GHK CU Copper Peptide Serum 30ml Firming & Revitalizing Face Serum with Anti Aging Benefits, Improves Fine Lines & Skin Texture, Deeply Nourishing & Brightening for a Youthful Glow (30ml) : Amazon.ca: Beauty Good skin starts with the right ingredients. We made the GHK Cu Peptide Serum for people who want real results without the clinical experience. Copper peptides, hyaluronic acid, niacinamide and more, in one GHK CU Topical Serum Kit 50ml Azur Skin Cellular Glow Copper Peptide GHK Cu Serum for Face Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 GHK CU Copper Peptide, Face Serum, 1 oz (30 ml)