Mushroom Supplement for Immune Support: This herbal mushroom supplement aids a healthy and balanced immune response with comprehensive support* 17-Species Mushroom Supplement: Our herbal supplement is made with Lion's Mane, Reishi, Chaga, Cordyceps, Maitake, Royal Sun Blazei, Mesima and more for unique mushroom support* About Host Defense: Host Defense Mushrooms was founded by renowned mycologist Paul Stamets; our mushroom mycelium is certified organic, non-GMO, gluten-free, and grown in the USA* Powered by Mushroom Mycelium: Our organic mushroom mycelium is grown on organic brown rice substrate; third-party studies show that mushroom mycelium and fermented rice substrate support your health* Mushroom Immunity Supplement: As a dietary supplement, take 1 full dropper bulb squeeze twice per day with food or on an empty stomach, or as recommended by your healthcare advisor*