Sensodyne toothpastes contain a number of ingredients, some of which are active ingredients. All Sensodyne products contain fluoride, which helps fight against cavities. The active ingredients in Sensodyne toothpastes include Novamin, potassium nitrate, and stannous fluoride. Novamin is a unique, clinically proven calcium formulation that builds a repairing layer over the teeth. Potassium nitrate soothes the nerves inside the teeth, while stannous fluoride helps build a protective layer to prevent triggers from causing pain. Other common ingredients in Sensodyne toothpastes include sorbitol, sodium saccharin, cellulose, xanthan gum, and humectants like glycerin and glycerol. These ingredients contribute to the overall effectiveness and sensory experience of the toothpaste