Sermorelin vs CJC 1295 Ipamorelin: Why Modern Medical Clinics Have Moved to the Stack Perfect B ACTH (Adrenocorticotropic Hormone), Cushing's Syndrome Labpedia.net Hypothalamic Pituitary Adrenal (HPA) Axis: ACTH, Cortisol, Regulation and Functions TeachMePhysiology 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