Chaga mushroom (Inonotus obliquus), it is a species of fungus found on the trunks of birch, burl-like appearance, with a cracked surface in different directions, with a cross-section of the black coloured. Contains triterpenes, sterols which are strengthening, improving well-being in cancer, enhance immunity. Applied externally (e.g. to the mucous membranes of the reproductive organs) has anti-inflammatory effects. It also is anti-inflammatory on mucous membranes of the digestive system.