UltraCruz Equine Vitamin C provides natural antioxidant and immune support for Horses. Vitamin C helps promote cartilage development and support healthy concentrations of other important elements, such as iron. It works closely with selenium and vitamin E to support the immune system and helps protect the body from the oxidative stress of Exercise, illness and certain medical conditions. This high quality vitamin C supplement is provided as a palatable Pellet or Pure powder.