GHK-Cu is a complex formed between glycyl-L-histidyl-L-lysine (GHK) and copper ions. The peptide occurs naturally in the human body and has attracted research interest because of its interactions with cellular and extracellular-matrix processes.
Studies have examined GHK-Cu in areas including collagen-related activity, wound repair, inflammation, tissue remodeling, and skin biology. These findings have contributed to interest in cosmetic and regenerative applications.
Evidence and regulatory status vary substantially depending on the formulation and intended use. Research findings should not be interpreted as proof of an established clinical treatment for every proposed application.
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