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 Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Amazon.com : Koreana Skin GHK Cu Copper Peptide Hydrogel Face Mask Anti Aging Collagen Booster for Skin Repair, Firming, Fades Acne Scars & Redness. K Beauty Sheet Mask Treatment : Beauty & Personal Care GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link