MK-777
growth hormone secretagogueMK-777 is a research-use-only peptide. PeptideSource compares suppliers on purity, COAs, and price-per-mg.
Also known as: MK777, Acetamoren
MK-777, also known as Acetamoren, is a growth hormone secretagogue that stimulates the release of growth hormone from the pituitary gland. It functions by activating the ghrelin receptor, which is involved in regulating appetite and energy balance. Scientists initially studied MK-777 for its potential to enhance muscle growth and improve metabolic functions. Today, it is primarily studied for its effects on:
- Increasing growth hormone levels
- Enhancing muscle mass
- Improving bone density
- Regulating metabolism
- Appetite control
PeptideSource editorial · Updated Jul 18, 2026
For research use only. PeptideSource does not sell peptides directly. Compare third-party supplier listings at your own discretion.
Compare suppliers
Size | ||
|---|---|---|
| Shop now | Shop | Shop |
| Product | MK-777 Acetamoren Powder | MK-777 Acetamoren Capsules |
| Size | 750 mg | |
| Price | $104.99 | $89.99 |
| Price/mg | $0.05/mg | $0.12/mg |
| Price change | 0% (16d) | 0% (16d) |
| Stock | In stock | In stock |
| Shipping | 5–7 days | 5–7 days |
| Reviews | 4.3(159) | 4.3(159) |
| Purity | 99% | 99% |
| COA | — | — |
| Bulk discount | — | — |
