AOD9604 is a peptide fragment derived from the human growth hormone (hGH). Specifically, it comprises the C-terminal fragment of hGH, which is the amino acid sequence 177-191. It was initially developed for its potential anti-obesity effects, as it reportedly mimics the fat-reducing activity of hGH without exerting any significant influence on insulin levels or growth. AOD9604 is thought to enhance lipolysis, the breakdown of fats, and inhibit lipogenesis, the formation of fat. Its application in medical and cosmetic fields is still undergoing research to fully understand its benefits and safety profile.