From the Manufacturer's Label:
The calcium complex in Bone Strength Take Care is derived from a natural plant form called Red Marine Algae (Litho-thammion) sustainably harvested from pristine shores along the Icelandic coastline.
Manufactured by New Chapter
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.
Gluten free; 100% vegetarian; no artificial flavors or colors.