| Summary: | Topical remedies capable of protecting skin from damage and supporting its regeneration can improve skin’s health as well as its appearance. Small copper peptides have an excellent safety record and are widely used in cosmetic products. The most studied copper peptide is GHK-Cu (glycyl-L-histidyl-L-lysine), a small copper-binding peptide, naturally present in human plasma. Since its discovery in 1973, in vivo and in vitro studies have shown that GHK-Cu possesses a wealth of health-positive actions including improving wound contraction and epithelization, and increasing the production of growth factors and activity of antioxidant enzymes. Recently, gene expression profiling shed new light on diverse biological actions of GHK-Cu. The present paper discusses evidence of GHK-Cu and other small copper peptides possessing potent anti-cancer properties.
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