From the Manufacturer’s Label:
Support for Healthy Aging
pTeroPure® Pterostilbene is 99% pure pterostilbene, a compound that occurs naturally in small amounts in fruits such as blueberries, huckleberries and grapes. Pterostilbene is similar in structure to the healthy compound resveratrol.
Manufactured by Source Naturals
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.
Contains No: Yeast, dairy, egg, gluten, soy, wheat, sugar, starch, salt, preservatives or artificial color, flavor or fragrance.