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GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper-binding tripeptide originally isolated from human plasma. It serves as a vital carrier molecule, transporting copper ions into cells to support essential enzymatic processes. In research settings, it is primarily studied for its potent role in tissue remodeling, antioxidant defense, and its ability to modulate the expression of a vast number of human genes related to regenerative biology and skin health
