Water, honey (adds a negligible amount of sugars), green tea, citric acid, aspartame (phenylketonurics: contains phenylalanine), black tea, natural flavors, ginseng extract, potassium sorbate and sodium benzoate (preservatives).
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.