Dietary supplement. 500 mg Vitamin C as seven mineral ascorbates. 250 mg Calcium. Emergen-C is so much more than just Vitamin C! The foundation of Emergen-C is built on seven mineral ascorbates. These mineral ascorbates of potassium, calcium, magnesium, manganese, sodium, chromium & zinc provide your body with 500 mg of vital, life-sustaining Vitamin C in a non-acidic, stomach-friendly formula. Unlike ordinary Vitamin C supplements, Emergen-C also has a total of 32 active mineral complexes along with key B Vitamins. All combined, Emergen-C is a potent blend of antioxidants, vitamins, minerals and other micronutrients that support healthy metabolic function. Vitamin C: Essential in the production of collagen, the main constituent of connective tissue of the bones, which helps maintain the strength and flexibility of the bones. Calcium: Essential for maintaining bone strength. Bones are constantly being remolded and require calcium to build up new bone mass. Vitamin D: Helps maintain a proper balance of calcium and phosphorus to help bone growth and strength. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) Made in the USA.