Vitamin E with Selenium, a balanced antioxidant supplement in a base of nutritional canola, flax, oat hulls and alfalfa, maltodextrin. Each scoop provides 2,000 IU Vitamin E and 1 mg Selenium CAUTION: Since toxicity can occur, do not overfeed Selenium. Check all feed for sources of Selenium,Can be harmful in excess, Consult your veterinarian.