Clinically, PSK is used in many cancers, chronic hepatitis, upper respiratory tract infections, urinary tract infections and gastrointestinal infections. u functional components: * polysaccharopeptide (PSP) [peptide-linked polysaccharid molecular weight of approximately 100kDa, generally considered to be the main part of versicolor responsible immunomodulatory effects, it has anti-tumor properties. u effect: In recent years, a liquid extract of Coriolus versicolor are in preclinical and clinical proof has many biological activities, including stimulation of various immune cells, inhibit the growth of cancer, has been the development of these commercially extract as an effective oral use patented products, widely used in the medical treatment of cancer. The resulting improvement in the number of white blood cells u Function 1. 2. 3. stimulate the body's immune system during cancer treatment to alleviate discomfort 4. The adverse effects of chemotherapy drugs and radiation therapy to relieve arising 5. stable condition after treatment, and the patient's life quality and viability are positive help. u Mechanism: 1 for Used in the immune system: in vitro experiments, aqueous extracts of Coriolus versicolor, and found that it can activate T or B lymphocytes and monocytes and ball, macrophages, bone marrow cells, natural killer cells, and promote proliferation or cell-mediated and a number of antibody producing interleukin, interferon. Versicolor immunomodulatory effects, can recover some immunity due to tumor or chemotherapy caused low. 2. The anti-tumor effect: extract versicolor has toxic effects of selective cells that can fight some of the tumor cells for example: gastric cancer, lung cancer, liver cancer, breast cancer, bladder cancer, leukemia, lymphoma. It can inhibit tumor cell DNA synthesis and induce cancer cells to divide rather than death program. 3. antibacterial effect: versicolor display a wide range of anti-bacterial, anti-fungal effect. For example against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pneumoniae.