Vita Flex E-5000 is a highly concentrated source of essential Vitamin E for all classes of horses. This supplement delivers a minimum of 5,000 I.U. of Vitamin E per ounce and is specially blended with high-quality yeast culture and alfalfa meal for superior palatability and economical use. It is specially formulated to help provide antioxidant protection to all types of horses, as well as improve the antioxidant activity of equine diets. It is very easy to feed and the daily feeding levels can be adjusted easily according to each horse's needs. The 4 lb. pail is good for 128-day supply.