CORDYCEPS strengthens and protects the lungs, boosts immunity, is antibacterial, antiviral, is a prized sexual tonic and provides daily energy. Cordyceps is a highly prized mushroom in Chinese herbology - and quite a strange phenomenon in nature. The mushroom lives in a unique symbiotic relationship with a specific type of caterpillar. A spore of Cordyceps must land directly between the eyes of the caterpillar, then begins to spread its mycelia into the worm, eventually completely consuming it, but retaining the same shape. The resulting body of the mushroom exactly resembles the worm, yet is completely vegetarian.