Reverse osmosis water, less than 1% of: erythritol, mono-potassium phosphate and di-potassium phosphate and magnesium lactate and calcium lactate (electrolyte sources), citric acid, vitamin c (ascorbic acid), fruit and vegetable juice (color), stevia leaf extract, natural flavors, vitamin b3 (niacinamide), vitamin b5 (calcium pantothenate), gum acacia. glycerol ester of rosin, vitamin b6 (pyridoxine hydrochloride), vitamin b12 (cyanocobalamin)