Selenium 200 mcg, 100 capsules, Bronson Laboratories Minerals are used by the body to stay healthy and support its many functions. Selenium is an essential mineral shown to provide antioxidant support and help boost the immune system. It contributes to the proper functioning of the thyroid gland. Active ingredients per capsule: Selenium (chelated amino acid) 200 mcg. Other ingredients: gelatin, microcrystalline cellulose, magnesium stearate, silicon dioxide. Administration method: 1 capsule per day. The capsule is swallowed with water, after the main meal of the day. Presentation: 100 capsules