Natural Factors Complete B 100 mg Time Release tablets are designed to gradually release their contents over an eight hour period for maximum absorption. Although each B vitamin has a unique role, they work together as coenzymes to metabolize proteins, carbohydrates and fats and to provide the body with energy. B vitamins help synthesize brain chemicals which support mood and nerves. They are essential for healthy skin, hair, eyes, mouth and liver. Water-soluble B vitamins are not stored in the body and must be replenished daily. Natural Factors Complete B is nutritional insurance to fortify your daily diet with important vitamins and coenzymes. B vitamins are especially important for elderly people and for those with active lifestyles, poor diets, or who smoke or drink alcohol. Natural Factors Vitamin B products are derived from a natural bacterial fermentation of beets and/or rice bran. All Natural Factors Vitamin B products are manufactured to superior quality control standards and use the finest ingredients.