A copper tripeptide structurally related to GHK-Cu, studied in early cosmetic and dermatological research.
AHK-Cu (alanyl-histidyl-lysine copper complex) is a copper-binding tripeptide structurally related to GHK-Cu. It has drawn interest in early cosmetic and dermatological research, though it is less extensively studied than its better-known relative.
AHK-Cu is not FDA-approved as a drug for any use. Research on this compound remains more limited than related copper peptides, and it is intended solely for laboratory and cosmetic-formulation research settings.