Starting from Day 1, Advance to Healthier Gums and Stronger Teeth* with Crest Pro-Health Advanced. This toothpaste contains ActivClean Crystals for advanced stain prevention. Like all Crest Pro-Health toothpastes, Crest Pro-Health Advanced Sensitive & Enamel Shield Toothpaste strengthens teeth enamel on the inside, and protects outside of teeth against acids in everyday foods**. It is made with patented stannous fluoride and provides clinically proven protection. It provides 8 advanced benefits in 1, including: protection against plaque, gingivitis, tooth sensitivity, tartar, cavities + whitening and freshening breath. *vs. ordinary toothpaste with continued use. Starts fighting plaque and protecting enamel from Day 1. ** Acid erosion effects: Acids in everyday foods can soften and thin enamel, leaving teeth less white, weaker, and sensitivity.