From the Manufacturer:
Certified Vegan 100% Plant-Derived D3 Promotes Bone and Immune Health** Vitamin D aids in the absorption of calcium, helping to form and maintain strong bones.** This D3 is made form lichen, a natural source of Vegan D3.
Sunlight is needed for the body to naturally produce D3. However, people who spend a lot of time indoors, or use sunblock, may not produce sufficient levels of this fundamental vitamin. Supplements are needed to help fulfill the daily requirements
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.