GHK-Cu
Copper tripeptide used mostly in topical/cosmetic contexts; evidence varies by formulation and endpoint.
Stacks containing GHK-Cu
Public community stacks that include this ingredient.
Adds a copper peptide often discussed in cosmetic/skin contexts to a recovery/joint pairing. Evidence is indirect and component-based.
One objective evaluation reported no significant improvement in wrinkles/overall skin quality, though patient satisfaction differed; underscores mixed results across formulations and endpoints.
Review summarizes reported improvements in some skin measures and broad tissue-remodeling biology; quality and comparators vary widely. The authors note a surprising absence of rigorous modern clinical trials for GHK-Cu in anti-wrinkle applications despite widespread cosmetic use.