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This 'very effective' Colgate teeth whitening pen works while you sleep — and it's down to $20

Coffee, red wine, orange juice — all delicious, yet all can also take the sparkle out of your smile. While professional whitening treatments can turn back the clock, they can also cost hundreds of dollars and require schlepping to an office. Whitening strips also work — they’re a fraction of the price and can be done at home, after all — but what if you don’t have the hour to spare? The Colgate Optic White Overnight Whitening Pen is designed to be used right before bed, and it works while you sleep to slough away years of stains. Score it on sale for $20 at Amazon.

This handy whitening pen can reverse over 15 years’ worth of coffee, citrus and wine stains in as little as one week — impressive.

$20 at Amazon

Why is it a good deal?

Having your teeth whitened professionally just once can cost a pretty penny, whereas you'll get 35 nightly treatments out of this $20 pen — the same price it was on Black Friday. And, since time is money, the fact that it'll do the job while you're asleep is the cherry on top!

Why do I need this?

The potent formula, made with 3% hydrogen peroxide, is vegan-, sugar- and gluten-free. It creates a film on your teeth while you count sheep, which you can then brush away in the morning. It’s so easy to apply, too — just dry your teeth, click the pen to deposit the product onto the brush and coat your chompers. No need to fiddle around with messy white strips or take time out of your busy schedule to apply.

the red colgate teeth whitening pen next to its box
Go ahead, you can say "Cheese!" (Amazon)

What reviewers say

The pen has nearly 26,000 perfect five-star ratings. Shoppers love how much easier (and less expensive) it is compared to traditional whitening strips.

One wrote: "I thought I’d try this to get rid of some discoloration on my teeth because I drink coffee and wine and wanted to make them a little brighter. I feel that it did work, and I am over 60. I’m very pleased with the product. No problems using it. I used it for a week and I noticed a brighter difference."

"If you want to lighten the shade of your teeth, this works," shared another five-star reviewer. "This is precisely what I wanted. In my 60s, I was not looking for bright white teeth. I think that would look silly and an obvious intervention for someone my age. But I was pleased to find that years of coffee stains were significantly reduced and my teeth noticeably whiter. It's easy to use and the pen provides enough for about a week and a half of nightly applications." The helpful reviewer also added, "It can sting slightly when it contacts your gums, but it's momentary and minor."

Even dentists notice a difference! “You can most certainly see the results working,” shared one shopper. “My dentist noted how much whiter my teeth were when I went in for a cleaning!”

Another chimed in: “My teeth are pretty sensitive due to my love of acidic foods (coffee and red wine, ha). I've had zero issues with teeth sensitivity using this product and was surprised at how fast it improves teeth color. I also love the design! Its small size makes it easy to use without making any mess and great for taking on trips. It's dries pretty fast so I've never had any issues using it before bedtime and doesn't have a bad taste!"

"I found this product easy to use and very effective," shared a final fan. "After the first use, I could see a difference, and after several uses my teeth were noticeably whiter. It even whitened my teeth where my gums had receded. ... The only small negative to this product is that it can be a bit difficult to tell when there is adequate gel on the brush, and to see whether a particular tooth has been perfectly covered. These are not deal-breakers for me, and I will be continuing to use this product."

And to complete your oral care collection, Amazon shoppers also love this affordable Bitvae Electric Toothbrush.

At 40,000 strokes per minute, this top-seller can remove far more plaque than manual brushing, and it comes with two years' worth of replacement brush heads!

Save $11 with coupon
$14 at Amazon

"I love this dang toothbrush,"revealed a happy reviewer. "In one single session, my teeth are at least three shades lighter and it completely removed the yellowing that I couldn't get rid of between my teeth, no matter how aggressively I would brush. With that much cleaning, I expected some sensitivity but I ate crushed ice about an hour after brushing and there was no sensitivity at all!"

If you have Amazon Prime, you’ll get free shipping, 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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