GHK-Cu — the copper complex of the tripeptide glycyl-histidine-lysine — appears in two very different marketplaces: as copper tripeptide-1 in cosmetic creams, and as an injectable product marketed by peptide clinics. Bot
Copper peptides are the rare peptide discussed on skincare counters as well as in peptide-science journals. The compound behind most of that packaging is GHK-Cu — glycyl-L-histidyl-L-lysine bound to copper — a small trip
A copper-binding tripeptide found in human blood in 1973 has moved from wound-healing trials to cosmetic creams and, lately, injectable clinics. The laboratory story is real. The human evidence is smaller, older and more fragile than marketing suggests.