Birch Fungus CHAGA

The folk uses of chaga address many complaints such as gastritis, ulcers, TB of the bones, as well as cancer.


Pharmacopoeia Articles How the fungus is collected and prepared. Its appearance indications, organoleptic, numerical indicators, quantitative determination, packing, shelf life standardized in Russia parameters.


Chaga for cosmetics Chaga (Inonotus obliquus (Pers.) Pil.) becomes very popular among women in Japan thanks to the new fundamental researches of the birch-tree-fungus made by Japanese scientists. Pigmental spots and wrinkles go away in a month when treated by the fungus that heals cancer! IN JAPANESE

Inonotus obliquus

Description and History of Use

Chaga, Inonotus obliquus is a polypore fungus ( Aphyllophorales) which grows on birch (Betula spp.) The fungus produces a black perennial woody growth called a conk and is a member of the Basidiomycetes (true mushrooms). It is harvested in the wild in Russia and commonly used for the treatment of a number of conditions including cancer, gastritis and ulcers.

Pharmacology and phytochemistry

An Inonotus extract showed strong antivral effects with influenza virus A and B (1). Two phenolic compounds, hispidin and hispolon were found to be the active principles.
One report from Russia suggests the cytotoxic effects of Chaga extract against HeLa cells (2). In other reports, related Polyporaceae show potent antitumor effects and the active principles have been identified as ? (1 -> 3)-D glucopyrans and ? (1 -> 6)-D-glucosyl branches with molecular weight of 500-2000 kDa (3). These polysaccharides have promising anticancer activity against a number of cell lines. This is clearly a traditional medicine with potent biological activities.


  • N.A. Awadh et al. 2003 Fitotherapis 74: 483-5
  • J. Rzymoska 1998. Boll Chim Farm. 137:13-5.
  • J. Zjawlony 2004 J.Nat. Prod. 67:300-310

Summary prepared by

Thor. Arnason
Professor of Biology
University of Ottawa
for Andy One
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