Made with U.S. Grown, Double Extracted Organic Mushrooms Traveler's Size Dietary Supplement USDA Organic Certified Organic by the Washington State Department of Agriculture Gluten Free USDA Organic U.S. Grown and Processed BEE Friendly Guaranteed, Accurate Identity of Each Mushroom Host Defense is The #1 Best-Selling Mushroom Brand in The U.S From the Forest to Our Farm, to You Our liquid extracts provide rapid absorption and are great for those seeking immune support. Host defense extracts may be used directly from the bottle, or in water, warm tea, coffee, juice or smoothies. Host Defense MycoShield This refreshing spray combines five powerful polypore mushroom species, which contribute their unique properties to create a special blend that helps support the immune systems of travelers on the go.