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Antioxidant Support200 mcg Per CapsulesOrganically BoundMineral SupplementSeleno ExcellScience-Backed Quality Since 1969Powerful Antioxidant for Prostate and Cardiovascular SupportPotent and 100% Organically Bound for High Biological ActivitySwanson SelenoExcell Selenium is 100% organically bound to provide high biological activity. This "high selenium yeast supplement" is a potent form of selenium providing unsurpassed cellular antioxidant support—especially for the heart and the prostate! Swanson Ultra is proud to bring you a potent 200 mcg of organically bound selenium in our SelenoExcell formula.