Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Asterwood Copper Peptide Face Serum GHK Cu 1 Fl Oz eBay 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 Peptide Topical Copper Peptides High Quality Skin Care Solution