am+pm 5% B5+GHK Cu Hydrating Serum Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now China Copper Peptide(GHK Cu) CAS:89030 95 5 Manufacturers Free Sample Alfa Chemical Copper Peptide (GHK Cu) Supplier Cosmetic Ingredient for Formulators Creative Peptides