GHK Cu Facial Serum Empower Pharmacy Copper Peptide Skincare Regenerative Skincare Vitali Skincare InfiniWell, GHK CU, 30 ml 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 7% GHK Cu Cosmetic Ingredient Accelerant Skin Biology 15 ml GHK Copper Peptide GHK Cu Tripeptide 1