Dry your teeth
Make sure your teeth are thoroughly dry with toilet paper or a towel before you apply the trays.
How it works
Freshen up your smile at home. Four easy steps, no fuss.
Apply the trays, leave them in for 60 to 90 minutes, then remove. Klaas shows you how it works in one minute.
4.8 out of 5on TrustpilotMr. Fris in 1 minute
The glow-up
Check out Mr. Fris TraysFour steps to a fresher smile.
No complicated devices or appointments. You apply the trays, leave them in, and then remove them. That's all there is to it.
Apply the trays
First apply the bottom part, then the top. Gently click them into place.
Wait 60 to 90 minutes
Keep the trays in for 60 to 90 minutes. Meanwhile, you can just go about your day.
Remove them and enjoy
Remove the trays afterwards, rinse them with cold water, and enjoy the result.
60 to 90 minutesper treatment, one tray per day. Meanwhile, you can just carry on.
After 1 to 2 traysvisibly whiter. You stop when you're satisfied.
Once every 2 to 3 monthsone tray for maintenance, and the result will last.
What's inside
Four active ingredients.
Each ingredient is chosen by a dentist and tested before it comes to your home. Here's what they do.
Phthalimidoperoxycaproic AcidActive whitening without peroxide, safe for your enamel.
GlycerineEnsures a comfortable fit during whitening.- PVPHelps the gel adhere well to your teeth for optimal effect.
XylitolTooth-friendly ingredient that inhibits bacteria and supports your oral health.
Fresh users
Freshen up your smile
How 20,000 customers use it
I thought it wouldn't work for me because I'm a bit older, but it turns out it does!– Joy
No sensitivity and no issues at all. Really great!– Soraya
I always had yellow teeth, but that's no longer a problem for me.– Eline
Love that it was developed by a dentist, and it actually works!– Mike
This is honestly the fastest glow up tip you can use.– Naomi
Good to know
The questions we get most often
No. The sharp stinging pain people associate with whitening comes from hydrogen peroxide, and Mr. Fris doesn't contain that. You'll feel the tray in your mouth, but nothing else. If it feels uncomfortable during those 60 to 90 minutes, remove the tray and brush your teeth; you can simply try again the next day.
You'll often see a difference after just 1 or 2 treatments. You can assess your satisfaction daily and stop as soon as you're happy with your results.
A touch-up once every 1 to 2 months is enough to maintain your results. How quickly your teeth discolour again depends on what passes through them: coffee, tea, red wine, and smoking are the well-known culprits.
No. Whitening agents that can damage enamel do so through high concentrations of hydrogen peroxide. Mr. Fris works with Phthalimidoperoxycaproic Acid: this breaks down discolouration without affecting the enamel itself.
Use one tray per day. You can stop as soon as you're happy with the results, usually after 1 to 2 uses.
No worries. You can try Mr. Fris risk-free for 30 days. All we ask is that you take a before photo and an after photo of your teeth with the date. Don't see results? Then you'll simply get your money back.
4.8 out of 5on Trustpilot
Ready to freshen up?
Choose how many trays you want. Five is half a year's supply, ten is a full year's. Not satisfied? You'll get your money back within 30 days.
Developed with dentist Pierre
Developed with dentist Pierre