The 8 Best Teeth Whitening Pens for Your Whitest, Brightest Smile Ever

Convenient and effective, Polar has everything you want in a teeth-whitening pen. The gel contains 12% hydrogen peroxide so you'll see results on tough stains, but it's still gentle enough for sensitive teeth. 

This bleach-free pen contains hydrogen peroxide and a calcium complex that breaks up coffee, tea, and wine stains without damaging teeth enamel. Bonus: The formula is vegan, cruelty-free, and free of synthetic flavors and scents. 

Along with whitening hydrogen peroxide, this pen is made with a cushion of soothing ingredients like aloe vera, CoQ10 (a nutrient that occurs naturally in the body), and vitamins. And that's what makes it such a great choice for sensitive teeth or gums. For the best results, use the pen twice a day for up to two weeks. 

It's cliché but true: when something seems too good to be true, it usually is. In the case of teeth whiteners, they're easy use, but many of them have a gross, chemical aftertaste. That's what makes Moon's pen so damn special. It has a vanilla mint flavor that doesn't taste fake or sickeningly sweet. 

Many at-home teeth whitening pens don't contain a high enough percentage of peroxide to deliver the same instant results you would get with an in-office treatment. Consider AuraGlow's pen one of the exceptions. It's formulated with 35% carbamide peroxide to break down tough, dark surface stains. Expect to get 20 or so treatments out of a single tube.   

Not your average toothbrush, this Colgate one has a built-in whitening pen. Now, you really have no excuses for taking proper care of your teeth. The best part? For just $13, you're getting two products in one.  

Stubborn coffee, tea, and white stains are no match for Smile Direct Club's whitening pen. In just one week, it removes old dark marks from teeth. Even better: This pack includes eight pens — that's enough for a year's worth of whitening treatments. 

While teeth whitening pens are quicker to use than strips, Gleem's gel dries in 60 seconds. That being said, if you're looking for a whitening pen to pack when you travel or keep stashed in your bag for newly-formed stains, consider this one your best bet.