CJC 1295 vs Ipamorelin vs GH Secretagogues GHRP and Penis Growth: What the Evidence Actually Shows Ipamorelin Peptide Research, Benefits & US Sourcing Peptide Intel 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 GH Releasing Peptide TRTMD