The Vitamin B12 complex consists of Methylcobalamin, Adenosylcobalamin and Hydroxocobalamin. The combination of all 3 Vitamin B12 forms supports energy production and sustainable energy levels in the body. The human body can’t produce Vitamin B12 itself. As it usually derives from meat and dairy products, Vitamin B12 supplementation might positively effect in particular people, who follow a vegan diet. Vitamin B12 also contributes to a strong nervous system, immune system and to normal psychological function.