A balanced mix of bioflavonoids with quercetin. Designed to contribute to the maintenance of healthy blood vessels.* Provides select bioflavonoids including rutin and a standardized extract of quercetin.* Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans. Contains no artificial colors, flavors, or preservatives. Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.