Each tablet provides 1000mg D-Mannose. It is also commonly found in cranberry. Natures Aid D-Mannose tablets are vegan and gluten free. Each tablet provides 1000mg D-Mannose. IngredientsD-Mannose, Microcrystalline Cellulose, Dicalcium Phosphate Dihydrate, Colloidal Silicon Dioxide, Vegetable source Magnesium Stearate.DirectionsInitial dose: Take 1-3 tablets every 3 hours.