Solgar Vitamin B Complex with Vitamin C 100 tabs is a high-potency vitamin B complex that contains thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), and vitamin B6, as well as other B-group vitamins like folic acid, biotin (B7), and vitamin B12. The B vitamins are necessary elements for the body. They assist the body in converting food into energy, providing vitality throughout the day, and enhancing intellectual performance. They are also engaged in many other vital physiological functions, including the immune system and the nervous system. In addition to B vitamins, the complex contains vitamin C, an antioxidant vitamin that is needed for health and adds to major health benefits.