UltraCruz Equine Electrolyte Supplement for Horses is a comprehensive blend of important macro- and micro-minerals designed to restore electrolyte levels in horses after vigorous exercise or during hot weather. Horses lose electrolytes during work, mainly in the form of sweat. A horse that sweats a lot during hot weather or exercise is at risk for a negative electrolyte balance because of the mineral loss that can occur. Supplementing electrolytes helps to replenish electrolytes lost during strenuous exercise, supports muscle development and post-exercise recovery, and may also promote proper hydration by stimulating thirst.