\u003eA bundle is a listing convenience only: it lets separately packaged products from one manufacturer be ordered in a single purchase. Nothing on this page claims that they act together or should be studied together, and Free Muscle publishes no stack or cycle guidance for any product. Each compound is described separately below.\u003c\/p\u003e\n\u003ch2\u003eAbout the compounds in this research system\u003c\/h2\u003e\n\u003ch3\u003eSLU-PP-332\u003c\/h3\u003e\n\u003cp\u003eSLU-PP-332 is a synthetic pan-agonist of the oestrogen-related receptors ERR alpha, beta and gamma. In a 2023 study in mice it induced a gene-expression pattern resembling acute aerobic exercise and increased running endurance (Billon et al., 2023). Every published study is preclinical and most come from the discovering group, led by Thomas Burris and John Walker. There is no human data, no toxicology package and no approval anywhere. Compare brands on the \u003ca href=\"\/collections\/slu-pp-332\"\u003eSLU-PP-332 collection page\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003e5-Amino-1MQ\u003c\/h3\u003e\n\u003cp\u003e5-Amino-1MQ (5-amino-1-methylquinolinium) is a small-molecule inhibitor of nicotinamide N-methyltransferase (NNMT), an enzyme more active in fat tissue during obesity. In a 2018 study, diet-induced obese mice treated with the compound had lower body weight and white fat mass than untreated obese controls (Neelakantan et al., 2018). That is the extent of the in vivo literature on which this page relies: no human studies, no safety profile, no approval anywhere. Compare brands on the \u003ca href=\"\/collections\/5-amino-1mq\"\u003e5-Amino-1MQ collection page\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eChemical identifiers side by side\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIdentifier\u003c\/th\u003e\n\u003cth\u003eSLU-PP-332\u003c\/th\u003e\n\u003cth\u003e5-Amino-1MQ\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePubChem CID\u003c\/td\u003e\n\u003ctd\u003e5338394\u003c\/td\u003e\n\u003ctd\u003e950107\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAS number\u003c\/td\u003e\n\u003ctd\u003e303760-60-3\u003c\/td\u003e\n\u003ctd\u003e685079-15-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormula\u003c\/td\u003e\n\u003ctd\u003eC18H14N2O2 (neutral molecule)\u003c\/td\u003e\n\u003ctd\u003eC10H11N2+ (cation, sold as a salt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular weight\u003c\/td\u003e\n\u003ctd\u003e290.3\u003c\/td\u003e\n\u003ctd\u003e159.21 (ion only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystematic name\u003c\/td\u003e\n\u003ctd\u003e4-hydroxy-N-[(E)-naphthalen-2-ylmethylideneamino]benzamide\u003c\/td\u003e\n\u003ctd\u003e1-methylquinolin-1-ium-5-amine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eOne is an uncharged hydrazone, the other a permanently charged ion, so they are analysed and stored with different concerns in mind. Neither is a peptide, a steroid or a SARM.\u003c\/p\u003e\n\u003ch2\u003eThis listing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Thoroughbred Labs (third-party brand, Muscle Market)\u003c\/li\u003e\n\u003cli\u003eCompounds: SLU-PP-332 and 5-Amino-1MQ\u003c\/li\u003e\n\u003cli\u003eForm and pack size: 60 capsules, as listed by the manufacturer\u003c\/li\u003e\n\u003cli\u003eStrength per capsule: not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003eCOA: only where Thoroughbred Labs supplies one for the batch held\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manufacturer's listing gives a single pack figure of 60 capsules and no strength for either compound, so the quantity of each compound in the order cannot be calculated from the listing. The labels on the packs, and any certificate supplied for the batch, are the only documents that can settle it. Both compounds are also sold on their own by the same brand, as \u003ca href=\"\/products\/thoroughbred-labs-slu\"\u003eThoroughbred Labs SLU-PP-332\u003c\/a\u003e and \u003ca href=\"\/products\/thoroughbred-labs-5-amino-1mq\"\u003eThoroughbred Labs 5-Amino-1MQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eSLU-PP-332 and 5-Amino-1MQ in the UK: buying, legal status and what to check\u003c\/h2\u003e\n\u003cp\u003eSearches such as \"SLU PP 332 UK buy\" and \"5 amino 1mq UK\" ask whether a UK shop may sell these compounds and how to judge a listing. A two-compound pack doubles the checks, since each applies to each compound.\u003c\/p\u003e\n\u003ch3\u003eThe legal position\u003c\/h3\u003e\n\u003cp\u003eNone of the compounds on this page is a licensed medicine in the United Kingdom, none has been assessed by the MHRA and none is an authorised food supplement. Neither is a controlled drug. No medicine containing either has been approved anywhere, so a listing that presents them as a slimming product, endurance aid or supplement describes something they cannot lawfully be. Free Muscle supplies them to adults aged 18 and over for laboratory research only. They are not for human consumption. Neither compound has been named individually on recent editions of the WADA list, but the list also prohibits any non-approved substance under S0, which covers both, and metabolic modulators are prohibited as a class. Our \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eSARMs research guide\u003c\/a\u003e has more background on how research compounds are regulated.\u003c\/p\u003e\n\u003ch3\u003eWhat a trustworthy listing for a two-compound pack shows\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth compounds named\u003c\/strong\u003e, with the manufacturer identified on the page and on each pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA stated strength for each compound\u003c\/strong\u003e, or an open statement that the manufacturer gives none. A figure for one compound says nothing about the other.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA batch number on each pack\u003c\/strong\u003e, since two products made separately rarely share a lot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA certificate per batch\u003c\/strong\u003e, or one certificate that reports both compounds and quotes both batch numbers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo directions and no promised outcomes\u003c\/strong\u003e, with research-use and 18+ terms stated plainly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA reachable UK seller\u003c\/strong\u003e with published delivery and returns terms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow this listing measures up\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer is named, and the absent strength is stated rather than estimated. Certificates depend on what Thoroughbred Labs has supplied for the batches in stock, and we say which applies. FreeMuscle LTD is a UK company based in Scunthorpe. Every UK order goes by free tracked delivery in plain packaging, orders placed before 2pm Monday to Friday are processed the same working day, EU delivery takes 3-7 working days, and unopened items may be returned within 30 days. Details are on the \u003ca href=\"\/pages\/shipping\"\u003eshipping\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003eguarantee\u003c\/a\u003e pages, and the \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e applies the same tests to any shop.\u003c\/p\u003e\n\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\n\u003cp\u003eBoth compounds are searched for as capsules, tablets and injectables, and the question behind those searches is whether the form matters. For each compound the published record answers only part of it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSLU-PP-332.\u003c\/strong\u003e The published mouse work gave the compound by injection, so no published result describes a swallowed capsule. The same research group has since reported a successor, SLU-PP-915, which it describes as orally active in mice (Billon et al., 2026); that finding concerns a different molecule and cannot be read across to SLU-PP-332. How much of a capsule's content survives the stomach and is absorbed has not been measured in any species.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Amino-1MQ.\u003c\/strong\u003e The 2018 mouse study also used injection. The compound carries a fixed positive charge, and charged molecules tend to cross the gut wall less readily than neutral ones, although that is a general rule rather than a measurement in people. No study has measured oral absorption in humans.\u003c\/p\u003e\n\u003cp\u003eNeither is a peptide, so the gut-enzyme argument in our article \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003edo oral peptides work\u003c\/a\u003e does not apply to them.\u003c\/p\u003e\n\u003cp\u003eThe measurable differences between forms are practical. A capsule holds a weighed fill of powder blended with filler, so the amount per capsule depends on fill weight and how evenly the blend was mixed. A liquid is measured by volume and relies on the compound staying dissolved and intact, which matters for a hydrazone that water can slowly split. None of this is a claim about effect.\u003c\/p\u003e\n\u003ch2\u003eSLU-PP-332 and 5-Amino-1MQ compared with SR9009\u003c\/h2\u003e\n\u003cp\u003eThe metabolic research compound most often searched in the same breath as these two is \u003ca href=\"\/collections\/sr9009\"\u003eSR9009 (Stenabolic)\u003c\/a\u003e, and the comparison has a genuine thread: SR9009 and SLU-PP-332 came out of laboratories led by the same researcher, Thomas Burris, a decade apart. SR9009 was described in 2012 at the Scripps Research Institute as a synthetic agonist of REV-ERB alpha and beta, nuclear receptors that link the body clock to metabolism (Solt et al., 2012).\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePoint of comparison\u003c\/th\u003e\n\u003cth\u003eSLU-PP-332\u003c\/th\u003e\n\u003cth\u003e5-Amino-1MQ\u003c\/th\u003e\n\u003cth\u003eSR9009\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget\u003c\/td\u003e\n\u003ctd\u003eERR alpha, beta and gamma (activated)\u003c\/td\u003e\n\u003ctd\u003eNNMT enzyme (inhibited)\u003c\/td\u003e\n\u003ctd\u003eREV-ERB alpha and beta (activated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirst in vivo report\u003c\/td\u003e\n\u003ctd\u003e2023, mice\u003c\/td\u003e\n\u003ctd\u003e2018, mice\u003c\/td\u003e\n\u003ctd\u003e2012, mice\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman trials\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA position\u003c\/td\u003e\n\u003ctd\u003eNot named; S0\u003c\/td\u003e\n\u003ctd\u003eNot named; S0\u003c\/td\u003e\n\u003ctd\u003eNamed in S4, metabolic modulators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUK status\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only\u003c\/td\u003e\n\u003ctd\u003eUnlicensed; research use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eMechanism.\u003c\/strong\u003e Each acts at a different point. SLU-PP-332 switches on the ERR family, which governs how many mitochondria cells build. SR9009 switches on REV-ERB, which represses clock genes and reshapes their daily rhythm. 5-Amino-1MQ is not a receptor ligand at all: it blocks an enzyme that methylates nicotinamide. None acts at the androgen receptor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEvidence.\u003c\/strong\u003e The 2012 SR9009 paper reported altered circadian behaviour and clock-gene patterns in mice, and lower fat mass with improved blood lipids and glucose in diet-induced obese mice. SR9009 has since shown what a longer record can reveal. In 2019 an independent group bred mice lacking both REV-ERB proteins and found that SR9009 still reduced cell viability and changed metabolism and gene transcription in their liver cells and stem cells, so its effects cannot all be credited to REV-ERB (Dierickx et al., 2019). SLU-PP-332 and 5-Amino-1MQ have not yet been through that kind of outside scrutiny, so their records are thinner still.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRegulation.\u003c\/strong\u003e All three are unlicensed in the UK and sold only for research. In sport SR9009 is prohibited by name, while the other two are caught by the catch-all S0 section. We do not rank research compounds by effect. The \u003ca href=\"\/blogs\/news\/sr9009-stenabolic-research-guide\"\u003eSR9009 research guide\u003c\/a\u003e covers it in depth, and the \u003ca href=\"\/products\/imuscle-stenabolic-sr-9009-60-10mg\"\u003eiMuscle Stenabolic SR-9009\u003c\/a\u003e listing is stocked.\u003c\/p\u003e\n\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\n\u003cp\u003eThoroughbred Labs is a third-party brand sold through Muscle Market. For third-party brands we display a certificate of analysis only where the manufacturer supplies one for the exact batch we hold; if none is shown, none has been supplied and we do not substitute a generic document. Free Muscle-brand products, by contrast, are assayed batch by batch at Janoshik Analytical, with the certificate sent on request by email. For a two-compound pack, check that the paperwork covers both, line by line:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich compound it reports.\u003c\/strong\u003e A certificate naming only SLU-PP-332 says nothing about the 5-Amino-1MQ in the same order, and the reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity by mass.\u003c\/strong\u003e HPLC matches a peak to a reference standard by retention time; LC-MS adds a measured mass. SLU-PP-332 should give an ion near m\/z 291 after gaining a proton. 5-Amino-1MQ is already charged and should appear near m\/z 159 as it is.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity percentage.\u003c\/strong\u003e The share of the chromatogram taken by the main peak. For SLU-PP-332, small extra peaks may be its hydrolysis products or its other geometric isomer. Purity describes the powder, not the amount per capsule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent per capsule.\u003c\/strong\u003e With no strength on the label, this is the only line that states a quantity. For 5-Amino-1MQ, check whether the figure counts the whole salt or the ion alone, since the two give different numbers for the same capsule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch number, laboratory and test date.\u003c\/strong\u003e The number must match the pack in front of you; the laboratory and date show who tested it and when.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA missing field has a plain meaning: no identity line means nothing confirms the compound, no content line leaves the quantity unknown, and a mismatched batch number means the document describes other stock. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e with both lot numbers and we will send what we hold or say there is nothing. Our \u003ca href=\"\/pages\/lab-tests\"\u003elab testing page\u003c\/a\u003e and the guide on \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a certificate of analysis\u003c\/a\u003e give worked examples.\u003c\/p\u003e\n\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\n\u003cp\u003eFor anyone bound by an anti-doping code, both compounds in this system are prohibited at all times, in and out of competition. Neither has appeared by name on recent editions of the WADA Prohibited List, but section S0 covers any pharmacological substance with no current approval for human therapeutic use, and neither has ever been approved.\u003c\/p\u003e\n\u003cp\u003eAnti-doping laboratories have already published in vitro studies of SLU-PP-332 metabolism, identifying metabolites by mass spectrometry that screening could target; one, from the UCLA Olympic Analytical Laboratory, was written explicitly for doping-control purposes (Avliyakulov et al., 2026). We found no comparable anti-doping study for 5-Amino-1MQ. What is missing for both is any excretion study in people, so no detection window has been established for either. The accurate position is detectable in principle, window not established. Under strict liability an athlete is responsible for any prohibited substance found in a sample, whatever its source.\u003c\/p\u003e\n\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\n\u003cp\u003eThoroughbred Labs has not published stability data for these capsules and no independent stability study exists for either compound, so the expiry date on each pack is the only stated limit. Chemistry points to different risks for each. The hydrazone bond in SLU-PP-332 can be split by water, faster in acid, and its extended ring system absorbs ultraviolet light. 5-Amino-1MQ, as an organic salt with an aromatic amino group, is prone to taking up moisture and to slow oxidation and discolouration in air and light.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeave each compound in the container it arrived in, reseal it straight after opening, and do not remove any drying sachet.\u003c\/li\u003e\n\u003cli\u003eChoose a shelf that stays cool, dry and dark with little temperature swing; bathrooms, kitchens and sunny sills are poor choices.\u003c\/li\u003e\n\u003cli\u003eKeep each pack with its own label, because each batch number links to its own certificate.\u003c\/li\u003e\n\u003cli\u003eSet aside capsules that have clumped or changed colour.\u003c\/li\u003e\n\u003cli\u003eStore where children and pets cannot reach, apart from anything edible, and treat unwanted capsules as chemical waste under normal laboratory rules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGlossary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOestrogen-related receptors (ERRs)\u003c\/strong\u003e: three orphan nuclear receptors, named for their resemblance to the oestrogen receptor, that steer mitochondrial and fuel-use genes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePan-agonist\u003c\/strong\u003e: an activator that works across a whole receptor family rather than one member; SLU-PP-332 is described this way because it reaches all three ERRs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNNMT\u003c\/strong\u003e: nicotinamide N-methyltransferase, the enzyme 5-Amino-1MQ inhibits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eREV-ERB\u003c\/strong\u003e: alpha and beta forms of a clock-controlled nuclear receptor that represses target genes; SR9009 was built to activate them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrazone\u003c\/strong\u003e: a carbon-nitrogen double bond joined to a second nitrogen, the link that water can split in SLU-PP-332.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuinolinium ion\u003c\/strong\u003e: the positively charged, methylated quinoline skeleton of 5-Amino-1MQ, which is why it is always sold paired with a counter-ion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003em\/z\u003c\/strong\u003e: mass-to-charge ratio, the value a mass spectrometer reports for an ion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS0 (non-approved substances)\u003c\/strong\u003e: the opening section of the WADA list, catching any drug not approved for human treatment even if it is never named.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict liability\u003c\/strong\u003e: in anti-doping, the athlete answers for what is in the sample; how it got there does not change the finding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/slu-pp-332\"\u003eSLU-PP-332 collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/5-amino-1mq\"\u003e5-Amino-1MQ collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/sr9009\"\u003eSR9009 collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eThoroughbred Labs brand page\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/market-bundles\"\u003eBundles collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/weight-loss\"\u003eMetabolic support collection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/slu-pp-332-and-5-amino-1mq-research-guide\"\u003eSLU-PP-332 and 5-Amino-1MQ research guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eSupplied for laboratory research use only. Not a medicine, not evaluated by the MHRA, EMA or FDA, and not for human consumption. Buyers must be 18 or over. Nothing on this page is medical or dosing advice or a recommendation to use, stack or cycle any compound; research summaries describe findings in study participants or animals, not claims about this product.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eBillon C, et al. Synthetic ERRalpha\/beta\/gamma Agonist Induces an ERRalpha-Dependent Acute Aerobic Exercise Response and Enhances Exercise Capacity. ACS Chem Biol. 2023;18(4):756-771. PMID: 36988910.\u003c\/li\u003e\n\u003cli\u003eNeelakantan H, et al. Selective and membrane-permeable small molecule inhibitors of nicotinamide N-methyltransferase reverse high fat diet-induced obesity in mice. Biochem Pharmacol. 2018;147:141-152. PMID: 29155147.\u003c\/li\u003e\n\u003cli\u003eSolt LA, et al. Regulation of circadian behaviour and metabolism by synthetic REV-ERB agonists. Nature. 2012;485(7396):62-68. PMID: 22460951.\u003c\/li\u003e\n\u003cli\u003eDierickx P, et al. SR9009 has REV-ERB-independent effects on cell proliferation and metabolism. Proc Natl Acad Sci U S A. 2019;116(25):12147-12152. PMID: 31127047.\u003c\/li\u003e\n\u003cli\u003eAvliyakulov NK, et al. Analysis and Identification of In Vitro Metabolites of Exercise Mimetic SLU-PP-332 ERRalpha\/beta\/gamma Agonist for Doping-Control Purposes. Drug Test Anal. 2026;18(3):439-450. PMID: 41688415.\u003c\/li\u003e\n\u003cli\u003eBillon C, et al. An orally active estrogen receptor-related receptor agonist, SLU-PP-915, enhances aerobic exercise capacity. J Pharmacol Exp Ther. 2026;393(1):103787. PMID: 41421047.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468980826338,"sku":null,"price":148.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/stack5_86866926-ecf4-4047-b242-37d52d6cd809.png?v=1789931432"},{"product_id":"thoroughbred-labs-slu","title":"Thoroughbred Labs SLU-PP-332","description":"\u003cp\u003e\u003cstrong\u003eThoroughbred Labs SLU-PP-332\u003c\/strong\u003e is a Thoroughbred Labs listing of SLU-PP-332, supplied as 60 capsules per pack; the manufacturer does not state a strength per capsule on the label. It is supplied through the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range for laboratory research only, is not for human consumption, and is sold to adults aged 18 and over. This page sets out what the published research on SLU-PP-332 reports, what the label documents and what it leaves out, how batch certificates are handled for Thoroughbred Labs products, and how the compound sits in UK law and in sport.\u003c\/p\u003e\n\u003ch2\u003eAbout SLU-PP-332\u003c\/h2\u003e\n\u003cp\u003eSLU PP 332, to give the common alternative spelling, is a synthetic compound that activates all three oestrogen-related receptors: ERR alpha, ERR beta and ERR gamma. Despite the name, these orphan nuclear receptors have nothing to do with the oestrogen receptor; in muscle and heart they control how many mitochondria cells build and how much fuel they oxidise. It came from the laboratories of Thomas Burris and John Walker, working at Saint Louis University and partner institutions, and its first full characterisation was published in 2023. It is the molecule behind recent exercise-in-a-pill headlines.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIdentifier\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePubChem CID\u003c\/td\u003e\n\u003ctd\u003e5338394\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAS number\u003c\/td\u003e\n\u003ctd\u003e303760-60-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular formula\u003c\/td\u003e\n\u003ctd\u003eC18H14N2O2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular weight\u003c\/td\u003e\n\u003ctd\u003e290.3 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystematic name\u003c\/td\u003e\n\u003ctd\u003e4-hydroxy-N-[(E)-naphthalen-2-ylmethylideneamino]benzamide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInChIKey\u003c\/td\u003e\n\u003ctd\u003eRNZIMBFHRXYRLL-XDHOZWIPSA-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAlthough it is sold beside peptides, SLU-PP-332 is a small organic molecule with no amino acids in it.\u003c\/p\u003e\n\u003ch3\u003eWhat the published research reports\u003c\/h3\u003e\n\u003cp\u003eThe first paper, in ACS Chemical Biology in 2023, reported that the compound increased mitochondrial function in a muscle cell line and, in mice, increased the proportion of oxidative type IIa muscle fibres and treadmill endurance; the authors reported that activation of ERR alpha specifically was critical for the endurance effect. In 2024 the group followed with diet-induced obese and ob\/ob mice, reporting higher energy expenditure and fatty acid oxidation, less fat mass and improved insulin sensitivity. Three of the authors of the first paper declared shareholdings in a company working on ERR-based therapeutics.\u003c\/p\u003e\n\u003cp\u003eTwo further mouse studies looked beyond muscle. In a 2024 Circulation paper, a Baylor College of Medicine team tested SLU-PP-332 and a second agonist, SLU-PP-915, in mice with heart failure induced by pressure overload; both compounds were associated with higher ejection fraction, less fibrosis and longer survival, and genetic experiments pointed to ERR gamma as the main mediator. One author declared a co-founder role in a company developing such compounds. In a 2023 study in the American Journal of Pathology, 21-month-old mice treated for eight weeks showed reversal of age-related albuminuria, podocyte loss and inflammatory markers in the kidney. Both are disease models in animals, not evidence about healthy people.\u003c\/p\u003e\n\u003cp\u003eThere is no human data of any kind, no human pharmacokinetic study, and no safety study in people. It is one of the newest compounds in this market and one of the least characterised. Nothing above is a claim about this product.\u003c\/p\u003e\n\u003ch2\u003eThis listing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eCompound: SLU-PP-332\u003c\/li\u003e\n\u003cli\u003eForm: Capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength: the manufacturer does not state the amount per capsule on the label, so we do not list one\u003c\/li\u003e\n\u003cli\u003eBatch certificate of analysis: shown where Thoroughbred Labs supplies one for the batch we hold\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause no strength is stated, the total quantity in the pack cannot be worked out from the label, and this listing cannot be compared with the \u003ca href=\"\/products\/biolab-metabolic-boost-slu-pp-332-100-mcg-60-caps\"\u003eBioLab 100 mcg\u003c\/a\u003e, \u003ca href=\"\/products\/biolab-metabolic-boost-slu-pp-332-200-mcg-60-caps\"\u003e200 mcg\u003c\/a\u003e or \u003ca href=\"\/products\/biolab-metabolic-boost-slu-pp-332-500-mcg-60-caps\"\u003e500 mcg\u003c\/a\u003e listings on milligrams per pack. Thoroughbred Labs also sells SLU-PP-332 in a two-product pack with 5-Amino-1MQ, listed separately as the \u003ca href=\"\/products\/thoroughbred-labs-research-system-slu-pp-332-amp-5-amino-1mq-ndash-thoroughbred-labs\"\u003eResearch System\u003c\/a\u003e; each compound in it is a separate research substance, and we make no claim about using them together.\u003c\/p\u003e\n\u003ch2\u003eSLU-PP-332 in the UK: buying, legal status and what to check\u003c\/h2\u003e\n\u003ch3\u003eWhere the law stands\u003c\/h3\u003e\n\u003cp\u003eSLU-PP-332 is not a licensed medicine in the UK, has not been assessed by the MHRA, and is not an authorised food supplement. It is not a controlled drug under the Misuse of Drugs Act. No medicine containing it has been approved by any regulator, so no UK prescriber or pharmacy can supply it as a treatment, and any listing that sells it as a supplement, a slimming aid or an endurance product is describing something it cannot lawfully be. It may be sold to adults for laboratory research, which is the only basis for this listing. It is not for human consumption. In sport it is prohibited at all times under WADA section S0, covered below. Our \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eresearch guide\u003c\/a\u003e covers the wider legal picture for research compounds.\u003c\/p\u003e\n\u003ch3\u003eSigns of a documented listing\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eA manufacturer is named on the pack and on the page, and the UK seller can be contacted.\u003c\/li\u003e\n\u003cli\u003eThe stated strength per capsule, with its unit, appears on the label, or the seller says openly that none is stated, as we do here.\u003c\/li\u003e\n\u003cli\u003eA lot number is printed on the tub, and any certificate offered carries that same number.\u003c\/li\u003e\n\u003cli\u003eThe listing gives no directions for use, no quantities per day and no promised outcomes; research-use and 18+ terms are stated.\u003c\/li\u003e\n\u003cli\u003eDelivery is tracked, the packaging is plain, and the returns terms are published.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eHow this listing measures up\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer is named, and the missing strength is stated plainly rather than filled with a guess. The certificate position depends on what Thoroughbred Labs has supplied for the batch in stock, and a certificate is shown only where one is held for that batch. FreeMuscle LTD is a UK company based in Scunthorpe. UK orders go by free tracked delivery in plain packaging, orders placed before 2pm Monday to Friday are processed the same working day, EU delivery takes 3-7 working days, and unopened items can be returned within 30 days (see \u003ca href=\"\/pages\/shipping\"\u003edelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e). The \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e goes into more detail.\u003c\/p\u003e\n\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\n\u003cp\u003eSearches for \"SLU-PP-332 capsules\" and \"SLU-PP-332 injectable\" ask whether form matters. No published study reports results for SLU-PP-332 given as a swallowed capsule. In a 2026 paper its developers stated that SLU-PP-332 lacks oral bioavailability, and they described a chemically distinct agonist, SLU-PP-915, as orally bioavailable in mice. How much of a capsule's content would survive digestion and absorption in any species has not been measured, so we draw no conclusion about form and effect.\u003c\/p\u003e\n\u003cp\u003ePeptides face a different problem: protein-digesting enzymes in the gut break most of them down, as our article \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003edo oral peptides work\u003c\/a\u003e explains. That argument does not transfer to SLU-PP-332, which is not a peptide; its limitation, as the developers describe it, is a lack of oral bioavailability. The hydrazone link can also be split by acid and water, a point that bears on stomach conditions and on storage alike.\u003c\/p\u003e\n\u003cp\u003eThe forms do differ in ways that can be measured on the bench:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapsules\u003c\/strong\u003e contain a weighed fill of powder, usually the active blended with an inert carrier. The quantity per capsule depends on the fill weight and the evenness of the blend, and here, with no label strength, only a content assay can say what it is.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolutions\u003c\/strong\u003e are measured by volume. Their accuracy depends on the compound staying dissolved and chemically intact, and a hydrazone held in water is exposed to slow hydrolysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSLU-PP-332 compared with Cardarine\u003c\/h2\u003e\n\u003cp\u003eThe related compound people search for most often next to SLU-PP-332 is \u003ca href=\"\/collections\/cardarine\"\u003eCardarine (GW-501516)\u003c\/a\u003e. Both are nuclear-receptor agonists that changed running capacity in mice, hence the shared exercise mimetic label, but their receptors, chemistry and histories differ.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSLU-PP-332\u003c\/th\u003e\n\u003cth\u003eCardarine (GW-501516)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceptor\u003c\/td\u003e\n\u003ctd\u003eERR alpha, beta and gamma\u003c\/td\u003e\n\u003ctd\u003ePPAR-delta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical class\u003c\/td\u003e\n\u003ctd\u003eAcyl hydrazone\u003c\/td\u003e\n\u003ctd\u003ePhenoxyacetic acid with a thiazole ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormula and mass\u003c\/td\u003e\n\u003ctd\u003eC18H14N2O2, 290.3 g\/mol\u003c\/td\u003e\n\u003ctd\u003eC21H18F3NO3S2, 453.5 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeveloped by\u003c\/td\u003e\n\u003ctd\u003eUniversity researchers, first paper 2023\u003c\/td\u003e\n\u003ctd\u003ePharmaceutical industry, around 2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman studies\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eShort early-phase trials, mostly on blood lipids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLong-term toxicology\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003eRodent cancer findings; development stopped in 2007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA section\u003c\/td\u003e\n\u003ctd\u003eProhibited at all times; S0 at minimum as a non-approved substance\u003c\/td\u003e\n\u003ctd\u003eS4, hormone and metabolic modulators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eMechanism.\u003c\/strong\u003e ERRs and PPAR-delta both belong to the nuclear receptor superfamily and both switch on genes for fat oxidation and mitochondrial capacity in muscle, but they are separate proteins with separate binding pockets. Neither compound is a variant of the other.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEvidence.\u003c\/strong\u003e Cardarine has the longer record. It reached small human trials measuring blood lipids, and its commercial development ended after long-term rodent studies found tumours in several tissues. SLU-PP-332 has a handful of mouse and cell papers and no human or long-term toxicology data at all. Fewer reported problems for the newer compound reflect how little it has been studied, not a better profile.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRegulation.\u003c\/strong\u003e In the UK both are unlicensed and may be sold only for research to adults. In sport both are prohibited at all times, under different sections of the WADA list. No study has compared the two directly, and we do not rank research compounds by effect. Its history is in \u003ca href=\"\/blogs\/news\/cardarine-gw-501516-what-happened-in-development\"\u003ewhat happened in Cardarine's development\u003c\/a\u003e, and a \u003ca href=\"\/products\/thoroughbred-labs-gw501516\"\u003eThoroughbred Labs GW-501516\u003c\/a\u003e listing is also stocked.\u003c\/p\u003e\n\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\n\u003cp\u003eBatches sold under the Free Muscle name are each assayed by Janoshik Analytical, an independent laboratory, and the certificate is emailed on request. Thoroughbred Labs is a third-party manufacturer, so a certificate appears here only when Thoroughbred Labs has supplied one for the exact batch on our shelf. A PDF without a batch number does not qualify, and we will not pass one off as a batch certificate. You can contact us with the product name and lot number to ask what is held for that batch. For this listing it is the only document that could put a figure on the content of each capsule. Fields to look for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity method.\u003c\/strong\u003e HPLC with UV detection matches a peak to a reference standard by retention time, which is indirect. LC-MS adds the mass: SLU-PP-332 has a monoisotopic mass of about 290.1, so the protonated ion should appear close to m\/z 291.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity as a percentage.\u003c\/strong\u003e The main peak's share of the total signal. Secondary peaks may be the other geometric isomer of the hydrazone or its hydrolysis products, the parent hydrazide and aldehyde.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmount per capsule.\u003c\/strong\u003e The line that answers the question the label leaves open. Without it, purity alone says nothing about quantity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch or lot number.\u003c\/strong\u003e It should match the number on the tub in front of you.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory name and test date.\u003c\/strong\u003e These tell you who did the work and whether the result is recent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach gap has a specific meaning. With no identity line, nothing independent confirms the compound; with no content line, the quantity per capsule remains unknown for this product; with a batch number that does not match, the document describes different material. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e with your lot number, and see \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a certificate of analysis\u003c\/a\u003e and our \u003ca href=\"\/pages\/lab-tests\"\u003elab tests page\u003c\/a\u003e for a worked example.\u003c\/p\u003e\n\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\n\u003cp\u003eAs a substance with no current approval for human therapeutic use, SLU-PP-332 falls at minimum under WADA section S0 (non-approved substances) and is prohibited at all times in sport; the list also has a section for hormone and metabolic modulators, so check the current edition for any specific entry. Anti-doping laboratories have already published in vitro work on its detection. In a 2026 study, a Los Angeles doping-control laboratory incubated the compound with pooled human liver S9 fractions and used liquid chromatography with high-resolution mass spectrometry to identify 22 metabolites, hydroxylated and glucuronide or sulfate conjugated forms among them, several of which the authors proposed as candidate targets for doping control. They noted that further work is needed to confirm the structures.\u003c\/p\u003e\n\u003cp\u003eNo study has measured how long SLU-PP-332 or its metabolites remain in human urine or blood, because it has never been given to people under study conditions. The correct summary is that it is detectable in principle and that no detection window has been established. Under strict liability, an athlete answers for any prohibited substance in a sample. Anyone subject to anti-doping rules should consult the current list, which WADA revises every year.\u003c\/p\u003e\n\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\n\u003cp\u003eThoroughbred Labs has not published stability data for these capsules, and no independent stability study of SLU-PP-332 exists, so any expiry date printed on the tub is the only stated limit. The structure of the molecule still indicates what to avoid. The hydrazone bond is the weak point: water can cleave it back to its two starting materials, and acid speeds the reaction. The extended aromatic system absorbs ultraviolet light, which can convert the molecule between its two geometric forms.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeep the tub sealed, in its original container, in a cool, dry and dark place with a steady temperature, away from radiators, sunlight and steamy rooms.\u003c\/li\u003e\n\u003cli\u003eA chilled tub should warm up with the lid on before opening, to avoid condensation.\u003c\/li\u003e\n\u003cli\u003eHandle opened capsules with gloves, away from food and drink.\u003c\/li\u003e\n\u003cli\u003eStore out of reach of children and pets, and dispose of unwanted material as chemical waste in line with laboratory good practice.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGlossary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eERR alpha, beta and gamma\u003c\/strong\u003e: the three oestrogen-related receptors, nuclear receptors that regulate energy metabolism genes and do not bind oestrogen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNuclear receptor\u003c\/strong\u003e: a protein inside the cell that binds a small molecule and then switches particular genes on or off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgonist\u003c\/strong\u003e: a molecule that activates a receptor; a pan-agonist activates all members of a receptor family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEjection fraction\u003c\/strong\u003e: the share of blood pumped out of the heart's main chamber with each beat, a standard measure in heart failure research.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlbuminuria\u003c\/strong\u003e: albumin in the urine, used in animal and human studies as a marker of kidney damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrazone\u003c\/strong\u003e: a chemical group containing a carbon-nitrogen double bond attached to a second nitrogen, open to hydrolysis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC-MS\u003c\/strong\u003e: separation by liquid chromatography followed by mass measurement, the firmer of the two usual identity tests.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection S0\u003c\/strong\u003e: the WADA category for pharmacological substances with no current approval for human therapeutic use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/slu-pp-332\"\u003eAll brands of SLU-PP-332 we stock, compared\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eAll Thoroughbred Labs products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/slu-pp-332-and-5-amino-1mq-research-guide\"\u003eSLU-PP-332 and 5-Amino-1MQ: research guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/5-amino-1mq\"\u003e5-Amino-1MQ collection\u003c\/a\u003e and \u003ca href=\"\/collections\/cardarine\"\u003eCardarine collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/lab-tests\"\u003eBatch testing and certificates of analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis product is supplied for laboratory research use only. It has not been evaluated by the MHRA, EMA or FDA. It is not a medicine, not a food supplement and not for human consumption. Sold only to adults aged 18 and over. Nothing on this page is medical, dosing or usage advice, and descriptions of published studies are not claims about this product.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eBillon C, et al. Synthetic ERRalpha\/beta\/gamma Agonist Induces an ERRalpha-Dependent Acute Aerobic Exercise Response and Enhances Exercise Capacity. ACS Chem Biol. 2023;18(4):756-771. PMID: 36988910.\u003c\/li\u003e\n\u003cli\u003eBillon C, et al. A Synthetic ERR Agonist Alleviates Metabolic Syndrome. J Pharmacol Exp Ther. 2024;388(2):232-240. PMID: 37739806.\u003c\/li\u003e\n\u003cli\u003eXu W, et al. Novel Pan-ERR Agonists Ameliorate Heart Failure Through Enhancing Cardiac Fatty Acid Metabolism and Mitochondrial Function. Circulation. 2024;149(3):227-250. PMID: 37961903.\u003c\/li\u003e\n\u003cli\u003eWang XX, et al. Estrogen-Related Receptor Agonism Reverses Mitochondrial Dysfunction and Inflammation in the Aging Kidney. Am J Pathol. 2023;193(12):1969-1987. PMID: 37717940.\u003c\/li\u003e\n\u003cli\u003eAvliyakulov NK, et al. Analysis and Identification of In Vitro Metabolites of Exercise Mimetic SLU-PP-332 ERRalpha\/beta\/gamma Agonist for Doping-Control Purposes. Drug Test Anal. 2026;18(3):439-450. PMID: 41688415.\u003c\/li\u003e\n\u003cli\u003eBillon C, et al. An orally active estrogen receptor-related receptor agonist, SLU-PP-915, enhances aerobic exercise capacity. J Pharmacol Exp Ther. 2026;393(1):103787. PMID: 41421047.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468981186786,"sku":null,"price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/SLU.png?v=1789931434"},{"product_id":"thoroughbred-labs-tb500-peptide-capsule-ndash-thoroughbred-labs","title":"Thoroughbred Labs TB-500 Peptide Capsules","description":"\u003cp\u003e\u003cstrong\u003eThoroughbred Labs TB-500 Peptide Capsules\u003c\/strong\u003e is a listing of TB-500, a peptide based on thymosin beta-4, supplied as 60 capsules per pack; the manufacturer does not state a strength per capsule on the label. It is supplied through the \u003ca href=\"\/pages\/muscle-market\"\u003eMuscle Market\u003c\/a\u003e range for laboratory research only, is not for human consumption, and is sold to adults aged 18 and over. Below: what the published research on TB-500 and thymosin beta-4 reports, what the label documents, the UK legal and anti-doping position, how capsules differ from other formats, and how batch certificates are handled for Thoroughbred Labs products.\u003c\/p\u003e\n\u003ch2\u003eAbout TB-500\u003c\/h2\u003e\n\u003cp\u003eTB-500 is the name used in the research-compound market for synthetic peptides based on thymosin beta-4, a 43-amino-acid protein present in most human cells. Products sold as TB-500 may contain the full sequence or a shorter fragment around the actin-binding region; the label on this listing does not say which. Thymosin beta-4 binds monomeric actin and has been studied in cell migration, angiogenesis and wound repair models. It is a peptide, not a steroid and not a SARM: it has no steroid ring structure and does not act on the androgen receptor.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIdentifier\u003c\/th\u003e\n\u003cth\u003eThymosin beta-4 (parent protein)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e43 amino acids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular formula\u003c\/td\u003e\n\u003ctd\u003eC212H350N56O78S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMolecular weight\u003c\/td\u003e\n\u003ctd\u003eabout 4,963 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePubChem CID\u003c\/td\u003e\n\u003ctd\u003e45382195\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInChIKey\u003c\/td\u003e\n\u003ctd\u003eUGPMCIBIHRSCBV-UHFFFAOYSA-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActin-binding segment\u003c\/td\u003e\n\u003ctd\u003eresidues 17 to 23, LKKTETQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat the published research reports\u003c\/h3\u003e\n\u003cp\u003eA 2012 review by Goldstein and colleagues summarised the peptide's properties and the clinical programmes then under way in wounds, the cornea and cardiac repair. A 2010 randomised, placebo-controlled study gave intravenous pharmaceutical-grade thymosin beta-4 to healthy volunteers as single and repeated doses and reported no serious adverse events across the range tested; it was a tolerability study, not an efficacy study, and it used injection rather than a capsule. None of those programmes has produced an approved medicine, and no published human work shows that a peptide of this size survives oral administration.\u003c\/p\u003e\n\u003cp\u003eTwo analytical papers from 2012 describe what TB-500 products have actually contained. The doping control laboratory at Ghent University examined a TB-500 formulation by high-resolution mass spectrometry and identified the N-terminally acetylated 17-23 fragment of thymosin beta-4 in it. In the same year the racing laboratory of the Hong Kong Jockey Club described TB-500 as a veterinary preparation whose key ingredient was that acetylated seven-residue peptide, and published a method for finding it and its metabolites in horse urine and plasma. Both studies concern other products and animals, not this pack. Nothing above is a claim about this product.\u003c\/p\u003e\n\u003ch2\u003eThis listing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Thoroughbred Labs\u003c\/li\u003e\n\u003cli\u003eCompound: TB-500 (Thymosin Beta-4)\u003c\/li\u003e\n\u003cli\u003eForm: Capsules\u003c\/li\u003e\n\u003cli\u003ePack size: 60 capsules\u003c\/li\u003e\n\u003cli\u003eStrength: the manufacturer does not state the amount per capsule on the label, so we do not list one\u003c\/li\u003e\n\u003cli\u003eTotal per pack: cannot be calculated without a stated strength\u003c\/li\u003e\n\u003cli\u003eBatch certificate of analysis: shown where Thoroughbred Labs supplies one for the batch we hold\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWithout a per-capsule figure this pack cannot be compared on milligrams with any other TB-500 listing. Our article on \u003ca href=\"\/blogs\/news\/price-per-mg-compare-sarms-peptides\"\u003eprice per milligram\u003c\/a\u003e explains why that comparison matters when a label does give a number.\u003c\/p\u003e\n\u003ch2\u003eTB-500 in the UK: buying, legal status and what to check\u003c\/h2\u003e\n\u003cp\u003eSearches for \"buy TB 500 UK\" and \"TB 500 legal UK\" ask two things: may it be sold here, and how to tell a documented listing from an undocumented one.\u003c\/p\u003e\n\u003ch3\u003eThe legal position\u003c\/h3\u003e\n\u003cp\u003eTB-500 is not a licensed medicine in the UK, has not been assessed by the MHRA, and is not an authorised food supplement. It is not a controlled drug either. UK law turns on how a product is presented: anything offered to treat or prevent a condition is regulated as a medicine, and anything offered to be eaten must meet food law. TB-500 meets neither framework, so the only basis for this listing is supply for laboratory research to adults aged 18 and over, not for human consumption. No thymosin beta-4 medicine holds a UK marketing authorisation. Thymosin beta-4 and its derivatives, with TB-500 named as an example, are listed under section S2 (peptide hormones, growth factors and related substances) of the WADA Prohibited List and are prohibited at all times in sport. Anyone subject to anti-doping rules should consult the current list. Our \u003ca href=\"\/blogs\/news\/what-are-sarms-the-2026-research-guide\"\u003eresearch guide\u003c\/a\u003e covers the wider legal picture.\u003c\/p\u003e\n\u003ch3\u003eWhat a documented UK listing shows\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eA named maker and a named seller\u003c\/strong\u003e, so there is someone accountable for the label and someone to contact about the order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA batch or lot number\u003c\/strong\u003e on the container. Analytical results belong to a batch, never to a product name.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA certificate of analysis for that batch\u003c\/strong\u003e, issued by a named laboratory, with a matching lot number.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA stated strength\u003c\/strong\u003e, or a plain statement that the manufacturer gives none.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResearch-only wording\u003c\/strong\u003e: sale to adults only, with no usage directions and nothing promising a result.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTracked delivery in plain packaging\u003c\/strong\u003e and a written returns policy.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhere this Thoroughbred Labs pack stands\u003c\/h3\u003e\n\u003cp\u003eFreeMuscle LTD is a UK company based in Scunthorpe. The manufacturer is named, sale is limited to adults and this page contains no directions for use. Every order ships with free tracked UK delivery in plain packaging, orders placed before 2pm Monday to Friday are processed the same working day, EU delivery takes 3 to 7 working days, and unopened items can be returned within 30 days. Two checks depend on Thoroughbred Labs rather than on us. The label states no strength, so the fourth point is not met, and a batch certificate exists only where the manufacturer has supplied one for the lot we hold. The full set of checks is in our \u003ca href=\"\/blogs\/news\/how-to-choose-a-sarms-supplier-uk-checklist\"\u003eUK supplier checklist\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eCapsules compared with other forms\u003c\/h2\u003e\n\u003cp\u003eTB-500 is offered as capsules and tablets, as freeze-dried powder in sealed vials, and occasionally as ready-mixed solution. The published work on thymosin beta-4 used routes that bypass digestion: intravenous infusion in the healthy-volunteer study, eye drops and topical gels in the corneal and skin programmes, and injection in most animal models. No study has measured whether any intact TB-500 peptide reaches the blood of a person after a capsule is swallowed.\u003c\/p\u003e\n\u003cp\u003eThe reason is digestive chemistry. The stomach's pepsin and the pancreatic and brush-border peptidases of the small intestine exist to break peptide bonds, and a short linear chain such as LKKTETQ, rich in lysine residues that trypsin cleaves next to, is an ordinary substrate. Crossing the gut wall would be a second, separate hurdle.\u003c\/p\u003e\n\u003cp\u003eAs materials, the formats differ in two practical ways. Stability: dry powder, whether in a capsule or a vial, keeps better than peptide dissolved in water, where hydrolysis and microbial growth begin. Uniformity: a capsule's content depends on how evenly a small amount of peptide was blended with filler before filling, while a solution's depends on how accurately it was made up and measured out. None of this implies that any format produces an effect. The wider question is covered in \u003ca href=\"\/blogs\/news\/do-oral-peptides-work\"\u003edo oral peptides actually work\u003c\/a\u003e and, for a related peptide, \u003ca href=\"\/blogs\/news\/bpc-157-capsules-vs-injection-what-studies-used\"\u003eBPC-157 capsules vs injection\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eTB-500 compared with BPC-157\u003c\/h2\u003e\n\u003cp\u003e\"TB 500 vs BPC 157\" is the most searched comparison for this compound, and Thoroughbred Labs makes both, but the molecules have nothing in common beyond being peptides sold for repair research.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePoint\u003c\/th\u003e\n\u003cth\u003eTB-500 (thymosin beta-4 based)\u003c\/th\u003e\n\u003cth\u003eBPC-157\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eParent\u003c\/td\u003e\n\u003ctd\u003eThymosin beta-4, an intracellular actin-binding protein\u003c\/td\u003e\n\u003ctd\u003eA protein isolated from gastric juice\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eFull protein 43 residues; products analysed in 2012 held a 7-residue acetylated fragment\u003c\/td\u003e\n\u003ctd\u003e15 residues, 1419.5 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProposed mechanism\u003c\/td\u003e\n\u003ctd\u003eSequestering monomeric actin, which influences cell migration\u003c\/td\u003e\n\u003ctd\u003eGrowth factor, nitric oxide and cell-signalling pathways in rodent tissue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHuman data\u003c\/td\u003e\n\u003ctd\u003eSmall early trials of the full protein by infusion or local application; none on the fragment\u003c\/td\u003e\n\u003ctd\u003eNo randomised controlled trial published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUK status\u003c\/td\u003e\n\u003ctd\u003eUnlicensed research compound\u003c\/td\u003e\n\u003ctd\u003eUnlicensed research compound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWADA section\u003c\/td\u003e\n\u003ctd\u003eS2, named among growth factor related substances\u003c\/td\u003e\n\u003ctd\u003eS0, non-approved substances\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThymosin beta-4 has been studied by many independent groups and taken into industry-sponsored clinical programmes, although none reached approval. BPC-157 research comes largely from one university network and remains almost entirely preclinical. Neither body of work concerns capsules, and no study has compared the two peptides directly, so neither can be ranked above the other. Their different WADA sections carry the same practical result: both are banned at all times.\u003c\/p\u003e\n\u003cp\u003eThoroughbred Labs also sells \u003ca href=\"\/products\/thoroughbred-labs-bpc157-peptide-capsule-ndash-thoroughbred-labs\"\u003eBPC-157 capsules\u003c\/a\u003e and a \u003ca href=\"\/products\/thoroughbred-labs-research-system-bpc157-amp-tb500-capsule-ndash-thoroughbred-labs\"\u003eresearch system containing BPC-157 and TB-500\u003c\/a\u003e. That listing is a packaging convenience; we publish no guidance on combining the two and make no claim that they interact. Every BPC-157 brand we hold is on the \u003ca href=\"\/collections\/bpc-157\"\u003eBPC-157 collection page\u003c\/a\u003e, with background in \u003ca href=\"\/blogs\/news\/bpc-157-what-research-shows\"\u003eBPC-157: what the research shows\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eReading the certificate of analysis for this product\u003c\/h2\u003e\n\u003cp\u003eThoroughbred Labs is a third-party brand in the Muscle Market range, so the testing position differs from our own label. Every Free Muscle-brand batch is assayed by Janoshik Analytical, an independent laboratory, with the certificate sent on request by email. For Thoroughbred Labs products we show a certificate of analysis only where the manufacturer supplies one for the specific batch we hold. A generic PDF with no batch number is not a batch certificate, and we do not present one as such. Where no batch certificate has been supplied, the listing does not show one.\u003c\/p\u003e\n\u003cp\u003eFor TB-500 the identity line is where a certificate earns its keep, because the name covers two very different molecules. Read each field against the pack:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentity method.\u003c\/strong\u003e HPLC shows a peak at the retention time of a reference standard. LC-MS adds a measured mass, and here the mass decides what is in the capsule: a result near 4.96 kDa points to full-length thymosin beta-4, while a result under 1 kDa fits the acetylated seven-residue fragment. A certificate naming \"TB-500\" with no mass leaves that question open.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity percentage.\u003c\/strong\u003e The share of the chromatogram taken by the main peak. It says how clean the peptide is, not how much is in each capsule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContent per capsule.\u003c\/strong\u003e The one field that could supply the strength this label omits. It should say whether finished capsules or raw powder were tested.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLot reference and analysis date.\u003c\/strong\u003e The lot on the report should be the one printed on the tub; the date tells you whether the result is current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory name.\u003c\/strong\u003e So the result can be checked with whoever issued it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor this brand a missing field has direct consequences: with no mass the molecule is unconfirmed, with no content line the strength stays unknown, and with no batch number the report cannot be linked to the capsules in hand. Questions about current stock can go through our \u003ca href=\"\/pages\/contact\"\u003econtact page\u003c\/a\u003e. Our \u003ca href=\"\/pages\/lab-tests\"\u003elab tests page\u003c\/a\u003e and the guide on \u003ca href=\"\/blogs\/news\/how-to-read-a-certificate-of-analysis\"\u003ehow to read a certificate of analysis\u003c\/a\u003e go further.\u003c\/p\u003e\n\u003ch2\u003eDetection, sport and testing\u003c\/h2\u003e\n\u003cp\u003eThymosin beta-4 and its derivatives sit in section S2 of the WADA Prohibited List, with TB-500 named, and are prohibited in and out of competition. UK Anti-Doping applies the World Anti-Doping Code in the UK, and strict liability means an athlete is responsible for any prohibited substance in a sample regardless of what a label said. Equine anti-doping laboratories test for it too.\u003c\/p\u003e\n\u003cp\u003eMethods exist. The Ghent laboratory synthesised the acetylated fragment and proposed a strategy for detecting it in plasma and urine. The Hong Kong Jockey Club laboratory identified its metabolites in vitro, then confirmed the parent peptide at 0.02 ng\/mL in equine plasma and 0.01 ng\/mL in equine urine, and found it and its metabolites in samples from horses given the preparation. That work was in horses; no published study sets out how long TB-500 remains detectable in people. The accurate position is: detectable, window not established.\u003c\/p\u003e\n\u003ch2\u003eStorage, stability and handling\u003c\/h2\u003e\n\u003cp\u003eNo stability study of TB-500 capsules has been published, so the manufacturer's expiry or best-before date, if printed, is the limit to work to. Thymosin beta-4 contains a methionine residue, which can oxidise, so the practical threats to dry peptide powder are moisture, heat, air and light. Damp also softens capsule shells and makes contents clump.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClose the lid firmly and store the tub in a dark cupboard, well away from heat sources, steam and direct sun.\u003c\/li\u003e\n\u003cli\u003eLeave any desiccant sachet in the tub. If the pack is kept in a fridge, let it reach room temperature before opening so condensation does not form inside.\u003c\/li\u003e\n\u003cli\u003eDo not decant capsules into another pot: the printed lot number is what links them to any certificate. Only unopened packs qualify for the 30-day return.\u003c\/li\u003e\n\u003cli\u003eTreat the contents as laboratory reagents: gloves for opened capsules, away from food and drink, out of reach of children and animals, and disposal as chemical waste.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGlossary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThymosin beta-4\u003c\/strong\u003e: a 43-amino-acid protein found inside most cells, the parent of the peptides sold as TB-500.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActin sequestration\u003c\/strong\u003e: binding of unpolymerised actin so it is held in reserve rather than built into filaments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngiogenesis\u003c\/strong\u003e: formation of new blood vessels, one of the processes studied in thymosin beta-4 models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eN-terminal acetylation\u003c\/strong\u003e: an acetyl group added to the start of a peptide chain, written \"Ac-\" before the sequence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeptidase\u003c\/strong\u003e: an enzyme that cuts peptide bonds; the digestive tract contains many.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetabolite\u003c\/strong\u003e: a breakdown product that testing laboratories can look for alongside the parent peptide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ekDa\u003c\/strong\u003e: kilodalton, a unit of molecular mass equal to 1,000 g\/mol.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet peptide content\u003c\/strong\u003e: the share of a powder that is peptide, after water, salts and filler are excluded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS2\u003c\/strong\u003e: the part of WADA's list covering peptide hormones and growth factors, under which thymosin beta-4 derivatives are banned.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict liability\u003c\/strong\u003e: the principle under which a positive sample counts against the athlete whatever its source or intent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/tb-500\"\u003eAll brands of TB-500 we stock, compared\u003c\/a\u003e, including \u003ca href=\"\/products\/yakka-strength-yakka-strength-tb500-peptide-capsules\"\u003eYakka Strength TB-500 capsules\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/brand-thoroughbred-labs\"\u003eAll Thoroughbred Labs products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/peptides\"\u003eResearch peptides\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/tb-500-thymosin-beta-4-research-guide\"\u003eTB-500 and thymosin beta-4 research guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/lab-tests\"\u003eBatch testing and certificates of analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/shipping\"\u003eDelivery\u003c\/a\u003e and \u003ca href=\"\/pages\/guarantee\"\u003ereturns\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThis product is supplied for laboratory research use only. It has not been evaluated by the MHRA, EMA or FDA. It is not a medicine, not a food supplement and not for human consumption. Sold only to adults aged 18 and over. Nothing on this page is medical, dosing or usage advice, and descriptions of published studies are not claims about this product.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eGoldstein AL, et al. Thymosin beta4: a multi-functional regenerative peptide. Basic properties and clinical applications. Expert Opin Biol Ther. 2012;12(1):37-51. PMID: 22074294.\u003c\/li\u003e\n\u003cli\u003eRuff D, et al. A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers. Ann N Y Acad Sci. 2010;1194:223-9. PMID: 20536472.\u003c\/li\u003e\n\u003cli\u003eEsposito S, et al. Synthesis and characterization of the N-terminal acetylated 17-23 fragment of thymosin beta 4 identified in TB-500, a product suspected to possess doping potential. Drug Test Anal. 2012;4(9):733-8. PMID: 22962027.\u003c\/li\u003e\n\u003cli\u003eHo EN, et al. Doping control analysis of TB-500, a synthetic version of an active region of thymosin β4, in equine urine and plasma by liquid chromatography-mass spectrometry. J Chromatogr A. 2012;1265:57-69. PMID: 23084823.\u003c\/li\u003e\n\u003c\/ol\u003e\n","brand":"Thoroughbred Labs","offers":[{"title":"Default Title","offer_id":48468981219554,"sku":null,"price":44.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/3499\/5426\/files\/3D_tb500_use_6f62844a-8e1d-428a-a4b9-fbfe1fcbf3ac.png?v=1789931435"}],"url":"https:\/\/freemuscle.co.uk\/collections\/brand-thoroughbred-labs.oembed","provider":"Free Muscle","version":"1.0","type":"link"}