Research bundle: MK-677, RAD-140 and YK-11, three 60-capsule bottles

MK-677 (a ghrelin-receptor secretagogue), RAD-140 (a SARM) and YK-11 (a steroidal compound). Only MK-677 has published human trial data.

These products are supplied for laboratory research use only. We do not provide dosing instructions, cycle lengths or post-cycle protocols for human use.

Price, and nothing else. It is the same three products at a lower total than buying them separately. We are not claiming they work better together.

Yes. Identity and purity, per batch, by Janoshik Analytical. Email us the batch numbers from your packs and we will send the Certificates of Analysis. You do not need to have bought anything to ask.

Whoever you buy from, check five things for each bottle: a printed batch number, a certificate of analysis for that batch from a named laboratory, the strength per capsule stated by the seller, tracked delivery and a written returns policy. Free Muscle sells all three for laboratory research use only, not for human consumption, to adults aged 18 or over, separately or in this bundle of three 60-capsule bottles; more bundles are in our bundles collection. Every Free Muscle-brand batch is assayed by Janoshik Analytical, and we send the certificate for each batch on request.

None of the three is a licensed medicine in the UK or an authorised food supplement ingredient: MK-677 (ibutamoren), RAD-140 and YK-11 hold no MHRA marketing authorisation. MK-677 and RAD-140 are not listed as controlled drugs under the Misuse of Drugs Act 1971; YK-11 is not named in it either, but it has a steroidal structure, and Part III of Schedule 2 also controls some steroids by a structural definition, on which we make no statement. In sport, all three are prohibited at all times: MK-677 under section S2 of the WADA Prohibited List, RAD-140 and YK-11 under S1.2. Free Muscle supplies them for laboratory research use only, not for human consumption, to adults aged 18 or over. This is general information, not legal advice.

Orders placed before 2pm UK time, Monday to Friday, are processed the same working day. UK delivery is free and tracked on every order, with no minimum spend, and usually takes 2–3 working days after dispatch; faster tracked UK delivery costs £6 and usually takes 1–2 working days after dispatch. Delivery to Romania and the rest of the EU uses our paid tracked international service and usually takes 3–7 working days after dispatch, and the rest of the world usually 5–14 working days. Details are on our shipping page.

Yes. Unopened items can be returned within 30 days; see our 30-day guarantee.

Adults aged 18 or over. The three compounds in this bundle are supplied for laboratory research use only and are not for human consumption: we do not sell them as medicines or as food supplements, and we do not give dosing or usage advice.