Fillers: none. Binders: cellulose and vegetable stearates. Lubricants: silicon dioxide, magnesium stearate, and magnesium trisilicate. All B vitamins and Vitamin C are especially coated with vegetable wax, cellulose, and Brazil wax to assure a slow and continuous release of these water soluable vitamins over a 6 to 8 hour period. Each batch is tested and meets this rigid standard. Contains no corn, soy, salt, yeast, wheat, milk and egg products, sugar, starch, or preservatives. Coating: pure vegetable cellulose.