GHK Cu Peptide Regenerative & Cosmetic Research superPeptide 1% GHK Copper Peptide Serum Pure & Cimple Buy GHK Cu Copper Peptide Best Peptide for Skin Care Not all Copper Peptides are created equal If you've tried copper peptides before and saw no change, here is why: Concentration and Stability. Most serums use a diluted solution that barely scratches GHK Cu 50mg Peptide Sciences, Powder, Packaging Type: Bottle at 6500.00 box in Nagpur