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This one took us a while to figure out, but here's the deal: you apply a hydrogen peroxide gel to your teeth, use the included cheek retractors (we're not kidding) to stretch out into a horrifying smile, and let the blue LEDs activate the gel's superpowers. To fill the one-hour treatment time with ...

5 years ago 0 Comments
May 20, 2010 at 5:56AM