Verified Peptide ReviewLast reviewed: 28 March 2026
Compound Profile · GH Secretagogue
Hexarelin
Hexarelin is a hexapeptide GH secretagogue studied in research for GH release and muscle-building effects. It is not approved for human use.
LegalResearch onlyEvidenceEmergingHuman useNot approved
7.2/ 10
Peptide Score
Evidence
Safety
Regulatory
Transparency
Quick verdict
Potent GH release in research, but cortisol elevation is a notable concern. Less-studied selectivity profile than ipamorelin.
Reality check
What this isn't
- Not approved for human use — research-only context
- No regulator has approved human use
- Evidence base is early — long-term data limited
- Side-effect profile not fully characterised
- Educational only — not medical advice
Full Hexarelin review
A six-amino-acid peptide GH secretagogue acting on the ghrelin/GHS-R.
Structurally related to other hexapeptide secretagogues but with distinct receptor kinetics.
Looking at alternatives?
Compounds with comparable research interest but different evidence, regulatory status, or risk profile.