GHK Copper Peptide Concentrate, cumpr ingredient cosmetic 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 GHK Cu 10 g (10% Concentrate, 100,000 ppm) Lrak Technologies Your skin heals better when your barrier is strong. Topical GHK Cu peptide helps support that process