Mycology Research Laboratories Ltd.'s Reishi-MRL is not an extract of Ganoderma lucidum, but rather a powder containing both mycelium and primordia (young fruit body) cultivated in a sterilised (autoclaved) substrate free from contamination, pesticides, and heavy metals. This proprietary process yields a standardised product which is then sealed in plastic containers. With the mycelium and primordia intact, Reishi-MRL offers the full spectrum of natural bioavailable compounds, not seen in extracts or lyophilisation. Furthermore, film coating protects tablets from moisture, ensuring quality and a long shelf life. Quality Assurance International has certified this powder 100% Organic in the US, and it also meets the EU organic certification standard. Suitable for both Kosher and vegetarian use.