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Ingredient Type: Constituent

Also Known As: Bioflavonoid, Bioflavonoid Complex, Bioflavonoid Extract, Citrus Bioflavonoid, 3,3′,4’5,7-Penthydroxyflavone, Sophretin

Quercetin is a flavonol (a type of flavonoid, an organic compound i, n plants) found in many fruits, vegetables, leaves, and grains.  It is known for its antioxidant properties, which helps fight particles in the body that cause cellular damage.  Quercetin can also help stabilize the cells that release histamine in the body.

Quercetin is used in health supplements today as an antioxidant and an antihistamine.


In the meantime see the entry for quercetin, the Michigan Medicine Health Library entry for quercetin, the WebMD entry for quercetin, or the RXList entry for quercetin for more information.