Chaga is a tree-mushroom that grows most in the forests of Eastern Europe and Russia on a variety of trees such as birchwood, johanna and spruce, develops in the form of a colossus on a truncated tree that appears to be often reminiscent of charcoal. Research suggests that plant growth (sporocarp) grows near, which is very rare in nature. According to tradition, I. Obliquus was used as a remedy but exclusively for growing on the breasts, prepared as a tea preparation against various cancers, diseases of the hip, stomach, parotid glands. lung, gastric, skin, rectal and Hodgkin’s disease. I. Obliquus was recorded as a miracle cure for cancer described by nobleman Alexander Solzhenitsin in his semi-autobiographical novel, 1967, “Cancer Guard”.The wisdom of growing mushrooms and Obliquus on the breeze is supported by the finding of its key ingredient of betulic acid, naturally occurring in a number of different hereditary genera, but the primary source is found in a white birch tree (Betula pubescens – is considered a tree of life and fertility to many Eastern European and Siberian myths) according to which the name is given. The fungus I.obliquus that grows on the breeze contains a high concentration of betulinic acid that is absorbed from the tree bark.Chemical compositionBetulinic acid induces mitochondrial apoptosis in various rows of cancer cells and inhibits the development of the enzyme Topoizomerase – 2, which is crucial for the replication and wrapping of the DNA structure in cell replication. Betulinic acid is also associated with many biological activities including anti-retroviral, antiparasitic and anti-inflammatory activity. The most important activities are cytotoxic activity against various tumors currently being developed through access to the intervention program at the American National Cancer Institute. Other important components comprising I. obliquus include polysaccharides and sterols. High levels of phenolic compounds give it an extremely antioxidant properties as well as a melanin complex that is also identified as a substance with significant antioxidant and genotypic properties.The Activity of ChageRAK – I. Obliquus is widely used in Poland and Russia as a nationwide cancer drug, currently attracting an increasing interest among practitioners due to the significant source of polysaccharide, betulinic acid and other components with antitumor activity. In vitro studies of betulinic acid showed effective results against a wide spectrum of tumors: melanoma, neuroectodermal tumors (neuroblastoma, medulloblastomas, Ewing’s sarcoma) and malignant brain tumors, cervical cancer, human HL-60 leukemia, planocelular head and neck cancer including and those resistant to therapy. However, they have been found to have no influence on epithelial tumors such as breast cancer, colon cancer, small cell lung cancer, and kidney cancer, as well as T cell cell leukemia. Its anti-tumor activity is associated with its immediate effects on mitochondria and induction of apoptosis, regardless of the status of p53 in cell proliferation.According to clinical studies, betulinic acid is particularly interesting for brain tumors, it has to be noted that in one study cytotoxic effect was demonstrated against primary tumor cells in 4 patients of 4 medulloblastoma-tumor-tested specimens and 20 of 24 glioblastoma-tumor-tested specimens. Clinical experiences have shown that radiotherapy combined with certain antitumour agents becomes much less unpleasant and harmful, at the same time being much more effective. In-vivo studies confirm cytotoxic anti-viral anti-virus activity – I. Obliquus has traditionally been used to treat a variety of viral states. The betulin acid properties research has shown their effective antiviral activity in HIV cases.Consumption and dosage forms:The recommended daily dose of fungi amounts to 3 grams (juice). Chaga can be boiled as a tea so that the recommended daily dose of 0.5 to 1 liter of boiling water is consumed and drunk during the day. The pan can be boiled once more, but in a smaller amount of water, or eat. The recommended daily dose can also be consumed without cooking.