Sentinel Selenium is a dietary supplement containing 100 micrograms of selenium per tablet, with 50 tablets per bottle. Selenium is an essential trace mineral that supports immune system 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 • Essential trace mineral • Antioxidant support Selenium is a vital mineral that plays several important roles in the body, including supporting thyroid hormone production, DNA synthesis, and protecting cells from oxidative damage. The recommended daily allowance for selenium in adults is 55 mcg per day. This supplement provides a convenient way to ensure adequate selenium intake, especially for those who may not get enough through diet alone. The amber bottle helps protect the supplement from light degradation and maintains product integrity.