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Our Vitamin D-3 provide 10 mcg (400 IU) of Cholecalciferol per tablet. Cholecalciferol, otherwise known as D3, is the vitamin D that is formed when the sun touches human skin.
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 45 years.