Carbonated water, citric acid, taurine, sodium citrate, acesulfame k, aspartame, caffeine, artificial flavors, caramel color, niacinamide, calcium pantothenate, pyridoxine hcl, riboflavin, cobalamin.
Phenylketonurics: contains phenylalanine. Not recommended for children, pregnant or nursing women and persons sensitive to caffeine.