Carbonated water, citric acid, potassium citrate, potassium benzoate (preservative), gum acacia, caffeine, sucralose, acesulfame potassium, green tea extract, natural flavor, ester gum, niacinamide (b3), calcium d-pantothenate (b5), pyridoxine hydrochloride (b6), vitamin a palmitate, biotin, and cyanocobalamin (b12).
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.