Ipamorelin
Selective GHSR-1a agonist pentapeptide. Studied in pulsatile GH-release research.
Ipamorelin is supplied by Bench Grade Peptides as a lyophilized powder in a sealed, lot-numbered vial, for laboratory research use only — not for human or veterinary use.
Its published Certificate of Analysis (lot 00011/0011, analyzed September 3, 2026) is from AV Analytics, a third-party laboratory, and reports 99.8% purity by HPLC; every published lot is listed on the product's COA page. Vials ship at ambient temperature in protective packaging from Florida (Bench Grade Peptides LLC is registered in Dover, Delaware), with storage notes on the lot's certificate.
Ipamorelin is a pentapeptide secretagogue that stimulates growth-hormone release through the ghrelin receptor (GHS-R1a). What made it a fixture of GH-axis research is its selectivity: unlike earlier secretagogues in the GHRP family, ipamorelin triggers GH release without meaningful effects on cortisol, prolactin, or ACTH in the published work.
That clean receptor profile makes it the standard tool compound for isolating GH-specific effects in endocrine research — when a lab needs to move the GH axis without confounding stress-hormone signals, ipamorelin is usually the reagent chosen. It is also studied in combination with GHRH analogs like sermorelin and tesamorelin, which act on the complementary receptor pathway.
Bench Grade stocks ipamorelin as a single compound and in blended form. Its lots are HPLC-verified, with Certificates of Analysis published in the COA library.
Published research
- Ipamorelin, a new growth-hormone-releasing peptide, induces longitudinal bone growth in rats
- Ipamorelin, the first selective growth hormone secretagogue