We cultivate our red Reishi (Ganoderma lucidum) mushrooms on wood-rich substrate, Duanwood (original wood logs), where Reishi grows naturally, resulting in a potent and high-quality reishi extract with the most bio-active constituents available. There are 2 types of bioactive compounds in Reishi: beta-D-glucans (type of polysaccharides) and triterpenes (triterpenoids). The glucans also may vary, depending on their structure. Mushrooms grown predominantly on grain substrate are rich in alpha-glucans, but mushrooms grown predominantly on a wood substrate are rich in beta glucans. The triterpenes in Ganoderma lucidum come from the use of wood as a substrate. Hence if Reishi has been cultivated on grain. it will have little or no triterpenes. Our Reishi Extract Powder is derived by extraction of the mushrooms fruiting bodies, which are proven to be much richer in active ingredients and more abundant in beta-D-glucans rich polysaccharides, than mushrooms extracted from mycelium. Temperature-controlled, duel extract technology is used to obtain the valuable functional components found inside the mushroom cells; the advanced production method supports the highest levels of active nutrients to be captured. Our Reishi Extract Powder is expertly standardised to an impressive 50% polysaccharides content and contains a significant amount of triterpenes and polyphenols. Our Reishi Extract Powder is made from 100% Reishi, using an enzymatic, temperature controlled dual extraction process to obtain the potent bio-active components found inside the mushroom cells. This advanced production method supports the highest levels of active nutrients to be captured. Our extract is free from fillers such as starch and grain and any kind of additives. You get 100% pure mushroom extract from our Reishi Mushroom Extract. Suitable for vegetarians and vegans. No additives, mycelium, grains or what so ever. Pure & Concentrated