whitening strips can quickly and thoroughly dissolve tooth discolorations . Use one set a day to easily remove coffee, tea, tobacco, and other yellow stains. whitening strips contain 6% peroxide whitening ingredients, which can release oxygen power to actively whiten your teeth and give you express whitening results., while will not bring any harm to your teeth. They are easy to apply without slipping. You can use it when watching TV, reading a book, taking the subway, etc, without discomfort during the application. 『QUICK & EFFICIENT WHITENING:』 Just apply these whitening strips to your teeth, wait for 30 minutes and then reveal. Whiter teeth can be seen in just one use. Consistent use of the kit will keep your teeth shiny white for about 3-6 months.