Solgar® Selenium in Yeast 200 µg Tablets contain selenium, a mineral found naturally in soil. It is a necessary mineral because it strengthens the immune system and protects cells from oxidative stress caused by free radicals. Free radicals are unstable molecules that can damage the body's cells and are associated with premature aging. This mineral is found naturally in Brazil nuts, eggs, fish, and chicken. Adequate selenium levels will help maintain healthy hair and nails and support metabolism. Solgar® Selenium in Yeast 200 µg Tablets provide this mineral. At a dose of 1 a day, it contributes to:• Normal spermatogenesis• Maintaining healthy hair• Normal maintenance of nails• Normal function of the immune system• Normal function of the thyroid• Protecting cells from oxidative stress1 / day Vegetarian, Vegan, Kosher, Dairy FreeBrewer's Yeast (contains wheat, barley, sulfites), Selenium (from primary yeast). Anti-caking agent: Vegetable stearic acid