Made with U.S. Grown Organic Mushroom Mycelium Gluten Free Non GMO Project Verified Dietary Supplement Certified Organic by the Washington State Department of Agriculture From the Forest, to our Farm, to You™ Host Defense ® is the 1 Best-Selling Mushroom Brand in the U.S^ Identity Guaranteed ™ - Guaranteed, Accurate Identity of Each Mushroom Heat Treated to Proper Temperature to Ensure Safety & Bioavailability Produced Under the Direct Supervision of Paul Stamets, D.Sc. BFF Friendly Helping People and Planet Host Defense ® Breath e is a complementary blend of Chaga, Reishi and Cordyceps. Chaga is well known in Eastern Europe and Siberia for its support of skin and lung functioning. Reishi has long been used for centuries in China to support breathing, cardiovascular system and endurance. Cordyceps has long been celebrated in Asia as a lung tonic and energy support. Together, they strengthen respiratory function in normal, healthy individuals. Host Defense ® Breathe uses activated, optimally dried, Certified Organic mushroom mycelium, with a full spectrum of constituents: >55% (550 mg/serving) polysaccharides and an array of extracellular constituents, including prebiotics for the microbiome, essential for Supporting Natural Immunity. ^Source: SPINSscan Natural / Natural Products Supermarkets > $2MM / Total US - Natural Channel / Mushrooms Ingredient Report / 52 Wks Ending 3/25/2018.