UltraCruz Equine Selenium is an equine dietary supplement that provides organically chelated selenium, an important antioxidant and trace mineral for Horses that provides the body with nerve, Muscle and joint support. In addition to reducing oxidative stress, selenium is crucial for supporting breeding performance and healthy metabolic function. Performance Horses participating in rigorous activity can benefit from additional antioxidant supplementation in their diet. This palatable powder formula may be especially beneficial for Horses living in selenium deficient regions.