21st Century B Complex with Vitamin C is a dietary supplement containing essential B vitamins combined with Vitamin C. This formulation of 30 caplets is designed to support energy metabolism, immune function, and help reduce fatigue. The product comes in a white plastic bottle containing 30 caplets. It is manufactured by 21st Century, a well-known supplement company. As this is a dietary supplement, it should be taken as directed on the label and stored in a cool, dry place. Always consult with a healthcare professional before starting any supplement regimen.