It contains stannous fluoride and relieves sensitivity pain while also whitening teeth. It quickly forms a protective layer over your exposed dentin, which is the sensitive area of your teeth. This prevents outside triggers from reaching the nerves in your teeth, resulting in clinically significant sensitivity relief in 3 days and thereafter when brushing twice a day. It also gently removes stains for whiter teeth. Features: Relief from sensitive teeth in 3 days* Aids in tooth whitening* Aids in the prevention and removal of tooth stains Freshens the breath Direction: Apply a 1-inch strip of the product to a soft-bristled toothbrush. Brush your teeth thoroughly for at least 1 minute twice a day (morning and evening), and no more than 3 times a day, unless otherwise directed by a dentist or doctor. Brush all of your teeth's sensitive areas. Reduce the amount of time you spend swallowing. These product images shown may represent the range of products, or be for illustration purposes only and may not be an exact representation of the product.