Our Red Yeast Rice provides 600 mg of pure red yeast rice per tablet. Red Yeast Rice is a natural product that has been used by Asian traditional herbalists for centuries. Red Yeast Rice promotes healthy cholesterol, supports circulation and digestion.? For additional formula information, view the Supplement Facts panel. All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose GMPs (Good Manufacturing Practices) are independently verified by qualified certification organizations. Free of artificial colors, flavors and preservatives, Windmill is a trusted name that has been providing America with quality supplements for over 40 years.