The Best Teeth Whitening Treatment

There is no big secret to what makes the best teeth whitening treatment. According to the American Dental Association and the dentists we interviewed, hydrogen and carbamide peroxide are the only things that work. We rounded up the teeth whitening products that cap their peroxide at ADA-recommended levels — then had 32 testers weigh in on their results. Finally, we compared the method of delivery: trays, strips, or a paint-it-on gel to find four whiteners that outperformed the rest.

The 4 best teeth whiteners

Best Whitening Strips
Crest 3D White Luxe Glamorous White Whitestrips
Crest
This tried and true method is highly recommended and gets results.
Pros
ADA-approved
Great results
Easy to apply
Strips are highly recommended
Cons
Not the most comfortable
Time intensive

Why we chose it

ADA Seal of Acceptance

Glamorous Whitestrips have a 10 percent hydrogen peroxide content, which our experts recommend. But the product also has an ADA Seal of Acceptance that verifies it’s safe to use and measures up to its marketing claims. While we know from past experience that gaining a seal doesn’t mean a product is the only one that meets ADA standards — companies have to apply and the ADA isn’t always transparent about the application process — the seal is a valuable sign of quality that removes doubt in a world of sketchy whitening claims.

Great results

As for actual whitening, the Glamorous Whitestrips didn’t disappoint. Our testers noticed an average improvement of 1.5 shades in 20 days — and our testers’ teeth were already pretty white to begin with.

But since everyone’s teeth are different, we wanted to double check and see what others were saying about Glamorous White. An avid fan base, plus a 4-star rating across 2,900 Amazon reviews, and praise from multiple dentists we spoke to helped prove that results greater than 1.5 shades with Glamorous Whitestrips are common.

Easy to apply design

Crest Glamorous White replaces our previous strips pick, Crest Professional Effects with better overall design. The Glamorous strip for the bottom teeth has a contoured shape that makes it easier to apply and more comfortable for the required 30 minutes — Professional Effects uses a rectangular bar that doesn’t fit as easily. Teeth whitening strips are technique sensitive, and our tester appreciated the curved design which molded more naturally to their teeth.

Strips are the most effective

While strips in general can be a little uncomfortable, and you have to take care when applying them to avoid your gums, many dentists recommend this application method as the extended contact with teeth can yield better results. Dr. Katia Friedman explained that, “Pens and gels are the least effective because the peroxide makes minimal contact with your teeth. Strips get the job done by sticking right to your teeth and directly applying peroxide” over time.

Points to consider

Not the most comfortable

Glamorous White makes some lofty claims. The Crest website boasts their strips are so unobtrusive, that you can drink water while wearing them. We tried it ourselves, but one sip turned our glass of water into a whitening gel cocktail. No thanks. Like all strips, there will be some discomfort when using them — having strips stuck to your teeth for 30 minutes is impossible to ignore. But out of all the strips we tested, the Glamorous Whitestrips were some of the most comfortable and least goopy.

Time intensive

To get the best results, you’ll need to wear Glamorous Whitestrips for 30 minutes at a time, which is time consuming. To be fair, results with Glamorous white will last up to 6 months, which means you might get away with this whitening regimen just twice per year, but for those who are on tighter schedules, the speedier Go Smile Snap Packs are a better bet.

Best Gel Whitening Treatment
Go Smile Super White Snap Packs
GoSmile
Speedy results from a paint-on application that’s less messy than strips or trays.
Pros
Easy to use
Safe for your teeth
Impressive results
Cons
Without a tray or strip, the product is easily diluted
Not the most portable

Why we chose it

Easy to use

Ease of use really set Go Smile apart from the rest. The gel was quick to apply and totally wearable — simply pull out a vial, snap it with your fingers to release the solution, and paint it on your teeth. We liked the paint-on approach, because it meant we were more in control of how little whitener got on our gums than with one-size-fits-all strips, which can be difficult to manipulate into place.

Plus, at only around five minutes per treatment, it fit seamlessly into our daily routine, which was a major bonus compared to messy and time-consuming trays that invariably lead to drooling. One tester remarked, “It was super easy to apply after brushing my teeth. It was an easy habit to form.”

Safe peroxide levels

Although Go Smile won’t disclose the exact percentage of peroxide it uses, the company confirmed that it’s less than the ADA-approved 10 percent. Our testers also reported no burning gum sensations and liked that sensitivity was minimal. In short, Go Smile makes it easy to do just that — but with brighter teeth.

Impressive results

The Go Smile Super White Snap Packs, which comes with 14 treatments for twice daily application, promises full results in only a week and whitened our testers’ teeth an average of three shades in that time. Pretty speedy, considering the average time until full results for the products we tested was 13 days.

Points to consider

Low contact time

The snap packs aren’t flawless though. Colorado-based dentist Dr. Nancy Gill DDS told us that the paint-on approach — like the one used by the snap packs — leaves the whitening solution open to moisture which “dilutes it and makes it not as effective.” In other words, closing your mouth will wash some of the whitener away. That said, Go Smile still produced some of the most impressive results during our testing.

Not the most portable

Since releasing the gel requires you to “snap” the vials with a little pressure, they’re also not the best for on-the-go — you’ll be at high risk of accidentally whitening the inside of your bag. For whitening while traveling, the more flexible Crest 3D Whitestrips or a whitening pen with a cap is the way to go.

Best for Sensitive Teeth
Crest 3D White Whitestrips Gentle Routine
Crest
Lower peroxide levels and a shorter wear time keep teeth and gums comfy.
Pros
Great for sensitive teeth
5-minute treatment
Strips are highly recommended
Cons
Slow results
Not as easy to apply

Why we chose it

Designed for sensitive teeth

Teeth sensitivity is highly subjective from one person to the next. But if your pearly whites are prone to pain — do you avoid ice cold water? — we suggest Crest 3D White Whitestrips Gentle Routine. The strips have a lower and gentler concentration of hydrogen peroxide (only 3–7 percent) and require just five minutes of wear per day as opposed to 30. None of our testers experienced any sensitivity throughout their four-week testing period, but all reported some level of whitening and an appreciation for the lesser time commitment.

Lower time commitment

The five minute wear time earned high marks from our testers. One tester explained, “I put them on every night before I started my bedtime routine,” one explained. “By the time I was finished washing my face and applying moisturizer, I could remove the strips and go to bed. Easy!” Consistency in use is essential for any teeth whitening method, and we liked that the Crest Gentle Routine strips were easy to fit into our routines.

Strips are the most effective

As the name suggests, Crest Gentle Routine Whitestrips are strips that you apply to your teeth. The dentists we consulted agreed that strips were most likely to provide the best results — strips keep whitening gel in contact with your teeth. Other methods such as rub on gels or pens can leave whitening solutions open to moisture and dilution which can diminish your overall results.

Points to consider

Slower results

While Crest Gentle Routine strips are great for sensitive teeth, the lower peroxide level means it also takes longer to see full results — 28 days compared to Glamorous White’s 20 — which is something to keep in mind if you’re whitening for an upcoming event. Additionally, the experts we consulted, our testers, and findings from beauty sites such as TotalBeauty.com and Men’s Health agreed that the higher the peroxide content, the better the final results.

Rectangular strips aren’t as practical

We weren’t impressed by Crest Gentle Routine’s rectangular strips for bottom teeth. These don’t mold as naturally to your teeth, so you’ll have to take a little extra care when applying them to avoid your gums and get full coverage of your teeth. They’re still fairly easy to apply, but we missed the curved design that other strips like Crest Glamorous White Whitestrips offer.

Best for Touch-Ups
AuraGlow Teeth Whitening Pen
AuraGlow
Not the best for deep whitening, but start to finish, touch ups with this pen take 30 seconds.
Pros
Quick application
Good for touch-ups
Highly portable
Cons
Weakest whitening method
Goopy gel

Why we chose it

Quick application

Whitening pens bring out the skeptic in us all. As one tester put it, “I expected to hate this thing. It seemed cheap and like it wasn't going to work, but it was truly convenient.” Start to finish, whitening takes about 30 seconds: twist the end to release the gel and paint it on your teeth twice daily for seven days.

Acceptable results

In terms of whitening results, our tester noticed only slightly brighter teeth (close to one shade) after a week of testing. Not nothing, but not standout results either. This product really should be a supplement to your teeth whitening routine. But for those who simply need a quick touch-up rather than deeper whitening, the AuraGlow is a solid choice. With a 4.3-star rating from over 600 reviews on Amazon, it’s safe to say that others agree.

Most portable

Theoretically, the AuraGlow pen is so discreet you could whiten anywhere — in the office bathroom on a quick break or right before a date. Our testers were big fans of pens and their added convenience: “You can paint it on and then go about your day; no need to brush your teeth again or take off strips. There’s nothing to even throw in the trash!” The pen is even transparent and shows you how much gel is left, which means you won’t have to worry about a suddenly empty pen when you’re on the go.

Points to consider

Weakest method

As we mentioned earlier, higher peroxide contents and greater contact time with your teeth improve whitening results. Unsurprisingly, the low contact time of pens like the AuraGlow meant they were the weren’t the most powerful whiteners (they provided the least impressive results). In other words, the AuraGlow isn’t the best bet for deeper whitening, but is a handy supplement for our other picks.

Goopy gel

As easy as the AuraGlow pen is to use, we wish the gel inside the AuraGlow was a bit less goopy — not a great texture to have on your teeth. According to testers the taste isn’t that great either. But the gel dissolves naturally over the course of 2-5 minutes, and being a little more moderate when applying the gel also improves the issue.

Guide to Teeth Whitening Treatment

How to find the right teeth whitener for you

Consider your dental habits

Consistency is key when it comes to teeth whiteners, so you will want to choose a method that best fits your lifestyle. If the 30 minute wear time of the Crest Glamorous White Whitestrips is tough to fit into your schedule, choosing the faster Go Smile Snap Packs or the Gentle Routine Strips will be a better option. Going with the whitening product you will use consistently will always yield the best results.

Take your dental history into account

Not all teeth are capable of being whitened by over-the-counter products; this is especially true for patients with many fillings, crowns, or very dark stains. Color matters too. Patients with yellow teeth (a natural result of aging) generally respond better to teeth whitening products than those with gray teeth (most often caused by smoking and taking certain medications, such as tetracycline). As for veneers, these can’t be whitened and have to be replaced.

Age is also a factor. “Remember that young teeth whiten a lot better than older teeth,” says Dr. Amato. “Over-the-counter products might work as well as dentist products for 16–24 year olds because they haven’t drank as much coffee or red wine to stain their teeth, unlike adults.”

Don’t bother with whitening lights

Some professionally-applied and over-the-counter products include a hand-held LED light or laser that claims to accelerate the teeth whitening process. In most cases, this is bunk. According to the ADA, “Most studies have reported no additional long-term benefit with light-activated systems.” It won’t harm your teeth to use an LED light, but it’s probably a waste of time and money. Skip it.

Consult your dentist

But, before you spend a single dollar on a whitening product we recommend visiting your dentist to find out if you’re a good fit for over-the-counter teeth whitening. Dr. Lawlor explained that “sometimes you just need a really good cleaning and it’s just yellow plaque that can make your teeth seem discolored.”

Teething Whitening FAQs

How often should I whiten my teeth?

The general recommendation is to use over-the-counter whitening products up to two times a year. Using whitening products too often can lead to increased tooth sensitivity or white spots — this is natural and due to certain areas of your teeth that have a lack of calcium (also known as hypocalcification). Excessive whitening can make the white spots more prominent.

How do I keep my teeth whiter for longer?

The best way to preserve your whitening results is to avoid stain causing products such as coffee, red wine, dark colas, or smoke. If skipping your morning coffee is too difficult, just remember to avoid brushing your teeth or using whiteners right after — it can do more harm than good. Acidic food and drinks soften your teeth, and Dr. Sanda Moldovan DDS recommended, swishing with water “to lessen stains and prevent demineralization of teeth which causes sensitivity.”

Is there a way decrease sensitivity?

To cut down on sensitivity during the whitening process, you can try brushing with Sensodyne Pronamel toothpaste (recommended by a few dentists we spoke to). Dr. Lawlor also recommends “putting a little toothpaste in a mouthguard and wearing it for about an hour after whitening — it seals off sensitive canals that teeth whiteners open to remove stains.” However, if you’re in real pain, give your teeth a break! You can always come back to whitening later or consult a dentist to see what other options are available.

What about whitening toothpaste or mouthwash?

Put simply, whitening toothpastes and mouthwashes cannot remove deep stains as well as whitening treatments. Each of your teeth is made up of multiple layers. First, a layer of enamel offers defense for the crowns of your teeth, the part that exists above the gum line. But over time, the stuff you eat and drink — berries, red wine, coffee — forms another layer, the pellicle layer, on top of your enamel.

Over the years, the pellicle layer may begin to penetrate the porous enamel layer. In other words, stains from your morning coffee seep into the enamel and take up permanent residence. No amount of surface-level scrubbing or rinsing can get rid of these stains once they’ve penetrated the enamel layer. Enter: teeth whiteners with bleaching chemicals, or peroxides. These can penetrate the tooth enamel and initiate a chemical reaction that breaks up the staining compounds.

Do homeopathic methods work?

When it comes to homeopathic methods, our dentists were blunt: they don’t work. Even though “people believe methods like strawberries and banana peels will whiten their teeth, none of these will whiten their teeth” said Dr. Ben Lawlor. “Hydrogen or carbamide peroxide bubbles clean teeth.”

The best teeth whitening treatment: Summed up

Crest 3D White Luxe Glamorous White Whitestrips
Go Smile Super White Snap Packs
Crest 3D White Whitestrips Gentle Routine
AuraGlow Teeth Whitening Pen
Best Whitening Strips
Best Gel Whitening Treatment
Best for Sensitive Teeth
Best for Touch-Ups
Price
$35
$60
$30
$22
Number of treatments
14
28
28
1 (lasts ~2 weeks)
Method
Strips
Gel
Strips
Pen
Recommended use
Twice daily
Twice daily
Twice daily
Once/twice daily as needed
Application time
30 minutes
5 minutes
5 minutes
30 seconds