GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule Pptido de cobre GHK GHK Cu Tripptido 1