Simply Super Organic Reishi Mushroom Powder Known as one of the most popular and beneficial types of fungi, we gently grounded reishi mushrooms into a smooth powder. Detoxify at the end of a long week using the earthy taste of Simply Super Reishi Powder. 100% Certified Organic | Vegan | Kosher | Gluten-free Key Nutrients: Potassium and Dietary Fiber How to Use: Tea: Craft a slightly bitter detox tea using reishi powder.