Brush on whitening gel can be purchased over-the-counter at most drug stores. It is simply a formula containing peroxide that you paint onto your teeth and leave on for a short period of time.

How Does Brush on Teeth Whitening Work?

Brush on gel contains peroxide which bleaches surface stains using the oxidation process caused by most methods of teeth whitening.

Is Brush on Teeth Whitening Effective?

You should expect a minimum amount of whitening from brush on gel. It can make a small difference, but other teeth whitening methods are much more effective. The big problem with brush on gel is that it needs to stay on your teeth for it to work. Unfortunately, saliva flow makes it almost impossible for it to work the way it is supposed to. This can causes blotches on your teeth.

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The Bottom Line on Brush on Gel

This stuff can whiten your teeth a bit, but the danger of blotchy teeth makes it hard to recommend. It doesn't taste very good either.