Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now GHK CU Copper Peptide, Face Serum, 1 oz (30 ml) GHK Cu Peptide The benefits, side effects, and more [2026] Four reasons this serum belongs in your routine. GHK Cu Peptides that firm and support collagen renewal. Barrier support to keep your skin healthy and resilient. No injection. No needles. No clinic visit. Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com