WHITENING TOOTHPASTE: Opalescence Whitening Toothpaste for Sensitivity Relief has potassium nitrate which has been proven effective at reducing sensitivity caused by cold, heat, acids, sweets or contact. Stain removal and whitening toothpaste with a unique silica blend.ORAL HEALTH: Contains sodium fluoride, which aids in the prevention of cavities, gum disease and strengthen enamel. This superior fluoride release & uptake help to keep teeth and gums healthy & strong and aids in the prevention of dental decay.EVERYDAY USE FOR SENSITIVE TEETH: Most whitening toothpastes are not recommended for long-term use due to their abrasiveness. However, our unique formula is gentle enough for everyday use while still strong enough to remove surface stains.FRESH FLAVOR: Enjoy fresh minty breath while you brush your teeth. Effectively removes surface stains and lightens discoloration caused by food, coffee, tobacco, aging and other sources. Kosher, and Free of Titanium Dioxide and Gluten Free.MADE IN THE USA: Opalescence has been a leader in teeth whitening for over 25 years. Contact your dentist for our whitening kits, featuring the first ADA-accepted, syringe-delivered, take-home bleaching gel and prefilled trays. These teeth whitening kits safely whiten your teeth.