Red Yeast rice from naturally fermented rice. Red Yeastrice is a very more popular product with elderly people and people who use it on a daily basis. Red Yeast is produced by the yeast strain Monascus pupureus, which is added to rice to start a natural fermentation proces which gives a red glow to the rice. The most important substance which is created as a result of the fermentation is monacoline K. We only sell high quality products, made from natural ingredients and trusted manufacturers. So as a customer you can be assured you get good worth for your money! We also sell many other nutritional supplements and natural foods.