Purified water, contains less than 2% of citric acid, sodium hexametaphosphate, natural flavor, green tea extract, ascorbic acid (to protect color), aspartame, potassium sorbate (preservative), phosphoric acid, black tea extract, acesulfame potassium, calcium disodium edta (preservative).
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.