B-Complex Vitamins contains eight vitamins including Vitamin B1 (thiamine), Vitamin B2 (riboflavin), Vitamin B3 (niacin), Vitamin B5 (pantothenic acid), Vitamin B6 (pyridoxine), Vitamin B7 (biotin), Vitamin B9 (folic acid), and Vitamin B12 (cobalamin). These vitamins are essential for maintaining a healthy body.