GHK Cu Repairing Serum 30ml SumaNurica Copper Peptide Serum Benefits: Complete Guide to GHK Cu Glimmer Goddess Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 GHK CU Peptide Anti Wrinkle Serum Private Label Options 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. GHK CU Copper Peptide, Hair & Scalp Serum, 2 oz (60 ml)