REMBRANDT^® toothpaste won't change the color of bonded teeth, laminates, and porcelain caps. Even so, the low abrasivity of REMBRANDT^® toothpaste is recommended for people with laminates, porcelain caps or other restorations because it will minimize the risk of deteriorating the surface of the restoration.

Some people see immediate whitening. If teeth have a noticeable amount of stains, then it may take longer to see a change in color. It can sometimes be difficult to see the whitening effect when all of the teeth are slowly changing at the same time. If you already have very white teeth or have had professional whitening, these pastes are excellent at maintaining the level of whiteness.

The peroxide in the REMBRANDT^® DEEPLY WHITE^® + Peroxide Toothpaste gently reacts chemically to remove discoloration from teeth. It not only removes discoloration on the surface of teeth, but it also penetrates into tooth enamel to actually whiten the underlying tooth structure itself. Peroxide does not abrade of wear away tooth enamel. It only reacts with discoloration in or on tooth enamel.

Peroxide spontaneously produces small amounts of oxygen. Therefore, the toothpaste tubes containing active peroxide need to be over-sized to allow for expansion caused by the release of oxygen.

Over time, peroxides spontaneously produce small amounts of oxygen. The tubes for toothpaste that contain peroxide sometimes look puffy because of the pressure from the oxygen that has been produced. The oxygen occurs naturally, and it is simply the result of the active peroxide in the toothpaste.