How it works

Freshen up at home. In four steps, without the hassle.

Put the trays in, leave them for 60 to 90 minutes, take them out. Klaas shows how it works in one minute, and dentist Pierre explains what's in it and why it's safe.

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Freshen up my smile View the steps
Mr. Fris in 1 minute
The glow-up

Four steps to a fresher smile.

No complicated devices or appointments. You put the trays in, leave them in and take them out again. That's it.

View Mr. Fris Trays

Dry your teeth

Dry your teeth thoroughly with toilet paper or a towel before putting in the trays.

Put in the trays

Put in the bottom tray first, then the top one. Gently click them into place.

Wait 60 to 90 minutes

Keep the trays in for 60 to 90 minutes. Meanwhile, just carry on with your day.

Take them out and enjoy

Remove the trays afterwards, rinse with cold water and enjoy the result.

60 to 90 minutesper treatment, one tray a day. Meanwhile, you just carry on.
After 1 to 2 traysvisibly whiter. You stop as soon as you're happy.
Once every 1 to 2 monthsone tray for maintenance, and the result lasts.
What's inside

Four active ingredients.

Every ingredient is chosen by a dentist and tested before it reaches your home. Here's what they do.

  • Phthalimidoperoxycaproic AcidActive whitening without peroxide, safe for your enamel.
  • GlycerineEnsures a comfortable fit while whitening.
  • PVPHelps the gel adhere well to your teeth for optimal effect.
  • XylitolTooth-friendly ingredient that inhibits bacteria and supports your oral health.
View all ingredients
Fresh users

How 20,000 customers use it

Freshen up your smile
Geverifieerd
I thought it wouldn't work for me because I'm a bit older, but it turns out it does!
– Joy
Geverifieerd
No sensitivity and no issues at all. Really great!
– Soraya
Geverifieerd
I always had yellow teeth, but that's no longer a problem for me.
– Eline
Geverifieerd
Love that it was developed by a dentist, and it actually works!
– Mike
Geverifieerd
This is honestly the fastest glow up tip you can use.
– Naomi

Good to know

The questions we get most often

All questions

No. The sharp twinges people associate with whitening come from hydrogen peroxide, and Mr. Fris doesn't contain any. You'll feel the tray in your mouth, nothing more. Does it still feel unpleasant during those 60 to 90 minutes? Take the tray out and brush your teeth; you can simply try again the next day.

You'll often see a difference after 1 or 2 treatments. You can judge each day whether you're happy and stop as soon as you like the result.

A top-up once every 1 to 2 months is enough to maintain your result. How quickly your teeth discolour again depends on what passes them: coffee, tea, red wine and smoking are the usual culprits.

No. Whitening products that can damage enamel do so through hydrogen peroxide in high concentrations. Mr. Fris works with Phthalimidoperoxycaproic Acid: it breaks down discolouration without touching the enamel itself.

Use one tray a day. You can stop as soon as you're happy with the result, usually after 1 to 2 times.

No worries. You can try Mr. Fris risk-free for 30 days. All we ask: take a dated before photo and after photo of your teeth. No result? Then you simply get your money back.

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Ready to freshen up?

Choose how many trays you want. Five lasts half a year, ten a whole year. Not happy? You'll get your money back within 30 days.

  • Developed with dentist Pierre