Wednesday, July 29, 2009
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.