3 Ml 5 Ml 10 Ml Ghk Cu Vial Blue Copper Peptide Face Serum Anti Aging Moisturizing Repairing for Skin Care Serum 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 Blue Copper Peptide Ghk Cu 99% Care Ghk Cu 50mg 100mg vials Cosmetic Ingredient GHK GHK CU and blue copper GHK Cu and Methylene Blue infused Organic Vegan Shea Butter Blend AzulBotanicals Cellular Glow Copper Peptide GHK Cu Serum for Face