To maintain your teeth whitening results, it is important that you follow up with maintenance treatments. Two products are necessary for maintenance. One product is the customizable trays, which are made just for you. The second is a bleaching pen (which is really just like a lip gloss) with a little brush at the end, which you can paint over your teeth on a weekly basis. A good analogy for keeping or maintaining results would be that it is like going to the car wash. If you’ve gone to the car wash, you can get some dust in your car immediately thereafter and can easily take a rag at home wipe the dust clean from the car. It is the same thing with your teeth after teeth whitening.