21st Century B Complex With Vitamin C Caplets For Energy & Immune Support is a combination of Vitamin C, B Vitamins which are essential to the body. This complex includes five of the B Vitamins: B1 (Thiamine), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic acid), B6 (Pyridoxine). B vitamins are interdependent upon each other and interrelated in function. B Complex vitamins are needed for the metabolism of carbohydrates, fats and proteins, which convert food into energy. In addition, they also help maintain the nervous system and body tissues. Calcium is the primary mineral responsible for strong bones and teeth. Calcium is a mineral that helps you maintain healthy bones and teeth, enables muscle movement, and regulates the transfer of messages by nerves from your brain to different parts of your body. Vitamin C is antioxidant nutrient which help in building and boosting the immunity by eliminating the toxin from the body. Vitamin C as a potent antioxidant, can prevent or slow cell damage caused by free radicals, hence prevent diseases. It also contributes to your immune defense system by supporting multiple cellular functions of your body's adaptive immune systems. Vitamin C helps encourage the production of white blood cells known as lymphocytes and phagocytes, which help protect the body against infection. Vitamin C helps these white blood cells function more effectively while protecting them from damage by potentially harmful free radicals. contains a unique blend of ingredients that help to increase the availability of these nutrients, ensuring that your body gets the most out of every dose.