PDF] Ipamorelin, the first selective growth hormone secretagogue. Semantic Scholar Ghrelin: Trends in Endocrinology & Metabolism Ipamorelin is a pentapeptide. Five amino acids. That's it. But three of those five don't exist in nature. The sequence: Aib His D 2 Nal D Phe Lys, with a C terminal amide. Position 1 is aminoisobutyric acid the Ipamorelin is a potent growth hormone releasing peptide that has some potential advantages over some of the others. Although peptides seem to be doled out like aspirin, keep in mind that these are Growth hormone releasing hormone and its analogues in health and disease Nature Reviews Endocrinology Extracted ion chromatograms of GHRP 1, GHRP 4, and ipamorelin using two Download Scientific Diagram