Medicine Man Plant Co.'s The Immune Pill supports and maintains the immune system by harnessing the ancient knowledge of elderberry, echinacea, cordyceps mushrooms, and vitamin C used by cultures around the world.* These capsules contain the ideal variety and concentration of herbs needed to be effective. The special formula is blended and encapsulated in a state-of-the-art, cGMP facility in the USA from ethically treated, sustainably harvested, small organic farms in the plants' native lands.