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Copper tripeptide
GHK-Cu
A copper complex of the tripeptide glycyl-L-histidyl-L-lysine, investigated in skin and tissue-biology research.
How it works
GHK binds copper ions. Laboratory studies examine how the complex influences extracellular-matrix remodelling, collagen-related processes and cellular responses to oxidative stress.
Research context
Much of the mechanistic evidence comes from laboratory and preclinical studies. Its use in some cosmetic formulations does not establish the safety or effectiveness of injectable or other research preparations.