AOD 9604: Peptide Claims vs Clinical Reality, AOD 9604 is marketed as a fat metabolism peptide derived from a growth hormone fragment, often positioned as HGH like without HGHs side effects. The AOD 9604 Peptide Metabolic and Enzyme Research (RUO) AOD 9604 Peptide: Fat Loss, Before and After Results, and How It Works AOD 9604 targets the fat signaling region of growth hormone, activating lipolysis while leaving insulin and IGF 1 unchanged. Growth hormone regulates fat metabolism through a specific domain in its molecular structure, the amino acids