We're having a heat wave.

You know it's a serious winter when we think 40 degrees is hot.

The real heat is coming from the GLO Brilliant Personal Teeth Whitening Device, created by Upper East Side dentist Dr. Jonathan B. Levine. The at-home system combines warmth with light for a new kind of at-home whitening. Perfect for sensitive teeth, the whole process takes only 32 minutes a day, and you'll see improvement in three to five days. Bonus: The sleek system is worn around the neck, allowing for hands-free whitening (see a pic of your editor wearing it here).

To extend our GLO, Dr. Levine gave us these simple, stain-preventing tips.

Wanna GLO? Enter to win our contest (details below)!

Feel the heat.

Know someone who wants their smile to GLO? Share this news!