Two studies from Seoul National University (Republic of Korea) found the effects of GHK-Cu and GHK copper-free on cell differentiation on a skin equivalent cell culture system produced identical results

Water(Aqua), Glycerin, Acrylates Copolymer, **Niacinamide, Carrageenan, Butylene Glycol, 1,2-Hexanediol, Glucomannan, Hydroxyacetophenone, Cellulose Gum, Calcium Chloride, Ceratonia Siliqua (Carob) Gum, Allantoin, Gardenia Florida Fruit Extract, Polyglyceryl-10 Laurate, Potassium Chloride, Propanediol, Cyamopsis Tetragonoloba (Guar) Gum, Sucrose, Dipotassium Glycyrrhizate, Dextrin, Adenosine, Caprylyl Glycol, Arginine, Ethylhexylglycerin, Panthenol, Sodium Phytate, Sphingomonas Ferment Extract, **Glutathione, Phosphatidylcholine, Squalane, Acetyl Glucosamine, **Arbutin, **Alpha-Arbutin, **Ascorbic Acid, **Kojic Acid, Centella Asiatica Extract, Citrus Limon (Lemon) Fruit Extract, Sodium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Tocopheryl Acetate, Sodium Acetylated Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Potassium Hyaluronate
F., Leech, C
Research-use only
But what makes glutathione so special