Carbonated water, malic acid, citric acid, cognizin citicoline, potassium benzoate (preservative), sucralose, caffeine (from innovatea green tea leaf extract), acesulfame potassium, natural flavors, niacinamide, n-acetyl-l-tyrosine, sodium citrate, cyanocobalamin (vitamin 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.