Skin can change when biology is supported, GHK Cu is a naturally occurring copper binding peptide thats been studied for its role in: Supporting collagen and elastin production, Improving skin 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 GHK Cu 99%+ Pure Peptide Amino Club Amino Club Buy high quality GHK Cu 50mg (copper peptide) from the UK's leading store Pure Peptides UK GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect Buy GHK Cu 100mg (Copper Peptide) 99% Purity, USA Made