Our Teeth whitening oral spray contains peppermint extract and xylitol. It can remove tooth stains and whiten teeth. Its use is simple: 1. Shake the bottle before use, 2. Spray evenly on the teeth 1-3 times, 3. Let the spray sit on the surface of your teeth for about 1 minute, and then rinse your mouth. 4. Be careful not to swallow. And can effectively help remove stubborn tooth stains caused by coffee, tobacco, tea, red wine and food over the years.