Now Foods, Ultra B-12 liquid, 16 ozProduct Description 3 Forms of B 12 for Maximum Utilization 5,000 mcg of B 12 per Teaspoon Cellular Energy Boost Complete Liquid B Complex Considered as Dietary Supplement GMP Quality Assured High in Folic Acid 800 mcg Pleasant Tasting! Vegetarian Formula Product Benefits Vitamin B 12 has the largest and most complex chemical structure of all the vitamins. It is a water soluble vitamin with a key role in the normal functioning of the brain and nervous