Choleast 900 120ct by Thorne ResearchCholeast contains Monascus purpureus, a red pigmented yeast grown on rice. Numerous studies in China and the United States have demonstrated that red yeast rice preparations are helpful in maintaining healthy blood cholesterol levels. This is important, as maintaining optimal cholesterol levels has been shown to be one component of maintaining good cardiovascular health. Choleast 900 contains consistent amounts of the naturally occurring monacolins