Well, a lot of us have been there. The good news is that you can give your smile a little extra sparkle just by switching to a teeth-whitening toothpaste. But with the abundance of teeth whitening ...

Do teeth-whitening products work? Are whiter teeth actually healthier? Dr. Ada Cooper explains everything you need to know about teeth whitening. Follow Tech Insider: On Facebook More from Science ...

Sensodyne's Extra Whitening Toothpaste goes easy on gums and teeth, using fluoride to build enamel strength and stave off cavities. Because it's formulated with sorbitol, a naturally moisturizing ...