21st Century Vitamin C-500 is a chewable dietary supplement containing 500mg of Vitamin C per tablet. This supplement helps neutralize free radicals and supports a healthy immune system through its convenient chewable tablet form. The product comes in a bottle containing 30 chewable tablets. As a dietary supplement, it provides an easy way to supplement daily Vitamin C intake. The chewable format makes it convenient for those who have difficulty swallowing pills. Vitamin C is an essential nutrient that plays a key role in immune function and acts as an antioxidant in the body.