Private Label Copper Peptide Serum Anti Wrinkle Hyaluronic Acid for Face & Neck 30ml Nourishing Skin Care Solution Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care 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 Before and After: See Fine Lines and Wrinkles Fade Fast Smooth Crepey Neck Skin with GHK Peptides Skin Lifting Creams and Serums to Help Neck Creases and Skin Discolorations Skin Biology 1 800 405 1912