Crest Pro-Health Densify toothpaste rebuilds surface tooth density every time you brush to extend the life of your teeth by remineralizing enamel. Experience the 2X Enamel Protection System that remineralizes weakened enamel & prevents demineralization to prevent future density loss for a long lasting smile. Contains Fluoride for Anticavity Protection. Densify Daily for Best Results. From Crest, the #1 Toothpaste Brand in America.