PCT blend capsules, 60 per bottle

Last reviewed: 16 October 2026 · sources and prices checked by Free Muscle.

Key facts

Where to buy a PCT blend in the UK: what to check

Whichever seller you consider, check these five points:

1. Stated strength and capsule count. Here: 60 capsules per bottle; the certificate for your batch states what the capsules contain.
2. A batch number on the pack. Here: printed on every bottle we ship.
3. A certificate for that batch from a named independent laboratory. Here: Janoshik Analytical; we email the certificate for your batch on request.
4. Tracked delivery in plain packaging and a written returns policy. Here: every order ships in plain packaging, UK delivery is free and tracked, EU delivery usually takes 3 to 7 working days after dispatch, and unopened items can be returned within 30 days.
5. Sold for laboratory research only, to adults aged 18 or over. Here: no instructions for human use are given.

Our UK supplier checklist explains each point, and How we test sets out what a certificate does and does not prove.

Research compounds sold by Free Muscle are supplied for laboratory research use only and are not for human consumption. They are not authorised as medicines by the MHRA, EMA or FDA, are not food supplements, and are sold only to adults aged 18 or over. Nothing on this page is medical or dosing advice.

PCT blends in the UK: buying, legal status and what to check

"PCT" is shorthand for post-cycle therapy, a term from bodybuilding forums for attempts to restore the body's own testosterone production after a course of anabolic steroids or SARMs has suppressed it. Searches for PCT supplements or PCT tablets in the UK mix three very different things: prescription medicines used by clinicians for diagnosed hypogonadism, food supplements sold with vague hormone claims, and research products like this one. Free Muscle PCT is a product designation: a formulated research product sold under a name, not a single established compound, and there is no clinical literature published under that name. Its ingredients are not listed in this text: the label and the batch certificate are the references for what a bottle contains.

The product is not a licensed medicine, is not an authorised food supplement, and is supplied by FreeMuscle, a business registered in Andorra with UK operations and dispatch in Scunthorpe, to adults aged 18 or over for laboratory research only. A trustworthy UK listing for any blend should state the pack size, offer a certificate of analysis for the specific batch, and make no promise of hormonal outcomes. This listing is a bottle of 60 capsules, and every Free Muscle batch is assayed by Janoshik Analytical, an independent laboratory, with the certificate for a batch sent on request by email. That certificate, read alongside the label, is the authoritative statement of what the capsules contain. Orders ship in plain packaging with free tracked UK delivery, EU delivery takes three to seven working days, and unopened items may be returned within 30 days; see shipping and guarantee.

One thing a listing should never do is stand in for a doctor. Suppressed testosterone is diagnosed with a blood test and managed by a clinician. We do not give post-cycle advice, and the question belongs in a consultation with a doctor, not on a product page.

Capsules compared with other forms

Multi-component products are sold as capsules, tablets, liquids and loose powders, and for a blend the form matters more than for a single compound. A capsule holds a weighed fill of the finished mixture, so every component is fixed in proportion at manufacture and can be assayed together. A liquid blend can separate, with components of different solubility settling at different rates, so the top and bottom of a bottle may not match. A powder blend depends on how thoroughly it was mixed and on access to a balance capable of weighing small quantities accurately. Tablets add binders and compression, which complicates assay. None of this is a statement about what any form does; it is about whether a certificate can describe the unit in your hand.

PCT blend compared with enclomiphene

Enclomiphene is the compound most often searched alongside PCT products, and the comparison shows the difference between a compound and a designation. Enclomiphene is a single, defined molecule, the trans isomer of clomifene, a selective oestrogen receptor modulator that blocks oestrogen feedback in the hypothalamus. It has controlled human trials in men with diagnosed secondary hypogonadism, discussed on the enclomiphene collection page, and a regulatory history: it has not been approved as a medicine in the UK, the EU or the United States. A PCT blend has no molecule-level literature, because it is a product name. Its evidence base is whatever exists for each component, and the certificate of analysis is the only way to know what those components are.

On regulation, neither is a licensed medicine or an authorised supplement in the UK or EU. On sport, selective oestrogen receptor modulators and aromatase inhibitors are prohibited by WADA at all times under section S4, so any blend containing them is prohibited, and a competitor would need to check every identified component against the current list.

Reading the certificate of analysis for this product

For a single compound, a certificate answers one question. For a blend it should answer several. Identity should name each component the laboratory found, established by HPLC retention time and mass spectrometry against reference standards. Content should give the quantity of each identified component per capsule, not a single combined figure. Purity for a blend is less informative than for a single compound, because the components are deliberately mixed; what matters is whether unexpected peaks appear. The batch number must match the label and the test date shows the age of the result.

If a component appears on a label but not on the certificate, it was not tested for and its presence is unconfirmed. If the certificate shows a component that does not appear on a label, the label is incomplete. Free Muscle makes no ingredient claims in this text; the label and the batch certificate are the references, and the certificate is sent on request to anyone who emails the batch number and product name. Our guides to reading a certificate of analysis and to Janoshik Analytical explain each field, and the lab tests page shows how batches are handled.

Detection, sport and testing

Because the product is a designation, its anti-doping status is that of its components. The drugs most often associated with post-cycle therapy each have a place on the 2026 WADA Prohibited List: aromatase inhibitors in section S4.1, anti-oestrogens and selective oestrogen receptor modulators in S4.2, and chorionic gonadotrophin (hCG), banned in men, in S2.2.1. All are prohibited at all times, in and out of competition. Doping-control laboratories routinely screen urine for these classes, so any such component should be treated as detectable, with the window not established in literature we have verified. An athlete subject to testing should assume this product is prohibited and should check each component named on its certificate against the current Prohibited List.

Storage, stability and handling

Keep the bottle sealed in a cool, dry place away from light and heat, and reseal promptly after opening; capsule shells absorb moisture. Do not decant into unlabelled containers, and keep the batch number with the material so that the certificate can always be matched to it. Store out of reach of children and pets. Handle as laboratory material: wash hands after contact, avoid dust if a capsule is opened, and dispose of unwanted stock through a chemical waste route rather than household bins or drains. A certificate describes the batch on its test date, not a bottle stored badly for months.

What the published research reports

There is no published study of this product or of any PCT blend as a product. The relevant literature is about the category. An analysis of the five top-listed testosterone-boosting supplements on a major online retailer found 19 unique ingredients and 191 studies of the 10 most common ones, only 19 per cent of them in humans; of the 37 human studies, 30 per cent reported a rise in testosterone, 3 per cent a fall, 46 per cent no effect and 22 per cent were indeterminate (Balasubramanian 2019). A review of 50 such products found that 90 per cent claimed to boost testosterone, while published data showing an increase existed for only 24.8 per cent; 13 products exceeded US upper intake levels for zinc, vitamin B3 or magnesium (Clemesha 2020). On the underlying problem, a review of anabolic steroid-induced hypogonadism was intended as a meta-analysis but found no studies that met its quality criteria, and recommended complete endocrine and metabolic assessment by a clinician (Rahnema 2014). A cross-sectional study of 24 former long-term steroid users found that the 19 not receiving testosterone treatment had significantly lower testosterone and smaller testicular volume than 36 non-using weightlifters; five had testosterone below 200 ng/dl after 3 to 26 months of abstinence, and 29 per cent of the whole group had had a major depressive episode during withdrawal (Kanayama 2015).

Three newer sources deal with post-cycle therapy directly. A 2026 narrative review, covering mainly SERMs, hCG and aromatase inhibitors, judged the evidence limited and largely observational, observed that hormone production recovers on its own in most men within months of stopping steroids, and concluded that, academically, the practice is generally not recommended, since its benefit is uncertain and it carries potential risks (Smit 2026).

When Poland's official medicines control laboratory analysed 63 seized products declared to contain post-cycle drugs, about a third lacked the declared ingredient and about one in five contained no active ingredient at all (Blazewicz 2025). Two case reports described cholestatic liver injury, resolving after about three months, in young men who had taken SARMs and then post-cycle substances (Koller 2021). A product name is not evidence, and suppression is a medical matter. None of this is a claim about the product on this page.

References

• Balasubramanian A, et al. Testosterone Imposters: An Analysis of Popular Online Testosterone Boosting Supplements. J Sex Med. 2019;16(2):203-212. PMID: 30770069.
• Clemesha CG, Thaker H, Samplaski MK. 'Testosterone Boosting' Supplements Composition and Claims Are not Supported by the Academic Literature. World J Mens Health. 2020;38(1):115-122. PMID: 31385468.
• Rahnema CD, et al. Anabolic steroid-induced hypogonadism: diagnosis and treatment. Fertil Steril. 2014;101(5):1271-1279. PMID: 24636400.
• Kanayama G, et al. Prolonged hypogonadism in males following withdrawal from anabolic-androgenic steroids: an under-recognized problem. Addiction. 2015;110(5):823-831. PMID: 25598171.
• Smit DL, et al. Post-cycle therapy after androgen abuse: a narrative review of mechanisms, evidence, and clinical perspectives. Endocr Connect. 2026;15(9):e260319. PMID: 42644333.
• Blazewicz A, et al. Illegal and falsified medicines self-administrated in not approved post-cycle therapy after the cessation of anabolic-androgenic steroids - qualitative analysis. Front Chem. 2025;13:1536858. PMID: 40177353.
• Koller T, et al. Liver injury associated with the use of selective androgen receptor modulators and post-cycle therapy: Two case reports and literature review. World J Clin Cases. 2021;9(16):4062-4071. PMID: 34141767.

Glossary

• PCT: post-cycle therapy, a forum term for attempts to restore hormone production after suppressive compounds.
• Product designation: a trade name for a formulated product, as opposed to an established compound name.
• HPG axis: the hypothalamus, pituitary and gonads, the signalling chain that controls testosterone.
• LH and FSH: luteinising hormone and follicle-stimulating hormone, the pituitary signals to the testes.
• SERM: selective oestrogen receptor modulator, such as enclomiphene or clomifene.
• Aromatase inhibitor: a compound that blocks conversion of androgens to oestrogens.
• hCG: human chorionic gonadotrophin, listed by WADA among the testosterone-stimulating peptides banned in men (section S2.2.1).
• Hypogonadism: clinically low testosterone, diagnosed by blood tests and symptoms.
• ASIH: anabolic steroid-induced hypogonadism.
• Certificate of analysis (COA): a laboratory report of what a batch contains.
• Batch number: the code on the pack that ties it to one production run and one certificate.

More questions

What side effects are linked to post-cycle therapy?

We cannot describe effects for a product with no clinical literature, and we do not give post-cycle advice. Published reports concern the substances used under the name: the liver-injury cases described above, and, in former long-term steroid users, lower testosterone, smaller testicular volume and frequent depressive episodes during withdrawal, sometimes lasting many months. That is a medical picture, for a clinician and blood tests.

Are there proven benefits of post-cycle therapy products?

No benefit has been shown for this product, and we make no benefit claims. Analyses of testosterone-boosting supplements found that, of the human studies of their ingredients, no effect on testosterone was the most common result, and a 2026 review found the evidence for the drugs used as post-cycle therapy limited, noting that most men's hormone production recovers without treatment within months. Suppressed hormones are diagnosed and managed by a doctor.

Related compounds and reading

• PCT Blends collection and Enclomiphene, the single compound most often compared with PCT products.
• SARMs, the compounds that most often prompt the question, and every Free Muscle-brand product.
• What is in a PCT blend? Ingredients, evidence and UK status
• Why post-cycle therapy (PCT) matters
• What are SARMs? The 2026 research guide
• How to read a certificate of analysis
• What is Janoshik Analytical?

Research compounds sold by Free Muscle are supplied for laboratory research use only and are not for human consumption. They are not authorised as medicines by the MHRA, EMA or FDA, are not food supplements, and are sold only to adults aged 18 or over. Nothing on this page is medical or dosing advice.