GHK Cu: The Science Behind the Copper Peptide Transforming Skin Repair and Regeneration Meto blog GHK Cu Peptrix Ph 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 (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous GHK Cu before and after : r Biohackers Ghk Cu results for hair loss pics what's ur thoughts? : r tressless