Acids in your diet can weaken tooth enamel over time, exposing a dull yellow coating and making it more susceptible to further damage. While any fluoride-containing toothpaste helps prevent this erosion, Intensive Enamel Repair, Pronamel's most advanced enamel care formulation, helps to actively repair acid-weakened enamel and protect teeth from future acid erosion. It works by blocking repair minerals that absorb deep into the surface structure of enamel to help repair micro-damage and rebuild enamel strength, leaving your teeth stronger and more protected.