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Immune HealthHerbal SupplementBoosts Antioxidant ActivityPromotes Immune HealthSupports The Body's Natural DefensesScience-Backed Quality Since 1969Support your body's defenses with time-honored Echinacea from Swanson! Also known as the purple coneflower this powerful plant is packed with antioxidants! You may recognize its spiky head and purple petals in area gardens but it's been used for hundreds of years as an immune-supporting herb thanks to its naturally occurring polysaccharides alkamides and flavonoids.