Designed to give you a lift and elevate your hydration. nuun electrolytes contains caffeine from green tea extract, b-vitamins, and our signature blend of optimal electrolytes. nuun electrolytes contains clean ingredients, and is low in calories and sugar.Gluten-free - veganOne tube of nuun electrolytes contains 10 tablets. Each tablet makes one 16oz sports drink.Active Ingredients:Features:nuun electrolytes comes in 13 flavors: orange, lemon+lime, strawberry lemonade, fruit punch, tri-berry, grape, tropical, citrus fruit, watermelon, cherry limeade (with caffeine), mango orange (with caffeine), fresh lime (with caffeine), and wild berry (with caffeine).