How does AOD-9604 work?
Fragment of HGH (residues 176-191) that retains lipolytic (fat-burning) activity but lacks the residues responsible for IGF-1 stimulation, water retention, and insulin resistance. In plain terms, AOD-9604 is a fat-loss peptide. It's a modified fragment of HGH (residues 176-191) that targets fat metabolism without the full GH side effect profile. Mechanistic detail like this comes largely from preclinical and early research, the human picture is limited.
What people use it for
- Users wanting localized fat-loss support
- People who can't tolerate GH-class side effects (water, glucose impact)
- Stacks layered onto a clean cut
References
- Metabolic studies of a synthetic lipolytic domain (AOD9604) of human growth hormone — Ng FM, Sun J, Sharma L, et al., Hormone Research, 2000
- The effects of human GH and its lipolytic fragment (AOD9604) on lipid metabolism following chronic treatment in obese mice and beta(3)-AR knock-out mice — Heffernan M, Summers RJ, Thorburn A, et al., Endocrinology, 2001
- Safety and Tolerability of the Hexadecapeptide AOD9604 in Humans — Stier H, Vos E, Kenley D, Journal of Endocrinology and Metabolism, 2013;3(1-2):7-15
Pepdex is an editorial reference, not medical advice. Peptides vary in legal and approval status by country, many are research compounds without full human safety data. Talk to a qualified clinician before starting anything.
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Last updated 2026-06-06.