SE AdvanceSupport for Selenium deficiency that also contains Vitamin E for more Blood Flow May help reduce Road Soreness and Increase Recovery Time of Working Muscles Ideal for Situations with lower quality hay or over eating hay Guaranteed Analysis per oz.: Selenium (Min) PPM0. 18 Ingredients: Soybean Meal, Rolled Flaxseed, Magnesium Mica, Vitamin E Supplement, Ascorbic Acid, Active Dry Yeast, Selenium Yeast, Alfalfa Meal, Ascorbic Acid, Vitamin D3 Supplement