Sensodyne Pronamel protects enamel from the effects of acid wear and everyday acids. No.1 dentist recommended brand to protect enamel from acid erosion. For healthy, stronger, better protected enamel. It helps minerals penetrate deep into the enamel surface. Everyday acids in your diet such as fruit, wine and fizzy drinks can weaken the enamel surface. Over time, weakened enamel can be more easily worn away and your teeth can get visibly thinner and transparent at the edges. Your dentist will be able to detect these early signs of acid wear. Pronamel has a unique formulation that actively strengthens and re-hardens weakened enamel, making it stronger, healthier and better protected from the effects of everyday acids. This toothpaste provides cavity protection and keeps teeth and gums healthy with twice daily brushing.