GHK CU Research Peptide Alpha Carbon Labs 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 GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution GHK Cu Hair Growth Spray Strengthen & Revitalize Hair Pure Tides Therapy 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