Your smile is how you express yourself. It’s the first thing people notice about you and plays a big role in your confidence. So it’s no wonder that teeth whitening is the most popular cosmetic dental procedure. On top of it being a quick and easy way to boost your smile, it’s affordable, safe, and widely available.
And now you have more whitening options than ever before. Whitening strips, trays, pens, LED-enhanced kits, in-office treatments — it can be a struggle to figure out which is best for you. In this guide, we’ll outline the pros and cons of the five most popular teeth whitening methods to help you decide which one is right for you.
Table of Contents
1) LED Whitening Kits
At-home LED-enhanced whitening kits are fairly new but quickly rose in popularity, dominating social feeds through advertising and influencers. While they certainly look cooler than your average strips or pens, there’s more to them than the aesthetic: lights with blue wavelengths boost whitening agents.
How do they do this? Essentially, blue light gets the gel deeper into the teeth faster, then helps the gel break up into smaller particles. Those particles attach to the stains inside your teeth, oxidizing them, breaking them apart, and lifting them out. LED lights aren’t as effective at boosting whitening as warmer options, such as halogen, but are significantly safer for at-home use.
The one downside of LED kits is their cost. You can find budget options, but many run over $100. But before you write them off, be sure to see how that cost breaks down per treatment. In many cases, that high sticker price breaks down to a lower cost per whitening session than strips and non-LED tray kits.
- Enhanced Results: Because the LED light improves the results of the whitening agent, the results tend to be more profound than standard treatments.
- Affordable: Even though they’re a little more expensive than other over-the-counter whitening kits, they’re still affordable than professional whitening treatments and often break down to a low cost per whitening session.
- Awkward Mouthpieces: While some companies do better than others here, in many — if not most — cases, they can be a little large and awkward.
2) Whitening Strips
Once upon a time, teeth whitening was a strictly in-office treatment. Then, whitening strips took over-the-counter options mainstream. It’s easy to see why; they are an all-in-one solution that requires minimal prep or thought. No measuring gel, no cleaning trays, no holding an LED light in place. You just clean and dry your teeth, stick the strips in place, and go.
There are some variations between whitening strips. Some need to be worn for just 30 minutes, others for 60. Some use hydrogen peroxide, others carbamide peroxide — and some skip the peroxide completely. And then there are strips that dissolve in your mouth, eliminating the disposal step of using them.
The primary downside of whitening strips is that they don’t always reach all the surfaces of the teeth. If you have alignment issues, you might find that the results are a bit uneven. If this isn’t a concern for you, then they might be the easiest and most affordable whitening option, with most boxes of whitening strips costing between $20–$50.
- Affordable: Whitening strips are more affordable than at-home LED kits and custom trays, and significantly more affordable than in-office options.
- Effective: Following a two-week course of whitening strips, you can expect results to last 4–6 months.
- Long History of Customer Satisfaction: Whitening strips have been available over the counter for over 20 years and transformed millions of smiles.
- Not Suitable for Crooked Teeth: The strips need to touch each surface of the tooth to lighten it, so if you have crooked teeth, strips may not be the best choice.
3) Whitening Pens
Unlike the other methods on this list, pens are not meant for significant teeth whitening. They can change your smile by a couple of shades but are generally intended for maintenance more than anything.
Despite this, whitening pens have a lot going for them. First, they are highly portable. You can pop them in your bag or pocket and use them to combat the effects of your daily coffee, red wine at dinner, or those berries you had as a snack. Second, they are easy and quick to use. You just dry your teeth, paint the gel on, and keep your lips off your teeth for 60 seconds.
Finally, they are usually one of the most affordable options, with an average price range of $8–$30. If you aren’t looking to make a big change or want to maintain your smile after a more powerful treatment, whitening pens are a great tool to have.
- Portable: Whitening pens can slip into a pocket or handbag, so it’s easy to whiten your teeth while sitting in traffic, at your desk, or between stops on the subway.
- Affordable: One of the most affordable methods, pens usually cost between $8 and $30.
- More Control: Because you paint on the gel, you can control how much you use and can keep the gel away from delicate gum tissue.
- Varied Results: While some people swear by the results they get with a whitening pen, others say they don’t see any difference at all.
- Short-Term Results: On average, the results from whitening pens only last a few weeks before you need to reapply.
- Multiple Applications Per Day: To see results, you might need to apply twice a day.
4) Whitening Trays
Whitening trays are one of the most effective ways to brighten your smile. They hold the gel in place better than strips, which can slip and slide, and as long as the trays fit well, don’t allow the gel to be washed away as it is with pens.
There are multiple types of whitening trays available, including universal-fit, custom-made, boil-and-bite, and pre-filled options. Of these, the custom-made options tend to deliver the best results since they conform to the shade of your teeth, ensuring an even application of the gel, and don’t come with the risks of tooth damage like boil-and-bite options.
The cost of whitening trays is all over the board, from $45 on the more affordable end to $100+ when you opt for customized options. However, just like with the LED kits, you should assess value based on how many applications you get per kit as the price per whitening session might be less than seemingly more affordable options.
- Custom Fit Options: Custom-made trays fit your teeth and gums perfectly. This helps reduce gum irritation and keeps the gel on your teeth.
- Affordable: Whitening trays are much less expensive than in-office treatments but often deliver a similar shade difference.
- Widely Available: You can find non-prescription-strength whitening trays in almost any store and online.
- Increased Risk of Gum Irritation: Especially when you first start out, you might add too much whitening gel, which can irritate your gums.
- One-Size-Fits-All Not Right For Everyone: OTC trays accommodate a wide range of mouths, and they may be too big for some people. Loose trays allow the gel to become diluted, which could delay your results and waste whitener.
5) Professional Whitening
Professional whitening — or in-office whitening — are treatments delivered by a dentist. These can be done “in the chair” or with a professional-grade whitening solution at home. And in some cases, it’s a combination of the two.
There are big benefits to professional treatments, including major shade changes, getting full results in a single session, and benefiting from things like sensitivity gel and gum isolation. Some treatments also use special lights or lasers for maximum effect.
Of course, all whitening methods have their downsides, and for professional treatments, the big one is cost. They’re around $400 on the more affordable end and can go over $2,000 for the most powerful systems, like KöR. Just keep in mind that results can last for years, so you get touch-ups less often than you would with at-home kits.
- Immediate Results: Since you only need one office visit for most treatments, you can have bright, white teeth in as little as one hour.
- Long-Lasting Results: In-office treatment lasts longer than at-home methods because your dentist can use more concentrated materials.
- No Irritated Gums: Your dentist applies a gum barrier, so you don’t need to worry about getting it on your gums.
- Deeper Whitening: Since your dentist uses prescription-strength whitener, it can remove deeper stains than over-the-counter products.
- Required Office Visits: Because of the high concentration of the whitening material and the special light needed, only your dentist can deliver these quick, effective results.
- Sensitivity: Since powerful ingredients are used (and possibly lights), teeth may be sensitive after these procedures.
- Expensive: In-office whitening costs $500–$1000 per session, and the average falls around $650.
If you are looking for professional results from the comfort of your own home, custom trays might be a great choice. They’re also great if you want to whiten your teeth on your own schedule and don’t mind if it takes a few weeks to see results.
Learn more in our in-depth guide to custom whitening trays.
With new brands and methods of teeth whitening popping up all the time, it can be tough to decide which is the safest, fastest, and most economical method. If an in-office whitening session is out of your budget, there are many at-home methods to consider.
Are you ready to learn more about the possibilities? Check out our teeth whitening guides below!
Frequently Asked Questions
Is teeth whitening safe?
Yes — for most people. It’s a good idea to discuss teeth whitening with your dentist before you start. If you have untreated cavities or gum disease, you could do more harm than good.
Will my teeth be sensitive?
Maybe. It depends on the strength of the whitening agent and how long it’s on your teeth.
Can I eat or drink after whitening?
Most brands recommend waiting at least 30 minutes before eating or drinking anything other than water since your teeth will absorb new stains more easily for a while after whitening.
How can I make my results last longer?
Limit food and drink that stains your teeth, like coffee, tea, wine, and berries. Flossing and brushing between meals will also help keep your teeth white between treatments.
When will I see results?
That depends entirely on the method of whitening you choose. An in-office visit will take about an hour, but an at-home method might take a few weeks if the whitening agent isn’t very strong.
Will insurance cover my teeth whitening?
Not usually. Insurance providers typically consider teeth whitening a cosmetic procedure, so it’s not covered. Some rare cases might be covered if the tooth discoloration is due to nerve damage.
What if I have deep stains, like those caused by tetracycline?
At-home kits won’t help, and few in-office treatments can make a real difference. However, KöR can. Look for a provider near you to have your teeth assessed.
Why are whitening pens not ideal as a primary whitening method?
Essentially, the gel gets washed off your teeth by your saliva as soon as you close your mouth. It doesn’t get the chance to really get into the enamel and lift out the stains. However, they work well to eliminate surface stains.
Can I whiten my teeth every day?
In general, no. However, there are certain products designed for daily use, such as strips and pens that do not contain peroxide. Be sure to carefully read the instructions before using any whitening product so you can keep your smile safe.
If I have aligners, can I whiten my teeth?
Yes, but be careful about the whitening products you use. Some are too powerful and can damage the aligners. Most companies offer their own whitening products that are suited to the plastic you use, so look into that option first.