Redmond Rein Water is an all-natural powder that when added to water, encourages horses to drink, resulting in optimal hydration. It includes a blend of essential trace minerals, clay and electrolytes that horses need to stay hydrated and healthy. It also masks the alkaline taste of treated water, and horses love the flavor, which encourages them to drink more. Rein Water is 100-percent natural and comes direct from a mine in Redmond, Utah. A 5-pound bag retails for $23.99. Visit redmondequine.com.