THE BEST VITAMINS FOR OVER 50 YEARS: For more than five decades, Mason Natural has produced quality vitamin supplements under cGMPs (current Good Manufacturing Practices) and adhering to US guidelines. All ingredients and finished goods are subjected to rigorous analytical testing, inspections and quality auditing. Support Wellness: Explore our full catalog of products including collagen, probiotics, melatonin, fish oil, ginkgo biloba, antioxidants, zinc, ginger and calcium. Vitamin B2 is an essential vitamin because it supports many enzymatic chemical reactions in the body that may contribute to cellular energy production but are also important in supporting the function of neurotransmitters, hormones, digestive enzymes, mineral metabolism, and many more. B2 Vitamin contains 100 mg of riboflavin per tablet and is guaranteed to have no added milk, egg, fish, wheat, gluten, crustacean shellfish, tree nuts, peanuts, sugar, starch, yeast, corn, dairy, fragrance, artificial flavors, colors or preservatives. Sodium free, gluten free and soy free. Mason Natural Vitamin B2 100 mg once a day tablets may help support the conversion of food into energy. Vitamin B2, also known as riboflavin, may help support healthy cardiovascular, pulmonary, and central nervous systems.Best Sellers Rank: See Top 100 in Health & Household. Age Range (Description): Adult. Flavor: Unflavored. Primary Supplement Type: Vitamin-b. Item Form: Tablet. Brand: MASON NATURAL. Country of Origin: USA. : B008FCKLK4. Manufacturer: Mason Vitamins Inc. Date First Available: June 27, 2012. Package Dimensions: 3.54 x 1.85 x 1.77 inches; 2.4 Ounces.