There are two approaches: swishing it all-around your mouth, or mixing it with baking soda and location it on your teeth as being a paste before rinsing. Whitening doesn't have to contain chemicals. In its place, try out such things as brushing with baking soda or rinsing with hydrogen https://socialioapp.com/story2355638/the-smart-trick-of-home-remedy-for-teeth-whitening-in-3-days-that-no-one-is-discussing