GHK-Cu is stable at physiological pH (6.57.5) but dissociates below pH 4 or above pH 9, releasing free copper, which can be pro-oxidant if unbound
For that reason, we paid close attention to both testing practices and ingredient simplicity
Similar to potassium intake, calcium levels are harder to regulate when the kidneys malfunction

Ingredients Ingredients Key Ingredients Glutathione, Vitamin E, Vitamin C Full List of Ingredients Water, Glycerin, Pentylene Glycol, Niacinamide, 2,3-Butanediol, 1,2-Hexanediol, Glutathione, Betaine, Tromethamine, Gluconolactone, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ethylhexylglycerin, Sodium Citrate, Sodium Hyaluronate, Sphingomonas Ferment Extract, Citric Acid, 3-O-Ethyl Ascorbic Acid, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Sodium Hyaluronate Crosspolymer, Butylene Glycol, Hydrogenated Lecithin, Xylose, Polyglutamic Acid, Tocopherol, Cholesterol, Dipotassium Glycyrrhizate, Glycine, Cysteine, Sodium Cocoyl Isethionate, Helianthus Annuus (Sunflower) Seed Oil How To Use How To Use Apply a moderate amount to the skin and gently dab for better absorption