Hair Restoration Serum Advanced GHK Cu Copper Peptide Formula Maneup 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 Peptide: What It Does for Body Composition and Metabolic Health Shed Copper Peptide Hair Growth Serum Take an Rx approach to hair health Amazon.com : GHK cu Copper Peptides Serum for Hair Hair Oils Copper Peptide for Skin, Hair & Scalp, Scalp Health, Regrowth Treatment for Thicker, Fuller Hair, Stronger, Reduce Aging Effect : Beauty