Citric acid, sodium citrate, potassium phosphate, aspartame**, maltodextrin, caffeine, contains less than 2% of acesulfame potassium, silicon dioxide, sugar*, magnesium oxide, calcium silicate, natural flavors, titanium dioxide (color), red 40, niacinamide, calcium pantothenate (pantothenic acid), pyridoxine hydrochloride (vitamin b6), yellow 5, biotin, cyanocobalamin (vitamin b12), blue 1. *adds a trivial amount of sugar **phenylketonurics: contains phenylalanine
*phenylketonurics: contains phenylalanine