Vitamin B Complex forte tablets 50 St contains a complex of all 8 B vitamins, now new with biotin and particularly highly dosed vitamin B12. Vitamin B1 contributes to normal cardiac function, while vitamins B2, B6, biotin and niacin contribute to the normal functioning of the nervous system and support healthy energy metabolism. Vitamins B6 and B12 also support normal mental function, such as concentration and memory. Pantothenic acid supports normal mental performance and contributes to the reduction of fatigue. Folic acid supports blood formation and immune function.