GHK CU Copper Peptide, Hair & Scalp Serum, 2 oz (60 ml) GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes GHK Cu (2mg x 60 Capsules) (Copper Tripeptide) Peptides Alpha 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 Oral Liposomal Copper GHK Liposomal GHK Cu Supplement