Citric acid, aspartame**, caffeine, maltodextrin, magnesium oxide, contains less than 2% of: acesulfame potassium, calcium silicate, natural flavors, niacinamide (vitamin b3), sugar*, peach juice solids*, yellow 5, calcium pantothenate and biotin (b vitamins), pyridoxine hydrochloride (vitamin b12). *adds a trivial amount of sugar
**phenylketonurics: contains phenylalanine with caffeine†