Life Extension Se-Methyl L-Selenocysteine - 200mcg - Advanced Form of the Antioxidant Selenium – Selenium Supplement Pill for Immune Health - Non-GMO, Gluten-Free, Vegetarian – 90 Capsules

Selenium is an essential micronutrient for human health. In the body, it is incorporated into enzymes and other proteins to make vital compounds known as selenoproteins. Perhaps the best-known selenoprotein is the antioxidant enzyme glutathione peroxidase. Each molecule of glutathione peroxidase requires four selenocysteine units and catalyzes a reaction in which a free radical is scavenged by glutathione. By balancing cellular oxidation and reduction reactions, glutathione peroxidase and other selenoproteins protect cells and tissues from oxidative damage and support healthy cell function and cell division