GHK-Cu

GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper Complex) is a synthetic peptide–copper complex used strictly as a research chemical, designed to deliver copper ions in a biologically active form for experimental studies on tissue repair, angiogenesis, and cellular regeneration; it is not an approved drug, and its safety, efficacy, and appropriate dosing in humans have not been clinically validated.