Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or Ghk cu Copper Peptide Repair Serum Firming, Collagen Boost, Skin Renewal, Anti aging Face Serum Etsy Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com