Immune Support Supplement: This mushroom supplement supports immune system functions and immune cell strength, aiding the overall balance of the immune system* Herbal Immune Supplement with Mushroom: Our immune support supplement is formulated with Agarikon, "The Elixir of Long Life," to support immune system regulation* 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 Dietary Supplement: As a dietary supplement, take 1 mushroom capsule once daily with food or on an empty stomach, or as recommended by your healthcare advisor