Healing Properties: Unlike retinoids, which can initially compromise the skin barrier, copper peptides actually enhance wound healing and barrier function
Plasma Concentration: From ~200 ng/mL to ~80 ng/mL Research measuring GHK-Cu across different age groups has found plasma concentrations of roughly 200 ng/mL around age 20, falling to approximately 80 ng/mL by age 60 a decline of more than 50% over four decades
A peer-reviewed study in the Journal of Endocrinology confirming that AOD9604 produces lipolysis and increases fat oxidation in obese mice via the beta-adrenergic pathway, with effects comparable to full-length HGH but without the insulin-disrupting side effects provided early mechanistic validation that informed the human trials
References Aprile N, Scano S, Bellei B, Marini A, Filoni A
The observed biological actions of GHK-Cu are extensive and highly relevant to skin health
A systematic approach alternating between different abdominal quadrants, thighs, and upper arms ensures no single site receives repeated injections within 24-48 hours