The evolution of Ibutamoren. MK-777 is a high-affinity GHS-R1a agonist engineered with modern pharmacokinetics for cleaner GH & IGF-1 support — recovery, sleep and lean mass, reimagined. Bioreactive Series.

A modern ghrelin-receptor agonist built to deliver GH support with a cleaner, more refined profile.
A potent GHS-R1a agonist designed to trigger a strong, natural GH release.
Supports the same growth-and-recovery pathway as MK-677, with modern kinetics.
The signature secretagogue benefit — deeper, more restorative rest.
Supports faster recovery and lean fullness across a research cycle.
Formulated in the Bioreactive Series for refined pharmacokinetics.
Like MK-677, it's a secretagogue — no testosterone suppression, no PCT.
Next-generation secretagogue chemistry, Bioreactive Series.
A high-affinity ghrelin-receptor agonist — the next step beyond Ibutamoren.
One capsule a day covers a full research cycle from a single bottle.
A single daily capsule, commonly taken before bed for the sleep benefit.
Third-party HPLC tested. Certificate of analysis available on request.
Suggested use: 1 capsule daily, ideally before bed. Non-hormonal — no PCT required. Pairs well with RAD-150 in the Bioreactive Series.

Tax included · 60 capsules · non-hormonal · no PCT
Felt cleaner than standard MK-677 for me — same great sleep, recovery on point. The Bioreactive line is legit.
Ran it with RAD-150 and recovery was the best I've had. Premium feel.
One cap before bed, deep sleep, no PCT to worry about. Exactly what I wanted.
MK-777 (Acetamoren) is a next-generation growth hormone secretagogue — a high-affinity GHS-R1a (ghrelin receptor) agonist positioned as an evolution of MK-677.
Same GH-support pathway, modern pharmacokinetics. Part of our Bioreactive Series for a refined profile.
No. Like other secretagogues it's non-hormonal and does not suppress natural testosterone.
Once daily, commonly before bed to support deeper sleep and overnight recovery.
Every Bioreactive Series batch is third-party tested. COA available on request.
Cleaner GH support, modern kinetics, no PCT. Bioreactive Series at €69.99.
I WANT MK-777Sold as a research compound for laboratory and educational use. Not a medicine; not evaluated by the EMA or FDA; not intended to diagnose, treat, cure or prevent any disease. Not for use by anyone under 18 or by women who are pregnant or breastfeeding. Consult a qualified healthcare professional before use.
UK: free delivery, 2–3 business days.
EU & worldwide: calculated at checkout, fully tracked. Discreet, plain packaging on every order.
30-day returns on unopened items in original packaging. Return shipping is paid by the customer. Email us to start a return.
SSL-encrypted, GDPR-compliant checkout. Every batch is third-party lab-tested (Janoshik) — certificate of analysis available on request.
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freemuscleuk@gmail.com
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