Made with U.S. Grown Organic Mushrooms Energy Support Dietary Supplement Certified Organic by the Washington State Department of Agriculture Non GMO Project Verified From the Forest, to Our Farm, to You About the Founder Paul Stamets Believes in the power of Mycelium, the network of thread-like cells that produces mushrooms. Paul wants everyone to share in the benefits from the Host Defense line of products. Mentored by the greatest mycologists of our time, he integrates and expands upon the knowledge of our ancestors. Host Defense Cordyceps uses activated, freeze-dried, Certified Organic mushroom mycelium, with a full spectrum of constituents: polysaccharides (beta glucans, arabinoxylane, glucose, xylose, galactose and cordycepic acid), glycoproteins, ergosterols, triterpenoids and other myco-nutrients, which are essential for Supporting Natural Immunity. The Source Full Spectrum of Active Constituents Grown & Processed in the USA Purity Assured Freeze Dried to Preserve Nutrients Bioavailable, Heat Activated Optimized, Peak Life Cycle Selection P Value Certified for Maximum Growth Host Defense Cordyceps Himalayan mountain peoples have long used Cordyceps during strenuous, high altitude activities. 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.