Carbonated water, contains 2% or less of: natural flavors, malic acid, beta carotene (for color), caffeine from natural sources, green extract, potassium benzoate (to ensure freshness), sucralose, gum arabic, ester gum, calcium disodium edta (to protect flavor), niacinamide (vitamin b3), retinol (vitamin a), calcium pantothenate (vitamin b5), cholecalciferol (vitamin d3), biotin, cyanocobalamin (vitamin b12), pyridoxine hydrochloride (vitamin b6).
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.