Host Defense® MycoShield® spray combines five powerful polypore mushroom species: Agarikon, Red Reishi, Chaga, Birch Polypore and Turkey Tail. These five mushrooms provide a unique "shield" of immune support*, available in a perfect traveler's size. Flavored with certified organic cinnamon oil, MycoShield offers a refreshing taste and is a must-have item for travelers on the go!