Mushrooms Made with U.S. Grown, Double Extracted Organic Mushroom Mycelium Traveler's Size Gluten Free Dietary Supplement USDA Organic Certified Organic, Washington State Dept. of AgricultureFrom the Forest, to our Farm, to YouOur extracts provide rapid absorption for those seeking immune support. Host Defense extracts may be used directly from the bottle, in water, or in your favorite drink.Host Defense MycoshieldFive polypore mushroom species combine their unique properties for powerful stimulation of natural immune function. Essential oil of Sweet Birch, a tree we rely on as a home for mushrooms, imparts a cool and minty flavor.Host Defense is the #1 Best-Selling Mushroom Brand in the U.S♦ Identity Guaranteed - Guaranteed, Accurate Identity of Each Mushroom USDA Certified Organic Produced Under the Direct Supervision of Paul Stamets, D.Sc. Bee Friendly - Proceeds Help to Save Bees, Trees, People & Planet♦Source: SPINSscan natural/natural products supermarkets>$2mm/Total US - natural channel/mushrooms ingredient report/52 wks ending 9/10/2017