Citric acid, maltodextrin**, aspartame, caffeine, contains less than 2% of: natural and artificial flavors, tricalcium phosphate, triethyl citrate, modified cornstarch, niacin, red 40, artificial color, calcium pantothenate and biotin (b-vitamins), acetic acid, pyridoxine hydrochloride (vitamin b6), blue 1, yellow 5, cyanocobalamine (vitamin b12). **adds a trivial amount of sugar.
Phenylketonurics: contains phenylalanine.