Sensodyne Pronamel Intensive Enamel Repair is proven to drive minerals deep into the enamel surface to actively repair acid-weakened areas of the enamel, for stronger, better-protected teeth. Over time, dietary acids in everyday foods can lead to your enamel thinning, allowing the yellow dull dentine layer underneath to show through. Once your enamel surface is weakened it needs extra care for the future. With twice-daily brushing, Sensodyne Pronamel Intensive Enamel Repair helps to: Actively repair acid-weakened enamel, lock in minerals to protect against the effects of acid wear, protect against cavities and keep gums healthy. Our unique re-mineralising formula delivers more vital minerals that absorb deep into the surface structure of the weak enamel, repairing and rebuilding micro-damage in the vulnerable areas of the teeth for stronger better protected teeth.