22+ How Do Teeth Whitening Pens Work
Background. Though teeth whitening pens have almost no effectiveness in the process of whitening teeth, they can be somewhat helpful in the maintenance of whiteness of the teeth. The main ingredient of the tooth whitening pen contains sodium citrate, which is mainly used for whitening and brightening teeth.

That depends on the treatment—and your teeth. Whitening systems come in many forms—toothpastes, rinses, whitening strips, chewing gum, gels—and can cost anywhere from $5 to $2,500 depending on the chosen treatment. Some teeth whitening methods are most beneficial for preventing teeth yellowing or staining.

Besides that, pen whiteners contain carbomer (a whitening agent), sodium hydroxide (this is a white solution which catalyzes the process, letting every other ingredient to be fast delivered to the tooth), peppermint oil for better taste and.

The peroxide in the strips can cause severe gum discomfort. Brush your teeth to ensure that they're clean. Take extra care to brush spread your lips apart into a toothy smile with both your upper and lower teeth visible, as well as your gum lines. Well, how long is a piece of string?