Peptide World
EN
← Research Library
Hormones · 5 min read Evidence: Human pilot

Ipamorelin: selective GH release without a modern outcome program

Early papers called ipamorelin unusually GH-selective. Later clinical development for ileus did not produce a wellness franchise.

Ipamorelin is a pentapeptide ghrelin-receptor (GHS-R) agonist. Classic pharmacology work described GH release with less effect on cortisol and ACTH than some older secretagogues.

Where clinical development went

Registered trials later explored postoperative ileus — a hospital problem, not a gym problem. That program did not turn ipamorelin into an approved recovery or fat-loss drug. There is still no modern RCT showing ipamorelin improves body composition or “recovery” in healthy adults.

Why it is paired with CJC-1295 online

The stack story is receptor theory: GHRH analog plus ghrelin-mimetic. Theory is cheap. Outcome data for the stack are essentially absent.

Bottom line

Evidence ladder: Human pilot. Selectivity in a hormone assay is not a health claim.

Sources

  1. Raun K et al. Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol 1998 ↗
  2. ClinicalTrials.gov u2014 ipamorelin trials ↗

Questions about this article? The AI Scholar can walk you through the studies.

Educational content only — not medical advice. See our Medical disclaimer and Editorial policy.

Keep reading