Vitamin B is a B vitamin, and there are more than 12 major B vitamins in the human body. Moreover, B vitamins can improve the immunity of the body and enhance the essential trace elements in the process of growth and development of the body. Vitamin B B1, B12, B6 are the more important vitamins, other vitamins can also play a certain correlation, these vitamins have improved eye vision, improve the role of anemia. Specific vitamin B role, there are the following aspects: 1, is a key substance in the process of sugar metabolism, can prevent neuritis, prevent seborrheic dermatitis. 2, and sugar, protein, fat metabolism is closely related, for acne and chicken pox relief is helpful.