Nature’s Bounty Echinacea is a popular year-round herbal supplement for immune support.* Echinacea is one of the world’s leading herbs used for immune support and overall wellness.* Echinacea has been used as a holistic herbal ingredient for centuries. It has been traditionally used for a variety of reasons, including for immune health, which dates back to the American Eclectics in the early part of the twentieth century.*