Carbonated water, erythritol, apple juice concentrate, natural flavor, citric acid, malic acid, stevia extract (steviol glycosides), monk fruit extract, choline bitartrate, proprietary blend (l-theanine, caffeine, yerba mate extract, acetyl-l-carnitine hci, rhodiola root extract).
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.