Nature Made Super B Complex Eight individual B vitamins (thiamin , riboflavin , niacin , pantothenic acid, vitamin B6, biotin , folic acid, and vitamin B12) make up this family of nutrients that help convert the food you eat into cellular energy that fuels your body's many chemical reactions. B vitamins are also important for the normal functioning of the nervous system. We have many B-complex products to meet your unique needs, including Stress B-Complex, which includes vitamins C and E for antioxidant support, as well as zinc to help support the immune system.