Water, citric acid, natural flavor, glycerin, potassium citrate, malic acid, contains less than 2% of sucralose and acesulfame potassium (sweeteners), red 40, blue 1 yellow 5, potassium sorbate (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.