Immune Support Supplement: This herbal mushroom supplement supports antioxidant activity and an engaged and balanced immune system response* Chaga Mushroom Capsules: Our mushroom supplement is formulated with Chaga, a well-known beneficial mushroom species, to support health and antioxidant activity* 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* Herbal Dietary Supplement: As a dietary supplement, take 2 mushroom capsules once daily with food or on an empty stomach, or as recommended by your healthcare advisor