Herbal supplement. Standardized to 37% anthocyanosides. Source Natural Bilberry Extract, also referred to as blueberry, is a potent extract yielding key bioflavonoids called anthocyanosides. A controlled extraction process guarantees at least 37% anthocyanosides. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease). Suitable for vegetarians and hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.