ProNamel toothpaste is an enamel care toothpaste that has been specifically formulated to help protect against the effects of acid erosion - as well as relieving the sensitivity that can accompany acid erosion.. ProNamel products are formulated to re-harden acid-softened tooth enamel. Use ProNamel products to protect your teeth, keep them healthy and strong, and maintain their natural whiteness.. 9 out of 10 Dentists Recommend Sensodyne Toothpaste.