Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Copper Peptide 10 GHK Cu 5 AHK Cu Hair Growth Serum GHK Cu Hair Foam Dropper RenewMe YoungerMe MD GH peptides + KLOW blend saved my hair. before and after pics. : r tressless 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 Copper Peptide (GHK Cu) Serum