Vitamin B-2 is a component of the coenzymes FMN and FAD, which are important in the Krebs cycle and the electron transport chain, two of the body's interlocking, energy-producing cycles. Vitamin B-2 also plays a role in normal fatty acid and amino acid metabolism. The coenzyme FMN is responsible for regenerating glutathione, an important antioxidant. Supplement Facts for 100 mg serving size: 1 tablet Amount %DV Riboflavin (vitamin B-2) 100 mg Other Ingredients: Dibasic calcium phosphate, stearic acid, colloidal silicon dioxide, modified cellulose gum and magnesium stearate. Suggested Use: One tablet daily 100 mg SN0410 250 tabs