GHK Cu Copper Peptide 1 g (Powder, >99% purity) Lrak Technologies GHK Cu peptide is the ultimate tool of biohacking your skin. Injectable GHK Cu peptide works as a repair signal inside your skin. And when the skin functions better, the visible effects follow: Reduced 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: The Science Behind the Copper Peptide Transforming Skin Repair and Regeneration Meto blog