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Echinacea supplements that boost the immune system

Echinacea is a plant that originally comes from North America, that is traditionally used to enhance the immune system. Therefore, it should be used immediately at the onset of a cold. ESI offers a full line of products made with Echinacea and other herbal substances, in capsules, extracts, sprays, and syrups. Taking supplements that contain Echinacea boosts the immune system and helps to prevent common colds and the flu.