pamorelin is a pentapeptide that selectively triggers the body's own pulsatile release of growth hormone. Ipamorelin is a five amino acid peptide that acts as a selective ghrelin and growth hormone secretagogue receptor agonist. Ipamorelin Did You Know? Ipamorelin is a peptide classified as a growth hormone secretagogue, studied for its interaction with the ghrelin receptor (GHS R1a). Researchers examine how this pathway influences controlled Table 3 from Ipamorelin, the first selective growth hormone secretagogue. Semantic Scholar Molecular recognition of an acyl peptide hormone and activation of ghrelin receptor bioRxiv Ipamorelin Peptide: Research Overview Into Energy Homeostasis