Host Defense Cordyceps uses activated, freeze-dried, Certified Organic mycelium, with a full spectrum of constituents: polysaccharides (beta glucans, arabino-xylane, glucose, xylose, galactose and cordycepic acid), glycoproteins, ergosterols, triterpenoids and other myco-nutrients, which are essential for Supporting Natural Immunity. Recently, professional athletes and fitness enthusiasts have discovered that Cordyceps may support increased oxygen uptake and higher endurance levels. People have also found that Cordyceps supports healthy sexual functioning. Cordyceps Supports energy and stamina, enhances the body's natural metabolic systems, supports a healthy libido, promotes healthy kidney function. augments oxygen uptake, and supports athletic performance.