Carbonated water, caramel color, natural and artificial flavors, phosphoric acid, citric acid, sucralose, acesulfame potassium (a non-nutritive sweetener), potassium citrate, caffeine, potassium benzoate (to protect flavor), red 40.
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.