From my years of testing at-home teeth whiteners, I’ve found that by far the easiest method is a whitening pen. You simply brush on a gel that’s dispensed when you click a button. Leave it on your teeth for about a minute before rinsing the gel off. It’s easy and travel-friendly, so you could add it to your daily oral-care routine seamlessly. This one from Auraglow is dentist approved because it contains 35 percent carbamide peroxide (the gold-standard ingredient for at-home teeth whitening). What’s better is that it’s over 20 percent off, bringing its original price of $20 down to just $15.
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