Copper Peptide (GHK Cu) Supplier Cosmetic Ingredient for Formulators Creative Peptides Introduction GHK Cu is a copper peptide complex formed from the tripeptide glycyl L histidyl L lysine bound to copper. This compound has garnered significant attention in both laboratory and formulation research due to its critical role GHK Cu HGH & Peptides Deus Medical GHK Cu Peptide: Turn Back the Clock Naturally Calibrate Hydration Rigid flexible nanocarriers loaded with active peptides for antioxidant and anti inflammatory applications in skin ScienceDirect