AOD-9604 is a synthetic peptide fragment corresponding to the C-terminal region of human growth hormone (hGH), specifically amino acids 177–191. Unlike full-length hGH, AOD-9604 does not stimulate IGF-1 production or affect blood glucose, making it a highly selective research compound for fat metabolism. It is studied for its ability to stimulate lipolysis (fat breakdown) and inhibit lipogenesis (fat formation), with particular interest in its effects on visceral and subcutaneous adipose tissue. AOD-9604 has demonstrated a favorable safety profile in preclinical and early clinical research.