Dr Noel's Mushrooms Organic Concentrated Reishi Powder restore your zen. Reishi, the mushroom of immortality, has been used for centuries to fight fatigue, reduce stress, promote deep sleep and calm the mind. Packed with adaptogens, including ganoderma triterpene, polysaccharides, and peptidoglycans, reishi rebalances the body and improves mental health, reducing inflammation, lowering blood pressure and strengthening the immune system.