LEAP2 Is an Endogenous Antagonist of the Ghrelin Receptor: Cell Metabolism 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 Ipamorelin and CJC 1295 are almost always discussed together in research circles, and the reason comes down to receptor pharmacology. The two peptides work through entirely different but complementary mechanisms that produce a The Ultimate Human Shop Peptual CJC 1295 + Ipamorelin