MK-777 (Acetamoren)

MK-777 is MK-677's reputation wearing a new name. If you want the growth hormone secretagogue effect, the parent has the real evidence and this analog has none, which is why it scores 4.5–5.0/10 and lands below the studied MK-677 at 4.9/10. The honest finding is that no science establishes MK-777 works, is safer, or is next-generation relative to MK-677. That positioning is marketing language riding on a better-known, actually-studied molecule.

✅ Best for: Researchers and analysts mapping the gray-market secretagogue space who need a documented example of a relabel with no data of its own. Writers covering peptide and research-chemical marketing who want the honest evidence state rather than the vendor version. Anyone weighing MK-777 against its parent who needs the comparison spelled out. Not people looking for a compound to take today.

❌ Avoid if: You want a growth hormone secretagogue you can take now, in which case the studied parent MK-677 has the human record MK-777 lacks. You are prone to elevated fasting glucose or insulin resistance, since the parent-class effect raises glucose. You compete in tested sport, because the class is WADA-banned. You cannot verify a vendor's purity, which for an unlisted molecule is a real sourcing risk.