Selenium 55mcg/ml/20ml Selenium is a vital mineral that supports antioxidant defense, thyroid function, metabolism, and immune health by protecting cells from damage and inflammation, potentially reducing risks for certain cancers, heart disease, and cognitive decline. Antioxidant Power: Helps produce antioxidant enzymes, fighting oxidative stress and free radical damage, which protects cells and may slow aging. Thyroid Health: Crucial for thyroid hormone metabolism and function, protecting thyroid tissue from stress. Immune Support: Boosts immune response, improves antibody production, and helps fight infections. Heart Health: May reduce cardiovascular risk by lessening oxidative damage to blood vessels. Reproductive Health: Supports fertility and reproductive functions in both men and women. Metabolism DNA: Plays a role in metabolism and DNA synthesis. Potential Cancer Prevention: Some research suggests it may lower risk for certain cancers, especially in deficient individuals.