GHK-Cu, also known as Copper Tripeptide-1, is a naturally occurring peptide composed of glycine, histidine, and lysine complexed with a copper ion. It plays a significant role in skin regeneration and repair. Studies have demonstrated that GHK-Cu can stimulate collagen and glycosaminoglycan synthesis, enhance wound healing, and exhibit anti-inflammatory and antioxidant properties. These attributes make it a valuable ingredient in anti-aging skincare formulations, where it contributes to improved skin elasticity, reduced fine lines, and enhanced skin clarity.

In hair care, GHK-Cu has shown promise in promoting hair growth and increasing hair follicle size. It is believed to prolong the anagen (growth) phase of hair follicles and reduce hair loss by inhibiting follicle apoptosis. These effects are attributed to its ability to modulate gene expression and promote angiogenesis around hair follicles.