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Stapleton JM, Yardley JE, Boulay P, Sigal RJ, Kenny GP

Additionally, if you notice reduced effects at a dose that previously worked well, degradation is a possible cause

And it may not be safe for those with soy allergies due to the unknown origins of the supplements phosphatidylserine (often made from soy)

Dan Wool, NMD Arizona-licensed Naturopathic Physician and Gastroenterology Specialist Updated: February 26, 2026 Summary (tl;dr): What AOD-9604 Is and How It Works: AOD-9604 is a synthetic 16-amino acid fragment of human growth hormone (hGH) specifically amino acids 176191 engineered to target fat metabolism