Reishi mushroom (Ganoderma lucidum) has been called the "elixir of life" and used to increase "chi" (life force energy). It is well-known for its beneficial effects on balancing the immune system. Standardized extracts are guaranteed to contain a specific quantity of a known marker compound, and are laboratory tested to insure consistent potency. Nature's Answer capsules feature standardized extracts enhanced (Holistically Balanced) with the highest quality of organic, responsibly wildcrafted or cultivated herbs, which maintain the naturally-occurring constituents found in the plant. Manufactured to cGMP (current Good Manufacturing Practices) standards; Free of synthetic ingredients.