Powerful Cellular Immunity Herbal Supplement Approved by Michael Tierra L.Ac, O.M.D Coriolus versicolor, commonly known as "turkey tails", is the most widely researched of all the immune-strengthening mushrooms. Well-known for its ability to support and enhance normal immune functioning, coriolus contains the polysaccharide beta-glucan, which has broad-spectrum immune enhancing activity, is a potent antioxidant and supports cellular health.