Reishi (Ganoderma lucidum) is a revered functional mushroom long used in Traditional Chinese Medicine, known as the “Mushroom of Immortality.” Rich in beta-glucans, triterpenoids, and polysaccharides, Reishi supports immune modulation, reduces inflammation, and promotes stress resilience. As an adaptogen, it helps the body restore balance under stress and may contribute to improved sleep quality, enhanced mood stability, and overall vitality.