Peptides for muscle & performance
Growth-hormone secretagogues and myostatin-pathway compounds studied for muscle growth and body composition. 18 compounds tracked in this category, ranked by community report volume — each with an evidence grade and links to the research.
Follistatin 344 is a glycoprotein that blocks myostatin and activins from the TGF-β family. By switching off myostatin, the natural brake on…
Modified GRF 1-29 is a stabilized synthetic GHRH fragment that triggers the pituitary to secrete the body's own growth hormone. It is resear…
A GHRH analog that drives natural pituitary GH production; FDA-approved for pediatric GH deficiency and used off-label for anti-aging and bo…
The most selective GHRP, delivering a clean GH release with little effect on cortisol, prolactin, or hunger and minimal side effects.
A community-favorite blend of BPC-157 and TB-500 promoted for accelerated healing and soft-tissue repair, though no study has ever tested th…
A synthetic GHRH analog that prompts sustained growth hormone release, used for anti-aging, muscle growth, fat loss, and recovery.
GHRP-6 stimulates GH release and strongly increases appetite through ghrelin-receptor activation, producing the largest hunger boost of the …
Hexarelin is one of the most potent GHRPs, driving strong GH pulses via ghrelin-receptor activation, and it also offers cardioprotective eff…
GHRP-2 is a synthetic hexapeptide that drives reliable growth hormone release through the ghrelin receptor, and is popular for anti-aging, m…
CJC-1295 with DAC is a GHRH analog whose DAC modification extends its half-life to about 8 days, allowing less frequent dosing while sustain…
Ibutamoren (MK-677) is an orally active growth hormone secretagogue that mimics ghrelin to raise GH and IGF-1 through pulsatile release, pre…
A 28-amino-acid stomach hormone and the endogenous GHSR ligand, ghrelin triggers growth hormone secretion, increases appetite, and coordinat…
ACE-031 is a soluble ActRIIB fusion protein that neutralizes myostatin and related muscle-growth inhibitors to drive skeletal muscle develop…
1:1 CJC-1295 (no-DAC) + Ipamorelin GH-secretagogue blend (10 mg) for GH/IGF-1 support, recovery and body composition.
A TGF-beta superfamily protein and activin type II receptor ligand that negatively regulates erythropoiesis; once hyped as a rejuvenation fa…
FDA-approved growth hormone used off-label for fat loss, lean mass, and anti-aging; dosed in IU and requires careful glucose monitoring.
A purified FSH-plus-LH hormone preparation that stimulates the gonads to support testosterone production, sperm maturation, and follicle gro…
A long-acting, IGFBP-resistant version of IGF-1 used in research and by bodybuilders in microgram doses to stimulate muscle growth. It is an…
Where researchers buy
The same top-ranked, COA-checked suppliers apply across categories:
#1 Serum Research Featured partnerAffiliated · disclosure | #2 BioChain USA | #3 Nootropics Depot | |
|---|---|---|---|
| Score | 9.6/10 | 9.5/10 | 9.5/10 |
| COA | ✓ Yes | ✓ Yes | ✓ Yes |
| Country | USA | USA | USA |
| Why we rate it | Full per-batch COAs on every product and competitive pricing, from our affiliated partner — labeled as such wherever it appears. | Published per-batch COAs, third-party testing, and a risk-free guarantee from a US-only shipper. | Operates at a global scale with a high degree of transparency, and earns praise for its customer support and logistics. |
| Check prices at Serum Research →Read review → | Check prices at BioChain USA →Read review → | Check prices at Nootropics Depot →Read review → |
Educational information only — not medical advice and not an endorsement to use any compound. Evidence grades summarize published research; most compounds here are unapproved research chemicals sold for laboratory use and labelled "not for human consumption."