Host Defense Mushrooms Mushroom Mycelium Powder USDA Organic Dietary Supplement Certified Organic by the Washington State Department of Agriculture Grown Under the Direct Supervision of Paul Stamets, D.Sc. Non GMO Project Verified Gluten Free Vegan U.S Grown Freeze-Dried Heat TreatedThe Power of Mushroom MyceliumMushroom mycelium is Earth's natural internet. This network of threads permeates soil and plants throughout the world, supporting the health of our ecosystem, culminating in the formation of mushroom fruiting bodies. Turkey Tail Mushroom Mycelium helps to promote immune function and its prebiotics offer support for a healthy microbiome. Freeze drying ensures optimized health-supporting power!