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, the hydration powder contains 5 key electrolytes to help replace those lost when you sweat. Unlike Nuun's popular tablets, this fast-dissolving powder contains no effervescence—great for those who want a fizz-free water enhancer.