Host Defense MycoShield Flavored Throat Spray supports daily immune health with mushroom mycelium from Agarikon Reishi Chaga Birch Polypore and Turkey Tail. This convenient spray is designed for rapid absorption and easy on the go use while also freshening breath with a pleasant flavor. Suggested use is three sprays into the mouth then swallow one to three times daily with food or on an empty stomach or as directed by a healthcare advisor. Host Defense products contain no fillers and are third party tested for quality and safety. Made by Fungi Perfecti a family owned company founded in 1980 by Paul Stamets this supplement is grown in Washington State using cultivated mushroom mycelium and fruit bodies.