GHK-Cu 100 mg is a naturally occurring copper-binding tripeptide composed of glycine, histidine, and lysine complexed with copper (II). In research, it is studied for its wide-ranging effects on tissue regeneration, extracellular matrix remodeling, and inflammatory regulation. Studies suggest GHK-Cu may stimulate collagen and elastin synthesis, support structural protein production, and help modulate inflammatory signaling pathways — factors associated with skin integrity and wound healing. It has also been explored for its antioxidant activity, influence on gene expression related to cellular repair, and potential roles in connective tissue and skin renewal.