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 Wikipedia Sermorelin vs CJC 1295 Ipamorelin: Why Modern Medical Clinics Have Moved to the Stack Perfect B Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives The role of 'adipotropins' and the clinical importance of a potential hypothalamicpituitaryadipose axis Nature Reviews Endocrinology Prolactin as an adrenocorticotropic hormone: Prolactin signalling is a conserved key regulator of sexually dimorphic adrenal gland function in health and disease Lalli 2022 BioEssays Wiley Online Library