Nature Made® Super B-Complex is a combination of 8 essential B vitamins (thiamin, riboflavin, niacin, B6, folic acid, biotin, pantothenic acid and B12) which help support the production of cellular energy in the body.† B vitamins are also necessary for normal functioning of the nervous system.† Our Super B-Complex formula also contains vitamin C for antioxidant support and to help support the immune system.†