Dietary Supplement. Certified potency. Premium quality. 100 mg riboflavin, Coenzyme precursor. Health & longevity through the healing power of nature - that's what it means to trust the leaf. Vitamin B2 (riboflavin) is a precursor to coenzymes involved in the growth and repair of skin and tissues lining the gastrointestinal tract, as well as the synthesis of amino acids. B2 is necessary for the formation of pigments essential to vision. Visit naturesway.com. Our vitamin B2 is carefully tested and produced to certified quality standards. Satisfaction guaranteed. Nature's Way vitamin B2 contains no artificial ingredients, preservatives, yeast, milk, lactose, wheat, sugar, soy or corn. (These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)