(CNN) --Hydrogen peroxide, the active ingredient in over-the-counter whitening strips, may be harmful to the layer under the enamel of teeth, according to research presented Tuesday at a scientific ...

Over-the-counter teeth-whitening strips could damage a key protein deep within the tooth because of the way it interacts with hydrogen peroxide, the main active ingredient, new research suggests. It ...

Pearly whites can come with a price. Teeth whitening is expected to become a $7.4 billion industry by 2024, with Americans spending $1.4 billion alone on over-the-counter whiteners to bleach away the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Hydrogen peroxide, the active ingredient in ...

Hydrogen peroxide, the active ingredient in over-the-counter whitening strips, may be harmful to the layer under the enamel of teeth, according to research presented Tuesday at a scientific meeting.