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This No. 1 bestselling teeth whitening pen is down to $12 for a 3-pack

'Worked better than a visit to my dentist': Grab the ingenious tool more than 14,000 shoppers rave about for 40% off.

Love coffee? How about wine? If you find yourself having one or both regularly, chances are you've also noticed your teeth changing color over time. If you've tried all the whitening strips, trays and toothpastes on the market and haven't been able to get your choppers gleaming again, you might feel at a loss. But if you think you have to ditch your coffee habit or celebratory wine for a white smile, think again.

The VieBeauti Whitening Pen might be for you, especially now that it's only $12 (down from $20) when you apply the on-page coupon. That comes out to just $4 per pen!

The pen is mightier than the strip, especially if the latter contains chemicals that may hurt your gums. Don't forget to apply the on-page coupon for the full discount.

Save $8 with coupon
$12 at Amazon

We've never seen the price of these whitening pens — No. 1 bestsellers on Amazon — drop lower than $12 per pack. A single pen is equal to 14 regular teeth whitening strips, so you'll already be saving big bucks when it comes to whitening your teeth.

If your smile isn't as bright as it used to be, these at-home whitening pens may be a way to get around the hassle — and considerable expense — of professional whitening treatments.

The pen uses a brush tip applicator. Simply twist the bottom to release the gel into the brush, spread the whitening gel on your teeth, and let it sit for at least 20 to 30 seconds while smiling. After this, you may relax your lips, but avoid eating or drinking for the next 30 minutes. That's it!

The pens are safe even for those with dental sensitivity and can be easily used on the go too. Since this pack comes with three pens, you can keep one in the bathroom, one in your purse and one at work for any time, anywhere whitening.

tooth whitening pens
Say "buh-bye" to stained teeth and "hello" to pearly ivories. (Amazon)

More than 14,000 shoppers are grinning from ear to ear about this whitening pen, giving it a glowing five-star rating.

"This worked better than a visit to my dentist!" raved one shopper. "I like everything about this whitener. Easy to use, comes in threes so I can travel with one and results are better than I had hoped!!"

Another happy user reported: "No tingling, discomfort or negative side effects. Just gorgeous white teeth for a fraction of the cost from the dentist."

"I'm a big coffee drinker, and I noticed my teeth were getting a bit discolored," said a satisfied reviewer. "I know in the past my sister said she paid a lot of money to have her teeth whitened by a professional and she said it didn't make much of a difference... I looked at multiple products and decided on this one. I am so glad I did! I love this stuff so much that I bought more of it when I ran out."

Another java lover shared, "These 67-year-old teeth have just reason to be yellow from years of coffee. I was surprised how easy this was to use, and that I actually did see results ... without any sensitivity."

"I've used professional whitening gel purchased from my dentist before, and the sensitivity it caused was so bad, I had to stop," said a satisfied user. "I feel like I'm getting about the same results with this gel without that sensitivity, so I couldn't be happier."

Some reviewers aren't smiling about the taste. "I don't think I have consistently used it long enough to see big results, but the taste is not good to me," explained this reviewer. "Kind of a pain to 'let it dry' on your teeth. I usually end up using my hair dryer to speed it along."

A final shopper stated: "Yes, I see a bit of whitening, but will get strips next time. The gel doesn’t firm up or dry, so you end up swallowing the gel and it does not taste good."

If you have sensitive gums, reviewers say this is the whitening system they use the most. Don't forget to apply the on-page coupon for the full discount.

Save $8 with coupon
$12 at Amazon

If you still prefer to go the whitening strip route, Crest has your teeth covered (literally):

These whitening strips make your teeth up to six levels whiter in just 10 days using the same ingredients dentists use. They're safe on your enamel and shoppers say they will leave you smiling.

"Can't believe the difference in such a short time. I used them four consecutive days before getting composite bonding done and I went up two shades of white," shared this happy reviewer.

$62 at Amazon

If you have Amazon Prime, you’ll get free shipping on the teeth-whitening pens, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

The reviews quoted above reflect the most recent versions at the time of publication.

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