From the Manufacturer's Label:
Quercetin is a powerful antioxidant that helps support your immune system. It provides a powerful antioxidant boost to help protect against harmful free radicals.
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.
Free Of: Yeast, wheat, corn, milk, egg, soy, glutens, artificial colors, added sugar, starch and preservatives.