Our Testers' Pick for the 'Best Overall' LED Teeth Whitening Kit Is 68% Off on Amazon Right Now (2024)

Out of all the LED whitening kits we tested, the Crest Whitening Emulsion with LED Light impressed us the most. The Crest whitening kit might have a drugstore name, but the kit completely blew us away with how well it worked at whitening our teeth and how easy it was to use. Throughout the testing period, we were most impressed by how the teeth whitening product has a barely there feel that doesn't ever feel goopy and gross on the teeth. We also love how lightweight the LED device is; it never felt too heavy or uncomfortable during use. Although these are definitely perks, what sets the whitening kit apart from others is how often you can use it. According to Crest, the formula and LED light are safe enough to use up to four times per day for faster results, which we did notice when testing the product.

Our sole hangup with this product is its more expensive price tag (at full price) compared to some other options on our list, especially considering its a drugstore brand. However, we believe that the whitening kit is well worth the results — plus you can regularly find it on sale.

What’s Included: 1 whitening treatment, 1 wand applicator, 1 Crest LED Accelerator Light, storage stand | Recommended Use: Apply treatment one to four times per day for 14 days | Active Ingredients: Hydrogen peroxide

If you want to whiten your teeth without the investment, you can find an excellent option in the Cali White Teeth Whitening Kit, which is available on Amazon. This budget-friendly LED whitening kit has everything you need to lighten up your smile, including one LED light, two gel syringes, two mouthpiece trays, and one comfort tray. Formulated with carbamide peroxide, which targets stains without causing sensitivity, the formula is gentle yet effective — and it only takes seven days to really see results.

Testing out this kit was practically seamless thanks to its ease of use, which makes it a great pick for beginners, too. We were also impressed by the quality for a $30 formula and how effective it was at whitening our teeth. Although it’s not the most potent formula on our list, we saw our teeth lighten by two shades after regular use. Additionally, the gel formula doesn’t feel too thick on the teeth and has a minty taste which makes the whole experience a lot more pleasant.

What’s Included: 1 LED light with timer, 2 whitening gel syringes, 2 mouthpiece trays, 1 comfort fit tray, 1 case | Recommended Use: Apply treatment for seven days | Active Ingredients: Carbamide peroxide

If you’re new to teeth whitening kits with LED light devices, we think the MySmile Teeth Whitening Kit with LED Light is an excellent option for beginners. Overall, we love how easy this kit is to use and were highly impressed by the results. Per the packaging, the brand recommends applying the treatment for 10 minutes per day over the course of seven days, but we actually saw results much sooner than that, around the four-day mark. Although our gums have experienced sensitivity with other whitening kit formulas, this one never felt uncomfortable on the teeth and gums.

If we could change one thing about this LED whitening kit, it would be the applicator on the syringes. We wish the whitening formula featured an applicator brush, making it much easier. Nonetheless, the kit is still really easy to use, especially for beginners, especially since you only have to use for 10 minutes each day.

What’s Included: 3 treatment syringes, 1 LED light device | Recommended Use: Apply treatment for 10 minutes per day for seven days | Active Ingredients: Carbamide peroxide

Some teeth whitening kits can lighten teeth by one or two shades with regular use. However, if you’re looking for brighter teeth over a shorter period of time, we suggest giving the Linhart The Whitening Collection a try, which gave us impressive results after just one week. The whitening process involves applying the treatment and LED light to teeth for between two and four 16-minute treatments. Albeit a bit of a time commitment on the daily, the multiple rounds of whitening helped to brighten teeth much faster than other options. With regular use, we saw our teeth go from a shade 24 to a shade 8 after just one week, which makes the $95 well worth the investment. In addition to the treatment, we love that this kit comes with a whitening gel toothpaste that you use in addition to your regular toothpaste to support the kit’s brightening efforts.

What’s Included: 4 treatment syringes, 1 LED light device | Recommended Use: Add one drop of whitening gel to teeth for two to four 16-minute segments | Active Ingredients: Carbamide peroxide

If you have stains or discolorations on your teeth, you know how annoying it can be to manage. Our solution is the PurelyWHITE DELUXE Teeth Whitening Kit, which immediately improved the look of stains after just one use when we tested the formula out. While the LED light device is a little tricky to switch on at first when you get it on, it works really well at brightening the teeth, and depending on the color of your own pearly whites, can lighten teeth by up to nine shades.

In addition to relieving the teeth from stains, we also loved the whitening process as a whole, especially in terms of how long it takes, which is around 12 minutes. And, since it worked so well as showing results, we love that you could use this to upkeep whitened teeth in addition to using it as a treatment to diminish yellowing.

What’s Included: 3 treatment syringes, 1 mouth tray, 1 LED light device | Recommended Use: Apply treatment to teeth for 15 days | Active Ingredients: Peroxide

Those who experience discomfort when whitening their teeth will experience relief with the Colgate ComfortFit LED Teeth Whitening Kit, our top pick for the most comfortable LED whitening kit. During testing, we were immediately impressed by how comfortable the device fit in the mouth — so comfortable that we hardly even noticed it. Additionally, the treatment pen features hydrogen peroxide, which is gentler on teeth compared to other teeth whitening ingredients which also contributes to the comfort aspect.

In addition to its comfortable fit, we found that the device was really easy to use and highly accessible, since it’s powered by your smartphone. While we wish we had more formula to continue the treatment beyond a few days, we did see a noticeable change in the color of our teeth after just a couple of uses.

What’s Included: 1 teeth whitening pen, 1 LED light device | Recommended Use: Apply treatment to teeth for three days | Active Ingredients: Hydrogen peroxide

With the Crest 3DWhitestrips 1 Hour Express + LED Light, you can have your white strips and your LED light. When testing this kit, we found that it was highly effective at brightening the teeth, and after the testing period, we saw our teeth brighten by six shades. While the price is a little high, we think it’s worth the money since it not only comes with 19 treatments (more than others on our list) but also actually brightens teeth effectively over time.

The only thing we would change about this product is the treatment commitment. Despite it being marketed as an “express” formula, the treatment’s recommended usage is 1 hour of white strips followed by five minutes of LED light (on top of the white strips). By the end of it, we spent 19 hours whitening our teeth (though we would do it again considering the results).

What’s Included: 19 sets of whitening strips, 1 LED light device | Recommended Use: Apply whitening strips for 1 hour, then place the light device on teeth for five minutes | Active Ingredients: Hydrogen peroxide

If whitening pens are more your speed, we found that the Periosciences LED Whitening Kit was highly effective throughout the testing period and gave us our desired results: noticeably whiter teeth. First, we loved how easy it was to apply the gel to the teeth using the pen. We also found that, since the formula (when combined with the light, of course) lightened our teeth by about half a shade every time we used it, we could use it to whiten teeth initially, of course, but also use it as a periodical treatment to target fresh stains caused by coffee and tea.

In our opinion, the only thing missing from this experience is a mint-flavored gel. Since the gel was unflavored, it was a little unpleasant on the teeth (though we believe the results still make it worth it).

What’s Included: 1 LED light device, 3 whitening pens, 1 whitening shade guide | Recommended Use: Apply treatment for 15 minutes per day for 10 to 15 days | Active Ingredients: Carbamide peroxide

Some members of our PEOPLE Tested team experience regular sensitivity with whitening formulas; however, after testing the Byte BrightByte Pro, we found that we never experience discomfort with this whitening kit. The treatment formula also features carbamide peroxide as its active ingredient, which is known for being more gentle on the teeth and gums compared to other whitening methods. In addition to sensitivity, we love how versatile this whitening kit is: The LED light comes with four different modes, including purple light for combination whitening, blue light for basic whitening, light treatment for massaging the gums, and a red light feature for recovery — making it a more inclusive oral health kit.

What’s Included: 4 treatment syringes, 1 LED light device, 1 charging base, 1 storage bag | Recommended Use: Apply treatment for 16 minutes for three days | Active Ingredients: Carbamide peroxide

Frequently Asked Questions

• Which teeth whitening kit is most effective?

  Our top pick for the best whitening kit is the Crest Whitening Emulsion with LED Light, which can be used up to four times daily for fast results. We were also impressed by the Crest 3DWhitestrips 1 Hour Express + LED Light, which comes with 19 strip sets and made our teeth six shades lighter than when we first started using them.

• What do dentists recommend for teeth whitening at home?

  Regarding dentist-recommended teeth whitening, Dr. Kosdon says either an LED whitening kit or whitening strips will work. “The strips require a little less work as they are ready to use out of the box, while the LED light activates the bleach in the gel, which works just like the light we have in the office.”

  If you want a combination of LED and strips, we recommend trying the Crest 3DWhitestrips 1 Hour Express + LED Light, which features Crest whitening strips and an LED light and lightened our teeth by six shades while testing.

• What is the difference between an LED teeth whitening kit and one without?

  Typically, both LED kits and kits without LED use the same whitening agents (hydrogen peroxide or carbamide peroxide), so the biggest difference between an LED teeth whitening kit and one without is the use of the LED light. “It is believed that some light sources, including LED, decompose peroxide faster by increasing the temperature to form free radicals that can penetrate the tooth enamel,” says Ang. “This means that, in theory, using a kit with an LED light can whiten teeth faster and more effectively.”