Toothpastes

Whitening toothpastes are another common form of teeth whitening products. They contain several types of chemicals, but usually do not contain hydrogen peroxide, the common bleaching agent in most teeth whiteners. Instead, teeth whitening toothpastes contain abrasive materials which are used to scrape discoloring particles off of the teeth. While this is effective for removing discoloring particles, it is not effective for whitening. A bleaching agent is needed.

Mouthwashes

Teeth whitening mouthwashes are a modern invention and are popularly sold in most drug stores. The effectiveness of teeth whitening mouthwashes, however, is questionable. Teeth whitening mouthwashes contain hydrogen peroxide, a bleaching agent commonly used to whiten teeth. However, to whiten teeth, hydrogen peroxide needs to sit on the teeth for a long period of time. So, at best, teeth whitening mouthwashes are good maintenance tools.