Echinacea purpurea, also known as the purple coneflower, has been one of the most popular herbal supplements used in both the United States and Europe for over a century.
Zinc is an essential mineral for many areas of general health. Besides assisting other minerals in supporting bone and nervous system health, zinc's benefits to the immune system are becoming more widely known.
Numerous studies have shown that mushrooms possess potent immunostimulating properties.