Not all copper peptide serums are created equal And this is where a lot of people get confused. You'll see copper peptides on the label and expect amazing results but the Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com Multi Peptide + Copper Peptides 1% The Ordinary 1% GHK CU Copper Tripeptide Serum W Hyaluronic Acid Niacinamide Gluconolactone 1 Oz Etsy The Benefits & Risks of GHK Cu (WATCH BEFORE TAKING)