Ipamorelin

Ipamorelin is a synthetic pentapeptide GH secretagogue characterized by high GHS-R1a receptor selectivity in preclinical studies, distinguishing it from less selective growth hormone secretagogue research compounds. Structurally incorporates non-proteinogenic amino acid residues — including Aib at position 1 and D-2-naphthylalanine at position 3 — which contribute to its in vitro receptor binding profile and structural stability characteristics. Investigated in preclinical and in vitro laboratory models examining GHS-R1a receptor binding activity, ghrelin receptor pathway signaling, pulsatile GH secretagogue pathway modulation, endocrine axis signaling research, and hypothalamic receptor activity. Frequently referenced in published preclinical literature alongside other GH-axis research peptides in comparative receptor selectivity studies. For Research Use Only — Not for Human or Veterinary Use.