AOD 9604 Peptide Hormone Replacement Therapy Los Angeles 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 Pediatric Implications of Normal Insulin GH IGF Axis Physiology Endotext NCBI Bookshelf 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