The ADA describes "whitening" as any process that will make teeth appear white.A product can bleach the tooth, therefore changing the natural tooth colour. A bleach contains peroxide that helps remove deep and surface stains.Whitening strips are typically coated with a thin layer of hydrogen peroxide or another bleaching agent. The majority of people who get teeth whitening their self-confidence and to gain the self-esteem that comes from having a great smile. There's no doubt that tooth colour is a key factor in the way you relate to people.Hydrogen peroxide is the best teeth whitening ingredient.