Our Ginseng provides 500 mg of ginseng blend extract . An adaptogenic supplement that can help bring balance to the body, and helps all systems of the body to work in synergy.? Ginseng can also be a natural way to relieve stress.? All Windmill supplements are manufactured in the United States in an FDA-inspected facility who?s 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.