Sensodyne Repair & Protect Whitening helps repair the vulnerable sensitive areas of your teeth. With twice-daily brushing it continuously helps repair, strengthens and protects teeth every day with the natural building blocks of teeth, while whitening them at the same time. Sensodyne Repair & Protect Whitening is proven to relieve dentine hypersensitivity. * With twice-daily brushing Forms a protective layer over the sensitive areas of sensitive teeth. Brush twice a day for lasting sensitivity protection.