Tanda’s Pearl at-home teeth-whitening system is both quick (five
minutes, twice a day, for
five days) and gentle enough for even the most
sensitive gums. It’s activated by ions, not bright light, which
means the hydrogen peroxide gel doesn’t need to
be superstrong.
Just stick it in your mouth and go about your business. I’ve even
sneaked in
a few rounds at the office—I’m wily that way.
($195,
tanda.com)