Solgar Reishi Shiitake Maitake Mushroom Extract capsules are formulation of three powerful traditional mushroom extracts with standardized extract and raw herb, that supply a high potency blend of these mushrooms.   Traditional Chinese Herbalists valued these mushrooms for over 2000 years as they have exhibited health supportive benefits and these mushrooms contain naturally occurring constituents, including the natural polysaccharide known as beta glucans. Grown on a wood medium for maximized nutrient profile and beta glucan activity.   Some of those benefits include their ability to support cardiovascular health; immune function, support skin health, stress management and help with vitality.