GHK CU Cosmetic for Healthy Skin Aging and Wrinkle Support Pure Prescriptions Amazon.com: Skin Perfection GHK Cu Copper Peptide Powder 99.7% Pure DIY Copper Peptides Serum for Face and Scalp Cosmetic Grade GHK Cu 1 Gram Creates Up to 100ml for Fuller Hair and 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 Copper Peptide 99.7% Pure Powder for DIY Face and Hair Serums 1 gram jar TikTok Shop