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Description
The #1 Dentist-Recommended Way to Keep Your Aligners Fresh, Clean, and Bacteria-Free in Just 5 Minutes.
Say goodbye to yellow, cloudy aligners, mysterious bad breath, plaque buildup, gum irritation, ineffective manual brushing, and the rising costs of professional cleanings.
The Problem
You wear your aligners more than 20 hours a day—but when was the last time you truly cleaned them? A quick rinse under the tap doesn’t do the job. It just spreads the bacteria around, making the problem worse over time.
The Smile Fresh™ Solution
The Smile Fresh™ Sonic Spa Go is an ultrasonic cleaner that uses high-frequency sound waves to eliminate 99.9% of bacteria from your aligners. This is the same trusted technology used by dentists and orthodontists around the world. There are no harsh chemicals, no weird aftertastes—just a deep, invisible clean that brings your aligners back to that day-one clarity and freshness.
What You’ll Notice
With regular use, you’ll feel the just-unboxed smoothness of your aligners, enjoy noticeably fresher breath, and experience far less plaque odor in the mornings. Gum sensitivity may decrease, and you’ll feel more confident—especially up close.
Quick, Hassle-Free Cleaning
Cleaning is effortless. Simply place your aligners inside, press one button, and in five minutes, you're done. It's quiet, portable, and perfect for use at home or while traveling. Smile Fresh™ is compatible with all major aligner brands including Invisalign™, SmileDirect™, Byte™, Snow™, Smile White™, and even retainers.
Why It Works
The sonic vibration loosens and lifts plaque and bacteria that brushing misses. The 360° cleaning basin ensures no angles are left untouched. Its chemical-free sterilisation process is gentle on all aligner materials, while the sleek, travel-ready design makes it easy to take with you anywhere. Trusted by over 10,000 dental clinics, it’s a tool backed by professionals.
What Users Are Saying
Many users say they didn’t realise how dirty their aligners were until they used this device. Some have noticed their bad breath disappear almost instantly. Others describe it as a daily spa treatment for their mouth.
Who It’s For
Smile Fresh™ is for anyone serious about maintaining oral hygiene with aligners. If you want that just-cleaned-by-the-dentist feeling without the cost or hassle—or you're tired of buildup, odors, and guessing whether your aligners are truly clean—this is for you.
Shipping Information
At SmileFresh™, we know a fresh, clean smile can’t wait — so we work hard to get your order to you as quickly as possible.
Delivery Timeframes:
🇬🇧 United Kingdom:
Standard Delivery: 2–3 working days
Next Day Delivery: Available at checkout (Order before 2pm)
🇪🇺 European Union:
Standard Delivery: 3–5 working days
🇺🇸 United States:
Standard Delivery: 2–3 working days
Order Processing:
All orders placed before 2pm (GMT) are processed the same working day.
Orders placed after 2pm or on weekends will be processed the next working day.
Shipping Costs:
Shipping costs will be calculated at checkout based on your location and selected delivery option.
Next Day Delivery is available in the UK only and may incur an additional charge.
Tracking:
Once your order is shipped, you’ll receive a tracking link via email so you can follow your delivery every step of the way.
Returns & Warranty
We’re confident you’ll love the SmileFresh™ Sonic Spa — but if you don’t, we’ve got you covered.
Try it. Test it. Use it daily.
If you’re not 100% satisfied within 30 days of receiving your order, simply return it for a full refund.
Returns & Refunds
30 days from the date of delivery to request a return.
hello@smilefresh.co.uk with your order number.
3–5 working days of receiving the returned item.
How To Use
Keeping your aligners fresh has never been easier.
Just 3 steps. 5 minutes. Dentist-level clean.
Fill
Add warm water to the Sonic Spa cleaner until it reaches the MAX line.
Drop
Place your aligners, retainers, or dental appliance into the stainless steel chamber.
(Add a cleaning tablet for extra freshness — optional.)
Activate
Close the lid and press the power button.
The ultrasonic waves will begin cleaning instantly, removing bacteria, plaque, and odour in just 5 minutes.
Pro Tips:
once daily for best results
Boostab™ Cleaning Tablets (sold separately)
That's it.
Fresh aligners. Healthier mouth.
SmileFresh clean — every single day.
In stock! Ships within 1 business days.
30-day risk-free trial
Trusted by UK Leading dentists

Sonic Spa - Ultrasonic Cleaner

The Sonic Spa does what nothing else can:
✔️ Kills 99.9% of bacteria with ultrasonic waves
✔️ Restores that crystal-clear look to stained trays
✔️ Eliminates odour-causing grime that leads to bad breath
✔️ Stops plaque buildup that causes gum irritation & sensitivity
✔️ Takes just 5 minutes — and one button

SmileFresh is the future of aligner hygiene.
We create professional-grade ultrasonic cleaning solutions for aligners, retainers, and mouthguards — trusted by dentists and loved by customers.Our flagship Sonic Spa™ removes 99.9% of bacteria, restores clarity, and eliminates bad breath-causing build-up in just 5 minutes a day.No harsh chemicals. No scrubbing.Just fresh, clean aligners — every single day.Smile smarter. Live fresher.Welcome to SmileFresh.

The Science Behind Smile Fresh

The Science
Ultrasonic Cleaning Technology
SmileFresh™ uses high-frequency ultrasonic vibrations (42,000 Hz) to create microscopic bubbles in water that collapse with force — a process called cavitation.
This powerful, non-abrasive action dislodges bacteria, food particles, and plaque from even the smallest crevices of your aligners or retainers. It’s the same science used in professional dental clinics.
Clinically Proven to Remove Bacteria
Studies show ultrasonic cleaning removes 99.9% of harmful bacteria, including those linked to bad breath, gum irritation, and staining.
Traditional brushing or soaking can't reach biofilm deep in the grooves of your dental appliance — SmileFresh can.
Gentle on Aligners. Tough on Build-Up.
Unlike brushing (which can scratch the surface of your trays), ultrasonic cleaning is completely non-abrasive.
SmileFresh is safe to use daily on Invisalign®, SmileDirectClub®, nightguards, retainers, and dentures — preserving clarity and lifespan without wear and tear.
Cleaner Mouth, Healthier Smile
A cleaner aligner means a cleaner mouth.
By removing harmful microbes before they re-enter your mouth, SmileFresh helps reduce the risk of bad breath, inflamed gums, and long-term oral health issues.
It’s not just about appearance — it’s about prevention.

Hello, We’re Smile Fresh!
Our ultrasonic aligner cleaner is here to do what others can’t — deep clean your aligners in 5 minutes, remove 99.9% of bacteria, and keep your smile crystal clear.
💜 Trusted by dentists
💜 Backed by science
💜 Loved by aligner users everywhere
We’re just getting started — and we’re building a community of people who take pride in their smile.

If You’re Wearing Aligners, You Need This.
Let’s be real — aligners spend over 20 hours a day inside your mouth.
Now imagine the bacteria, plaque, and food particles building up… invisibly.
Rinsing with water?
Brushing with a toothbrush?
That’s not cleaning. That’s just moving bacteria around.
FAQs
Please read our FAQs page to find out more.
Can I use SmileFresh with Invisalign® or other aligner brands?
Absolutely. SmileFresh is compatible with all major clear aligner brands including Invisalign®, SmileDirectClub®, Byte®, and others. It’s also safe for retainers, mouthguards, and dentures.
How often should I clean my aligners with SmileFresh?
We recommend using the Sonic Spa once daily for best results. This keeps your aligners crystal clear, odour-free, and free from bacteria.
Do I need to use cleaning tablets with it?
No — the Sonic Spa works effectively with just warm water. However, for extra freshness and whitening support, you can use our Boostab Cleaning Tablets (sold separately).
Is ultrasonic cleaning safe for my aligners?
Yes. Unlike manual brushing, ultrasonic cleaning is non-abrasive and won’t scratch or damage your aligners. It’s gentle, powerful, and dentist-approved for daily use.
How long does it take to clean?
Just 5 minutes per cycle. Drop your aligners in, press one button, and let SmileFresh do the work while you get on with your day.