Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule 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 Cu Peptide Skin Cream Levers.Health GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution GHK Cu Topical Hair Foam LeadWest Medical