Sensodyne Rapid Relief toothpaste contains stannous fluoride that forms a protective barrier over exposed dentin in 3 days. Learn more about the science behind this product and how it beats sensitivity pain fast. Sensodyne Rapid Relief is clinically proven to relieve sensitivity pain in just 60 seconds. Its unique formula quickly creates a barrier over the sensitive areas of your teeth. Sensodyne Rapid Relief toothpaste helps beat sensitivity fast—it provides daily protection from tooth sensitivity. Learn more about sensitive teeth and how our formulation works. Sensodyne Rapid Relief offers long-lasting relief, supports overall dental health, and is designed as a daily oral care product. Its fluoride content strengthens teeth and aids in cavity prevention, ensuring a healthy, strong smile.