Daily Vitamin formula provides you with a balanced assortment of vitamins in each tablet. If you compare the Windmill Daily Vitamin formula to the One-A-Day Essential formula, you will find out that the two formulas are almost identical however, Windmill does not use artificial colors, flavors, or preservatives. Windmill?s promotional pricing will also give you the savings you are looking for. 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. Windmill is a trusted name that has been providing America with quality supplements for over 40 years.