Sensodyne Pronamel Mouthwash 250ml Sensodyne Pronamel Mouthwash when used with a flouride toothpaste gives extra protection against acid erosion. Benefits A unique fluoride mouthwash specially developed with dental experts to help re-harden acid-softened enamel. When used with a fluoride toothpaste, it provides extra-protection against the effects of future acid challenges, compared to brushing with fluoride toothpaste alone. Its unique Try-hydra Polymers when added to a fluoride solution provide greater fluoride uptake than a standard fluoride solution alone, and it can help re-harden enamel and strengthen teeth against tooth decay. It is alcohol free and contains mint flavour ingredients to freshens your mouth.