Many Amazon shoppers swear by this $19 teeth whitening tool

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Not all teeth whitening treatments are equal. Some might be too harsh for sensitive teeth and others might not brighten enough. But luckily, the AsaVea Teeth Whitening Pen is good for both.

With over 2,700 positive reviews, the AsaVea Teeth Whitening Pen is a tool many Amazon shoppers say gave them a brighter smile without affecting their sensitive teeth.

According to the product description, the AsaVea pen can remove long lasting stains including stains from coffee, tea, smoking and wine. In fact, if you use the pen consecutively AND consistently, your teeth could become four to eight shades lighter.

Shop: AsaVea Teeth Whitening Pen, $19.99

And what's cool is that you don't have to worry about long application times — it takes just one minute to apply. In order to get the best results, use twice a day and wait 30 minutes before eating or drinking. 

Two pens are included in this set and they're good for more than 20 uses. To use, simply twist the cap and brush the gel onto your teeth. After 30 seconds, you can relax your lips, and toss the pen right back into your medicine cabinet or travel bag if you're on the go.

One reviewer compared the results of the Asa Vea pen to Crest and Equate whitening strips.

"Due to prior experiences with Crest and equate whitening strips I always deal with tooth sensitivity even after the first use so naturally I only use this pen every other day thinking I was going to deal with the same issue and surprisingly I dont. I actually really like the way it whitens my teeth and love the fact that I'm not dealing with any tooth sensitivity pains."

Another reviewer said the pens were great for their sensitive teeth.

"I have really sensitive teeth and this pen is wonderful. My teeth are not hyper sensitive after using this and the results come fast. There is no way I am going back to those strips and trays.I can tell that I will never use another teeth whitening product again"

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