GHK Cu is a powerful copper peptide that helps restore what aging naturally slows down: repair, collagen production, and overall skin resilience. The result? Smoother texture. Firmer feel. Healthier looking skin and hair. Schedule Injectable GHK Cu: Beginner's Guide to Copper Peptide Most skincare works on the surface. GHK Cu works deeper as a biological signal that helps guide the body's natural repair processes. Research has shown its potential to support collagen production, tissue remodeling, GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes