Maybe you don't get the same giddy rush from buying a new tube of toothpaste as you do, say, the latest age-defying serum, but here's why you should. The new generation of toothpaste aims to make your teeth brighter and healthier, which, in turn, takes years off your smile for a more youthful look overall.

These toothpastes whiten, erase even serious stains -- I'm talking red wine, coffee and tobacco -- strengthen your teeth from the inside out and, of course, add an extra minty tingle to your breath. It's enough to make you, well, giddy.