Citric acid, natural and artificial flavors, aspartamet (phenylketonurics: contains phenylalanine), maltodextrin (adds a trivial amount of sugar), contains 2% or less of the following: artificial color, magnesium oxide, acesulfame potassium, ascorbic acid (vitamin c), red 40, yellow 5, blue 1.
Phenylketonurics: contains phenylalanine.