Ipamorelin is a synthetic pentapeptide and selective growth hormone secretagogue (GHS) that mimics ghrelin's action at the GHSR-1a receptor (growth hormone secretagogue receptor). What distinguishes Ipamorelin from older GH-releasing peptides (like GHRP-2 and GHRP-6) is its high selectivity — it stimulates GH release without meaningfully raising cortisol, prolactin, or ACTH levels, making it a "clean" GH secretagogue for research purposes.
Ipamorelin produces a GH pulse that closely resembles natural pulsatile secretion patterns rather than continuous supraphysiological elevation. This selectivity profile has made it a preferred research compound for studying GH axis biology, body composition, and recovery without the hormonal noise introduced by less selective secretagogues.
It is frequently studied in combination with CJC-1295 (a GHRH analog), as the two compounds target complementary receptor types — GHSR (Ipamorelin) and GHRH-R (CJC-1295) — producing synergistic GH release in research models.
Third-party tested · Lot-specific COA · US domestic shipping 24–48h
Buy Ipamorelin Now →| Purity | ≥99% (HPLC verified, third-party) |
| Molecular Weight | 711.9 Da |
| Appearance | White lyophilized powder |
| Storage | –20°C long-term; 4°C up to 14 days after reconstitution |
| Lot Number | OL-2026-011 |
| Format | Lyophilized powder, sealed vial |
| Certificate of Analysis | Lot-specific COA included with every order |
| Intended Use | In vitro laboratory research only |
| Receptor Target | GHSR-1a (ghrelin receptor) — selective agonist |
Research Use Disclaimer: Ipamorelin is sold strictly for in vitro laboratory research purposes only. Not for human consumption, veterinary use, or clinical application. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.