Models, celebs, fashionistas and anybody who's anybody these days whitens their teeth so that they can be red carpet and paparazzi ready. The problem, however, is that not everybody's teeth can handle constant bleaching. New from GoSMILE is ZEN Toothpaste, $18, to help alleviate sensitivity in over-processed teeth.

There are of course other reasons for sensitivity such as: gum recession, tooth decay, aging, clenching or grinding of the jaw/teeth. Even overaggressive tooth brushing can cause ...