The usual go-tos for at-home teeth-brightening—such as bleaching trays and strips—have stepped up their game, promising faster and whiter results. But they’re still missing one thing: light. Developed by New York University professor and cosmetic dentist Dr. Jonathan Levine, GLO Brilliant Personal Teeth Whitening Device ($283, at Sephora) pairs a whitening peroxide gel with an led mouthpiece that emits heat and blue light. According to the Journal of the American Dental Association, the indigo rays help get teeth their whitest when combined with a bleaching formula (the system is used every day for three to five days, in four eight-minute sessions). “The light and heat in a closed-system mouthpiece help stimulate the active oxygen [molecules] to improve the whitening results,” explains Dr. Levine. High hydrogen peroxide levels—a cause of tooth sensitivity—aren’t necessary either. GLO’s brightening gel, which is applied before you put in the mouthpiece, weighs in at only six per cent, compared to others that may contain more than double that.
Shown: GLO Brilliant Personal Teeth Whitening Device