Support your body’s defenses with Echinacea from Swanson Premium! 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-boosting herb, thanks to its polysaccharides, alkamides and flavonoids. Each capsule contains 400 mg of Echinacea. Two month supply.