Carbonated water, high fructose corn syrup, natural flavor, citric acid, gum arabic, sodium benzoate (preserves freshness), caffeine, sodium citrate, red 40, glycerol ester of rosin, calcium disodium edta (to protect flavor).
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.