Found this recently in a French scientific reference site ( cat.inist.fr ) Polysaccharide-K (polysaccharide-Kureha; PSK), also known as krestin, is a unique protein-bound polysaccharide, which has been used as a chemoimmunotherapy agent in the treatment of cancer in Asia for over 30 years. PSK and Polysaccharopeptide (PSP) are both protein-bound polysaccharides which are derived from […]

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Here is a pdf document detailing a Portuguese study in 2002 of the supplemental use of Coriolus Versicolor with breast cancer patients. View Medical Study Report

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