Selenium is required to produce glutathione and helps with immune system function. Selenium is a trace mineral that is incorporated into important antioxidant enzymes. These enzymes aid the body in fighting cellular damage from free radicals. Metabolic Maintenance's selenium is in the amino acid form L-selenomethionine, which research indicates is better absorbed and more bioavailable compared to other forms of selenium.* • Potent mineral antioxidant • Valuable cofactor in detoxification pathways* • Nourishes and protects the immune system* Ingredients Serving size: 1 Capsule Servings per container: 90 Ingredient Quantity Vitamin C 250 mg Ascorbic Acid and Ascorbyl Palmitate 250 mg Selenium 200 mcg L-selenomethionine 200 mcg Other Ingredients: Vegetarian cellulose capsule, L-leucine. Dietary considerations Gluten free Dairy free Egg free Tree nut free Peanut free Suggested use Suggested Use: Take one (1) capsule daily with a meal as a dietary supplement, or as directed by a healthcare professional. Serving Size: 1 Capsule Amount Per Capsule Vitamin C ... 250mg (as Ascorbic Acid) Selenium ... 200mcg (as L-Selenomethionine) Other Ingredients: Vegetarian cellulose capsule, L-leucine. This product is egg free, gluten free, nut free and dairy free. Warnings Precautions: Pregnant or lactating women and individuals taking prescription medications should consult with a healthcare professional before taking any supplement.