Oxygen Gel Base: Aqua/Water, Hydroxyethyl Cellulose, Hexylene Glycol, Caprylyl Glycol, Phenoxyethanol, Citric Acid, Tetrasodium EDTA Oxygen Rx Powder: Magnesium Peroxide, Citric Acid, Xanthan Gum. Enzyme Activator Spray: Aqua/Water, Ethylbisiminomethylguaiacol Manganese Chloride, Hexylene Glycol, Caprylyl Glycol, Phenoxyethanol. pH Equalizer Spray: Aqua/Water, Sodium Bicarbonate, Caprylyl Glycol, Phenoxyethanol, Hexylene Glycol, Aroma/Flavor. Citric: Aqua/Water, Citric Acid, Caprylyl Glycol, 1,2-Hexanediol.