Solgar® Echinacea is one of their premium standardised full potency botanical extracts. Echinacea has been used by Native Americans for centuries and is traditionally used to support the immune system. As a botanical supplement, Echinacea is especially popular during times of seasonal changes. In Solgar Standardised Full Potency botanical extracts, the active ingredients are always to exactly the same strength, the results do not differ from bottle to bottle. The raw herb powder is added to the majority of our Standardised Full Potency products to ensure that all of the synergistic compounds present in the original herb are also present in the final product providing the best of both worlds.