Nuun Sport Hydration Electrolyte Powder Drink Mix is a perfect addition to your water bottle. This refreshing hydration drink mix hydrates better than water alone and can be used before, during, and after movement. Like Nuun Sport tablets, this hydration powder contains 5 key electrolytes to help replace those lost when you sweat. Unlike Nuun's popular tablets, this fast disolving powder contains no effervescense - great for those who want a fizz-free water enhancer.