GHK Cu Peptide Serum 30 ml, Copper Peptide Serum with Hyaluronic Acid for Tightening, Collagen Boosting GHK CU Peptide Anti Wrinkle Serum Private Label Options Buy Copper Peptide GHK CU 12% Face Serum Anti Wrinkle & Collagen Booster 1oz 30ml Anti Aging Skincare Buy Now with Express International Delivery GoSupps.com Not all copper peptide serums are formulated the same Before you buy one, make sure you're actually getting pure GHK Cu at the right concentration not just a diluted blend. We spent GHK CU Copper Peptide, Face Serum, 1 oz (30 ml)