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 antioxidant function, immune system health, and thyroid hormone metabolism. Key features: • 100 mcg selenium per tablet • 50 tablets per bottle • Supports antioxidant function • Aids thyroid hormone metabolism • Essential trace mineral supplement Selenium is a vital mineral that works with vitamin E in the body's antioxidant defense system. It helps protect cells from damage, supports proper immune system function, and plays a key role in thyroid hormone production. The recommended daily allowance for adults is 55 mcg per day. This supplement provides a convenient way to ensure adequate selenium intake, especially for those who may have limited dietary sources. As with any supplement, consult with a healthcare provider before use.