Thymex supports the thymus gland with bovine thymus Cytosol extract.* Supports a healthy thymus gland, the master gland of the immune system Can be used in combination with other immune support products* Take one tablet per meal, or as directed. Serving Size: 1 Tablet Amount Per Serving Cholesterol ... 5mg Vitamin C ... 5mg Proprietary Blend ... 370mg Calcium lactate, bovine thymus Cytosol™ extract, and magnesium citrate. Other Ingredients: Cellulose, ascorbic acid, and calcium stearate. Caution: This product is processed in a facility that manufactures other products containing soy, milk, egg, wheat, peanut, tree nuts, fish, and shellfish.