Methylsulfonylmethane (MSM) is a sulfur compound that helps support healthy joint function. OptiMSM is the pure and patented form of MSM. Dietary Considerations Wheat Free Dairy/ Milk Free Yeast Free Sugar Free Preservative Free Corn Free Free of Artificial Colors/Flavors Lactose Free Serving Size: 1 Tablet Servings Per Container: 200 Amount Per Serving MSM (Methylsulfonylmethane as OptiMSM) 1 g Other Ingredients: Vegetable cellulose, Vegetable modified cellulose, Vegetable magnesium stearate, Vegetable glycerin, Vegetable acacia Recommendation: Take 1 tablet up to four times daily with meals or water. Vegetarian Formula. Natures Way MSM contains no preservatives, yeast, milk, lactose, wheat, sugar, corn, or soy. SATISFACTION GUARANTEED. Freshness & safety sealed with printed outer shrinkwrap and printed inner seal. Do not use if either seal is broken or missing. Keep out of reach of children.