Carbonated water, citric acid, natural flavor, potassium citrate, taurine, potassium benzoate (preservative), aspartame, acesulfame potassium, inositol, natural caffeine, niacinamide (niacin), calcium d-pantothenate (pantothenic acid), cyanocobalamin (vitamin b12).
Phenylketonurics: contains phenylalanine.