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Antioxidant Support460 mg Per CapsuleHerbal SupplementPowerful Herbal Antioxidant Traditional Support for a Healthy Immune SystemFull Spectrum® Whole Root FormulaScience-Backed Quality Since 1969Rejuvenate your liver and boost your vitality with Swanson Burdock Root! Traditionally used as a blood purifier and general system tonic burdock root is often recommended by herbalists for the support it provides for healthy immune system function. Each capsule supplies 460 mg of pure burdock root.