Best Clear Aligners UK
Reader-supported. We may earn a commission from links on this page. Advertising disclosure.
In this article
Braces aren’t the only way to get straighter teeth. Clear aligners are another alternative you can look into. These are plastic dental trays that work like braces—they apply pressure to straighten your teeth while worn.
However, aligners are cheaper and more convenient, and most brands offer remote progress monitoring or require fewer dental visits.
They’re also more comfortable and less visible than braces. Although their biggest advantage is that you can remove them anytime.
Several companies currently offer clear aligners in the UK. We’ll help you pick one that best suits your needs and budget.
To help you decide, we asked our in-house dental experts at NewMouth to evaluate clear aligner brands in the UK based on the following criteria:
- Overall user experience (30%)
- Treatment process (30%)
- Pricing and financing (20%)
- Customer service and aftersales support (15%)
- Brand reputation (5%)
6 Best Clear Aligners in the UK
Here is a quick comparison of the top aligners in the United Kingdom:
| Clear Aligner Brand | Treated Cases | Average Treatment Time | How To Start Treatment | Treatment Monitoring | Treatment Cost |
|---|---|---|---|---|---|
| NewSmile | Mild to moderate | 4 to 10 months | Impression kit | Remote | £1,849 to £1,949 |
| Impress | Mild to complex | 3 to 6 months | In-person visit | Remote and in-person | £1700 to £4000 |
| SmileWhite | Mild to moderate | 2 to 7 months | Online consultation and in-person | In-person | £1,695 |
| Straight Teeth Direct | Mild to complex | 5 to 9 months | Online consultation or impression kit | Remote | £1,790 |
| Invisalign | Mild to complex | 6 to 18 months | In-person visit | In-person | £3,500 to £5,500 |
| Dr. Smile | Mild to complex | 4 to 7 months | In-person visit | Remote | £1,390 to £2,090 |
Below is a closer look at each clear aligner—including their pros, cons, customer reviews, and why you should choose them over competitors.
NewSmile
Best At-Home Teeth Aligners
NewSmile Highlights
| Available Treatments | Fast Track and Night Aligners |
|---|---|
| Monthly Plans | £129.50/12 mos (£295 deposit)£137.83/12 mos (£295 deposit) |
| What’s Included | Impression kit (online), aligner trays, a set of retainers, teeth whitening foam, and the NewSmile app (for remote monitoring) |
Why We Recommend It
- Many users find NewSmile’s treatment process easy, convenient, and effective. It gave them visible results, which helped with their confidence.
- Its representatives are responsive, helpful, and knowledgeable. They can address any questions or concerns and provide guidance when needed.
- NewSmile is reasonably priced compared to in-office aligners. It has short payment terms and affordable monthly plans that don’t require deposits.
Why Consider Other Brands
- Few people experienced delays in their treatment after receiving ill-fitting aligners or having to wait for their treatment plan or orders to arrive.
- Its customer service can be inconsistent. They can be unresponsive if you request refunds or express dissatisfaction with the support they provide.
- Some users didn’t get the same results as their treatment plan, and others say their clear aligners failed to move their teeth as expected.
NewSmile UK lets you book a video call with an Impression Specialist who can help you take accurate dental impressions from home.
Impress
Best Tech-Forward Treatment
Impress Highlights
| Available Treatments | Mild, Moderate, and Complex Cases |
|---|---|
| Monthly Plans | From £51.34/month (up to 60 months) |
| What’s Included | Initial 3D scan, custom aligners, remote monitoring app, orthodontist supervision, retainers |
Why We Recommend It
- Impress uses patented Root Diagnostic Technology and AI-driven treatment planning to precisely visualize treatment outcomes before you start, giving you confidence in the expected results.
- Its remote monitoring system through the Impress app reduces the need for frequent in-person visits while maintaining oversight by specialist orthodontists available seven days a week.
- Impress clinics are designed for patient comfort with modern, spacious environments, and the company offers prices up to 25% lower than comparable in-office treatments with transparent, all-inclusive pricing.
Why Consider Other Brands
- Impress requires an initial in-person visit for 3D scanning, making it less convenient than fully at-home options for those in areas without nearby clinics.
- Some users report that the remote monitoring app occasionally has technical issues or delayed responses from the dental team.
- The treatment can be more expensive than purely at-home options, though it remains more affordable than traditional Invisalign.
Impress combines the benefits of in-office care with the convenience of remote monitoring. Their specialists can treat complex cases while minimizing the number of clinic visits required through their advanced technology platform.
Smile White
Best for Fast Teeth Straightening
Smile White Highlights
| Cost | £1,695 to £3,695 |
|---|---|
| Average Treatment Time | 2 to 7 months |
| Treatable Cases | Mild to severe teeth misalignments |
| Available Treatments | Single Arch or Dual Arch |
| Payment and Financing | Klarna and Laybuy |
| Monthly Plans | £35.30 to £155.00/18 mos |
| What’s Included | Dental visits, teeth whitening, aligner trays, retainers, remote monitoring, and the Perfect Smile Guarantee |
Why We Recommend It
- It provides high-quality care for a cheaper cost than Invisalign. Treatment costs include a free teeth whitening kit (£395), two retainers (£395), a guarantee that covers additional refinements, and three dental visits.
- Users often praise its fast delivery times, high-quality aligners, and reliable customer service that will support you throughout the treatment.
- Many reviewers find Smile White’s dental products “highly effective” for whitening and straightening teeth. It can treat mild to complex cases and produce visible improvements over time.
Why We Recommend It
- It provides high-quality care at a lower cost than Invisalign. Treatment costs include a free teeth whitening kit (£395), two retainers (£790), a guarantee covering additional refinements, and three dental visits.
- Users often praise its fast delivery times, high-quality aligners, and reliable customer service that will support you throughout the treatment.
- Many reviewers find Smile White’s dental products “highly effective” for whitening and straightening teeth. It can treat mild to complex cases and produce visible improvements over time.
Why Consider Other Brands
- Smile White can become more expensive than other at-home aligners if you have complex teeth misalignment that can be difficult to treat.
- Some customers found making payments, requesting refunds, and scheduling in-person appointments difficult. Others experienced cancellations.
- You may not get information on how long your treatment will last. Several users said their treatments lasted longer than expected.
Smile White UK requires you to see a dentist three times during the treatment. You can get a free consultation from over 500+ Smile White dentists in the UK.
Use code NMSMILE for 5% Off
Straight Teeth Direct
Best for Flexible Payments
Straight Teeth Direct Highlights
| Available Treatments | Basic Pack and Premium Pack |
|---|---|
| Monthly Plans | £92.52/24 mos (£30 deposit)£168.79/12 mos (£30 deposit)£179/8 mos (£499 deposit)£629/3 monthly installments |
| What’s Included | Aligner trays and the Straight Teeth Direct app (for remote dental monitoring) |
Why We Recommend It
- We like Straight Teeth Direct for its transparency. Its website clearly breaks down its treatment plans, costs, and financing.
- The company offers bundled treatments and upgrades covering aftercare retainers, teeth whitening, and extended guarantees.
- Most customers are pleased with its competitive pricing, personalised support, and effective treatments that give them a straighter smile.
Why Consider Other Brands
- The brand doesn’t offer free teeth whitening or retainers. You’ll need to pay if you want them included with your treatment.
- Despite having mostly positive reviews, some customers say it failed to straighten their teeth or give them the results they wanted.
- Treatments may last longer than expected. Some users who had to undergo refinements ended up paying additional costs.
Straight Teeth Direct offers an online impression kit (£69) and free online consultations to determine whether you’re suitable for treatment.
Read our full review of Straight Teeth Direct
Invisalign
Best In-Office Aligner Treatment
Why We Recommend It
- Many people prefer Invisalign aligners because they’re more convenient. Unlike traditional braces, they’re removable and easy to clean.
- Its clear aligners are discreet and comfortable when worn. They have little impact on your speech and daily activities, which makes them practical.
- Most people who have tried Invisalign say it effectively straightened their teeth. Invisalign also works on overbites and other dental issues.
Why Consider Other Brands
- Some users didn’t get the results they wanted from Invisalign. For the treatment to be effective, you may need a skilled dentist or orthodontist.
- According to some reviews, Invisalign has poor customer service and retainers that break easily and may cause cuts or discomfort.
- Additional costs may incur if you switch to a new provider, if your treatment lasts longer than planned or if you need to replace broken retainers.
Invisalign is the most trusted in-office clear aligners in the United Kingdom. Since its launch, the company has treated over 15.7 million people.
Read our full review of Invisalign UK
Set up an Invisalign Consultation
Dr. Smile
Best Value for Money
Dr. Smile Highlights
| Available Treatments | S, M, or L |
|---|---|
| Monthly Plans | S: £116/12 mos M: £149/12 mos L: £174/12 mos |
| What’s Included | In-person consultation, aligner trays, the Dr. Smile app (for remote monitoring), and a satisfaction guarantee |
Why We Recommend It
- Dr. Smile can effectively straighten teeth. Many people who used its aligners reported fast and visible improvements in their teeth alignment.
- Reviewers appreciate its convenient treatment process, helpful customer service, and user-friendly app for checking in with the dental team.
- Its clear aligners are made of a high-quality material called ClearQuartz®. They’re discreet, comfortable, easy to use, and low-maintenance.
Why Consider Other Brands
- Several users had trouble scheduling appointments or reaching customer service, which frustrated them and delayed their treatment.
- The quality of its products can be inconsistent. Some people received ill-fitting aligners or retainers that had to be replaced.
- Few customers were disappointed with their treatment results. Its aligners failed to straighten their teeth as expected.
Dr. Smile UK is a hybrid option that involves seeing a local dentist for an initial consultation. The rest of the treatment can be completed at home.
The brand (formerly PlusDent) is currently partnered with over 400+ dentists registered under the General Dental Council (GDC).
More Invisible Aligner Brands in the UK
Here are more companies that offer clear aligners to UK locals:
ClearCorrect
Cost: £1,200 to £4,500
ClearCorrect is a reliable, effective, and affordable alternative to Invisalign. It treats different types of misaligned teeth, including severe cases, and you’ll be asked to visit the clinic regularly. During these visits, your dentist or orthodontist can fit the aligners, replace them, and adjust your treatment.
Diamond Whites (DW Aligner)
Cost: £1,490 to £1,990
Diamond Whites (DW) offers at-home daytime aligners for straightening mild to moderately crooked teeth. You can pay for the treatment upfront or visit one of 60 dental clinics and pop-up locations to begin treatment.
Spark Clear Aligners
Cost: £1,899 to £8,000
Spark is an in-office aligner available through Spark Providers. The brand is partnered with several local orthodontists in the UK. To get started, you would have to visit one for an in-person scan. Once you receive your Spark Aligners, treatments can be monitored in person or virtually.
Choosing Between In-Office vs. At-Home Aligners in the UK
Here are five things to consider when deciding on the best clear aligner for your needs:
1. Level of Teeth Misalignment
You can choose from in-office and at-home clear aligners depending on your condition.
In-office clear aligners like Invisalign work on mild, moderate, and severe cases. At-home clear aligners such as NewSmile work on mild to moderate teeth misalignments.
You should talk to a registered dentist or orthodontist to determine which orthodontic treatment suits you. They can help you explore alternative options, such as clear braces or invisible braces.
2. Treatment Accessibility
Pick a clear aligner brand that makes it easy to begin treatment.
In-office treatment requires you to visit a provider in your area for an initial consultation and to see them regularly throughout the treatment.
Most at-home aligner companies offer teeth impression kits. Although some brands may give you the option to visit a specialist for an in-person scan.
3. Treatment Options
Consider which treatment options are available before deciding on a brand.
In-office clear aligner systems tend to offer structured treatment plans based on your age and condition. Your provider will help you decide which is best for you.
Most clear aligner companies offer daytime and nighttime aligners, or aligner treatments based on the severity of your condition. You get to choose your treatment.
4. Treatment Costs
At-home clear aligners are less expensive than in-office aligners. You want to compare the costs of different brands and find one that fits your budget.
You can use qualified dental insurance to reimburse some of the treatment costs. Be aware of any price differences if you pay in full or monthly installments. Other costs to consider are:
- Impression kit (if it isn’t included with your aligner kit)
- Retainers after completing treatment
- Lost or stolen clear aligners
- Touch-up aligners or refinement
If you’re not satisfied with the results of your clear aligner therapy, some brands may offer a lifetime smile guarantee to cover the cost of new aligners. Others may charge for refinements.
Most brands of invisible aligners offer financing. This allows you to pay for your treatment with affordable monthly installments.
5. Treatment Duration
Go for a brand that can give you results within an acceptable time frame.
Each brand has a different average treatment time. This will help you gauge how long you must undergo treatment before you see results.
Remember that the time it takes to get straight teeth will depend on your condition and if you follow the prescribed wear schedule for all your aligners.
Which Clear Aligner is Best For You?
- Choose Invisalign for the best in-office aligners in the UK. UK-registered dental professionals oversee treatments at clinics.
- Choose NewSmile for the best at-home invisible aligners in the UK. It produces aligners that have a similar quality and feel to Invisalign aligners.
- Choose Impress for tech-forward treatment with AI-driven planning. Their remote monitoring system reduces in-person visits while maintaining orthodontist oversight.
- Choose Smile White for fast treatment times. This hybrid treatment can straighten crooked teeth within 7 months.
- Choose Straight Teeth Direct if you want a payment plan that fits your budget. The company offers more payment options than most aligner companies in the UK.
- Choose Dr. Smile if you want to get the most out of your money. It can treat complex issues for a lower cost than other orthodontic treatments.
Why Trust NewMouth
To find the best invisible aligners in the UK, we:
- Spent 220+ hours researching teeth aligner brands in the UK
- Scanned 200+ customer reviews for each clear aligner brand
- Consulted 10+ health experts, including licensed orthodontists
- Talked to 3 industry experts like CEOs of the best aligner brands
- Reviewed over 20+ research papers on clear aligner treatment
- Asked 3 of our writers to test different teeth straighteners
- Had our in-house dentists fact-check our article for accuracy
- Updated our review every month with the latest information
How We Chose the Best Invisible Aligners in the UK
To help you choose the best teeth aligner for your needs, we spent 220+ hours researching the top brands in the UK based on the following criteria:
- Doctor-directed care — The involvement of dental professionals
- Safe and efficient onboarding — How the company qualifies patients
- Treatment process — Ease, safety, and effectiveness of the treatment
- Total treatment costs — The amount you need to pay for the treatment
- Value for money — What you get with the amount you’re paying
- Customer support — The level of support provided by a company
- User satisfaction — Customers’ overall experience with a brand
- Guarantees and refunds — Assurances offered by the company
Sources
- “Invisalign® before and after patient stories.” Invisalign EU.
- “Smile White Clear Aligners.” Smile White UK.
- “Become a Smile White Dental Partner.” Smile White UK.
- “How does the DrSmile refinement work?” Dr. Smile UK.
- “Nearby DR SMILE partner locations.” Dr. Smile UK.
- “Dr. Smile.” Straumman Group Digital Solutions.
- “What Is Invisalign – Information on the Alternative to Traditional Braces.” Invisalign.
- “Invisalign Cost of Braces and Payment Options.” Invisalign.
- “Invisalign FAQ – All You Want to Know about Invisalign Aligners.” Invisalign.
- “How it Works.” PlusDent.
- “PlusDent FAQ: Frequently Asked Questions about Transparent Aligners.” PlusDent.
- “Invisible Teeth Braces – At Home Teeth Straightening Made Simple.” Straight Teeth Direct.
- “Straight Teeth Direct FAQs – All Your Questions Answered.” Straight Teeth Direct.
- “Clearcorrect.” Straumman Group Digital Solutions.
- “Spark Invisible Aligners London.” Bayswater Dental Clinic.
- Ke, Y. et al. “A comparison of treatment effectiveness between clear aligner and fixed appliance therapies.” National Center for Biotechnology Information, 2019.
- Weir, T. “Clear Aligners in Orthodontic Treatment.” Wiley Online Library, 2017.
Licensed dental specialist focusing on personalized dental content writing and blogging.
Related Articles

Straight Teeth Direct Review (2026)
Straight Teeth Direct is an affordable way to straighten your teeth. Read our unbiased review to learn if treatment is r...

Invisalign UK Review
Wondering if Invisalign is right for you? Check out our review to see what this orthodontic treatment can do for your sm...

Dr. Smile Review (2026)
Learn everything you need to know about the PlusDent aligner system. This review includes information on how it works, r...
Diamond Whites Aligners Review (2026)
Key Takeaways Diamond Whites (DW) launched its aligners in 2020 Its clear aligners correct minor teeth alignment issues...