GHK Cu Copper Peptide Shampoo Anti Hair Loss Shampoo Promotes New Hair Growth, 11.8 Fluid Ounce TikTok Shop Copper Peptide GHK Cu & Hyaluronic Acid Body Lotion Skin Firming 10 fl oz Ward What make blue? . The blue color of GHK Cu is due to the copper ion mineral bound with the peptide. The binding occurs through the donation of electrons 50mg GHK Cu Vial Blue Copper Peptide Face Serum Age Aging Moisturizing Repairing for Skin Care Serum Facial Care Kit d Copper Peptide Serum for Dull & Mature Skin VALNCIA Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum