Teeth whitening is a very simple procedure if done right. Doing it right means using a proper whitening agent (good peroxide gel) and an appropriate accelerator. Peroxide gel is added to a mouth tray, then the tray is inserted into the mouth allowing the front teeth to contact directly with the peroxide gel. A blue cool light is placed directly in front. Improvement up to 2-7 shades whiter and brighter. Great for the holidays or a special event!