Sentinel Selenium is a dietary supplement providing 100 micrograms of selenium per tablet, with 50 tablets per bottle. Selenium is an essential trace mineral that supports immune function, thyroid health, and acts as an antioxidant in the body. Key features: • 100 mcg selenium per tablet • 50 tablets per bottle • Dietary supplement format • Supports immune system function • Promotes thyroid health • Provides antioxidant benefits Selenium is a trace mineral that plays several important roles in the body, including supporting the production of antioxidant enzymes that help protect cells from damage. The recommended daily allowance for selenium in adults is 55 mcg per day. This supplement provides 100 mcg per tablet, which falls within common supplemental doses. The tablets come in an amber glass bottle with a safety seal to maintain freshness and protect the contents.