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 Pptido de cobre GHK GHK Cu Tripptido 1 GHK Cu: The Midlife Peptide Your Skin Has Been Missing (and Why It's Not Just About Wrinkles) Relished Food Holistic Nutrition