The role of pro opiomelanocortin in the ACTHcortisol dissociation of sepsis Critical Care Springer Nature Link 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 Normal Physiology of ACTH and GH Release in the Hypothalamus and Anterior Pituitary in Man Endotext NCBI Bookshelf 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 Effects of Excess Cortisol and Hypercortisolism