Carbonated water, citric acid, potassium citrate, gum acacia, aspartame, potassium benzoate (a preservative), acesulfame potassium, natural flavor, ester gum, yellow 6, brominated vegetable oil, red 40.
Manufacturer likely did not include an allergen statement; however, please double-check the product packaging and/or contact the manufacturer if you have a severe food allergy.