Colgate Sensitive Pro-Relief Enamel Rebuild toothpaste for sensitive teeth is clinically proven for instant and lasting† relief from sensitivity pain. With regular use, the Pro-Argin formula builds a long-lasting protective barrier that acts like a seal against sensitivity. Colgate Sensitive Pro-Relief Enamel Rebuild toothpaste for sensitive teeth helps reminieralize acid softened enamel, making it stronger and more resilient to future acid attacks. Plus it has the freshness you trust from Colgate. †For instant relief, apply directly to the sensitive tooth with fingertip and gently massage for 1 minute. Brush twice daily and use regularly for lasting sensitivity relief and cavity protection.