Our most bioavailable natural Vitamin E Vitamin E is an essential nutrient in equine diets, serving as a powerful antioxidant that helps neutralize free radicals and protect cells from oxidative stress. While some horses get enough Vitamin E from quality forage and lush pasture, many do not. Since Vitamin E levels decrease when hay is cut and dried, horses without access to quality pasture, and those under stress or in heavy work may lack sufficient Vitamin E. Smart & Simple Vitamin E Liquid was formulated to address Vitamin E deficiencies using natural d-alpha-tocopherol, the most effective form for raising Vitamin E levels1. This unique vitamin E has been converted from a fat-soluble vitamin into a water-soluble vitamin, allowing for quick absorption into your horse's bloodstream to help achieve optimal levels. Ingredients: purified Water, d-alpha-tocopherol, Salt, Yucca Schidigera Extact, Potassium Sorbate (preservative), Citric Acid (preservative)