GHK vs GHK Cu Without Copper, Basic Peptide Neurogan Health Advanced Copper Peptide Serum 300mg High Purity (99.6%) GHK Cu Mul Sapnne Naturals 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 Two new treatments, now available Copper Peptide Skin Complex brings prescription grade GHK Cu Acetate to support skin repair and renewal at the cellular level. Lash Growth Serum combines bimatoprost and latanoprost, prescription strength