Swanson B12 is a food supplement in liquid form intended for people with insufficient absorption of vitamin B12 from food. The strawberry-flavored concoction was enclosed in a dark bottle with a dropper. Contains vitamin B12 in the form of cyanocobalamin. 1/10 of a dropper (recommended daily dose) corresponds to 4000% of the reference dose for an average adult. Properties of vitamin B12 Vitamin B12 helps the nervous and immune system to function properly. It helps to reduce the feeling of tiredness and fatigue and plays a role in maintaining proper psychological functions. Vitamin B12 supports the proper production of red blood cells and the maintenance of proper energy metabolism. It helps maintain proper homocysteine ​​metabolism and plays a role in the process of cell division.