From the Manufacturer:
NOW® Calcium Carbonate is a calcium supplement containing one of the highest concentrations of elemental calcium available. The high calcium content makes it an excellent form for the support of healthy bones and teeth.*
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.