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 Private Label GHK Cu Copper Peptide Firming Anti Aging Skincare Sets Hyaluronic Acid 2% + GHK Cu (Serum) G Lab Peptides Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin