Description 250 mcg of B-12 50 mg Blend of Guarana Seed, Kola Nut & Green Tea Extract per Serving Aids in the Conversion of Food into Energy Energy Health Dietary Supplement At Nature's Bounty, we are committed to your health. For nearly 50 years we have been making trusted products, backed by science, and made with only the purest ingredients...guaranteed. So you can get the most out of life every day. Natural Colors & Flavors Guaranteed Quality Laboratory Tested Vitamin B-12 supports energy by converting food into energy.