Sensodyne toothpastes with potassium nitrate soothe the nerves inside your teeth, preventing them from sending pain signals from triggers, like a burst of cold air or hot coffee.
Sensodyne Essential Care toothpastes (aside from Sensodyne Deep Clean) and Sensodyne True White toothpastes do not have SLS (sodium lauryl sulfate), an ingredient that makes toothpaste foamy when you brush, but can also irritate sensitive teeth and gums.
How Sensodyne True White toothpastes with potassium nitrate work
Sensodyne toothpastes with stannous fluoride work like a shield to protect the exposed soft, inner part of the tooth called dentin. This shield helps prevent triggers, like a cold soda, sweets, or sour candy, from reaching the nerves inside the tooth and causing pain.
How Sensodyne Rapid Relief toothpastes with stannous fluoride work