Solaray Chaga Mushroom is an immune boosting superfood supplement. Chaga (Inonotus Obliquus) is a mushroom that typically grows on birch trees in colder climates across the Northern Hemisphere. At first glance, the mushroom doesn't look very appealing; actually, it doesn't even looks like a mushroom at all! Appearances can be deceiving, however, as this special mushroom packs a punch when it comes to its health value