Mad Barn Natural Vitamin E provides supplemental Vitamin E for horses. This pure Vitamin E supplement contains no fillers. Vitamin E provides antioxidant support for cardiovascular health, and normal muscle function following exercise. This supplement also promotes healthy immune system function and healthy neurological function. Bulk formulation offers exceptional value - at a typical feeding rate (1000 IU/day), a 500 g package can last up to 300 days.