Carbonated water, tartaric acid, citric acid, natural flavor, sodium benzoate (preserves freshness), caffeine, sucralose, gum arabic, acesulfame potassium, citrus pectin, glycerol ester of rosin, calcium disodium edta (to protect flavor), potassium sorbate.
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.