Twinlab B12 Dots contain 500 mcg of cyanocobalamin. Vitamin B-12 (cyanocobalamin), a member of the B-complex family, helps maintain healthy nerve cells and red blood cells, is needed to make DNA and plays an important role in natural energy production. Twinlab B-12 Dots are specially formulated micro tablets that dissolve quickly in the mouth before swallowing. Each delicious natural cherry-flavored dot provides 500 mcg of vitamin B-12.