B vitamins are water soluble, meaning any excess is not stored, but excreted or lost through perspiration. B vitamins must be continually replaced to maintain proper blood levels, in order to supply the tissues with the needed nutrients required for the necessary physiological and biochemical cycles in which they are involved. B vitamins are active in providing the body with energy by transforming carbohydrates into glucose used by the body to produce energy. Swiss Herbal's extensive line of B vitamins are suited to one's individual needs and are YEAST FREE and HYPO-ALLERGENIC containing no artificial colour, milk (dairy), soya, sugar, starch, salt, wheat, corn and are gluten-free. Cyanocobalamin (Vitamin B12) is important for the metabolism of protein, fats and carbohydrates, as well it is important in the formation of red blood cells. Vitamin B12 aids in the production of DNA/RNA, and is needed for the metabolism of nerve tissue. Vitamin B12 is also important for the Spinal Cord.