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 Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience Ghk Cu results for hair loss pics what's ur thoughts? : r tressless So excited about this peptide! GHK Cu serum and scalp solution available Fascinating peptide that helps to prevent and reduce fine lines and wrinkles. Applied topically on the scalp for hair growth.