1. Sensodyne Repair &Protect toothpaste can actually repair sensitive teeth. 2. The active ingredient in Sensodyne Repair &Protect,stannous fluoride,builds a repairing layer over the vulnerable areas of your teeth,to help protect from pain. 3. With twice daily brushing,Sensodyne Repair &Protect provides proven effective lasting relief from the twinge of sensitivity. 4. It offers everyday cavity protection with fluoride.