"People keep asking me if I've had work done." Arsy, 46, wears the ¥12,900 R3 every night.
The question. People who see her every day started asking what she had done. "The amount of people that asked me if I've gotten work done."
The biohacker. Ten years of peptides, cold plunges and red light. "The thing that has moved the needle the most is this affordable little mouth guard."
The tongue tab. The tab on the R3 keeps her tongue up on the roof of her mouth all night. "So you're essentially mewing while you sleep."
Her routine. "I'm not a very routine person," but she wears it almost every night. Her experience, not a promise.
Arsy on the R3
Eight clips. Tap any one to open it full screen with sound.
She tried everything else first
In her own words, from her clips. Her experience, not a promise.
- 1
Peptides, cold plunges, red light
"I've done the peptides, I've done the cold plunges, I've done the red light."
- 2
Facial yoga
"I try to do all of the exercises for facial yoga. I cannot stick to that."
- 3
The R3
"This is the only thing I stick to." She just wears it while she sleeps.
The R3, the guard Arsy wears every night
Worn while you sleep
Overnight, plus a few daytime hours if you want to move faster. No routine to learn.
Gentle, steady pressure
The flat-plane design supports the jaw without locking your bite, so it can settle where it should.
Ready out of the case
Premium flat silicone, food-grade tested. Ready out of the box, nothing to prepare. Backed by a 1-year warranty.
How did the R3 help Arsy?
What she comes back to in her clips. Her experience, not a promise.
People noticed
"Everyone kept asking me what I've been doing, if I've been going to the med spa."
No more morning fog
"All my morning grogginess is gone." She says she wakes up more refreshed.
Her favourite of the three
She tried R1, R2 and R3. "It's a little softer on the gums. It's a little more comfortable to wear."
Three steps. All of them easy.
Take it out of the box and wash it
Wear it to sleep and 2–3 hours during the day
Wash it and let it dry
Confused about size? Measure your width.
One measurement decides it: the width across your back molars.
Width · molar to molar
| Size | Width, molar to molar |
|---|---|
| Medium | 50 to 62 mm |
| Large | 63 to 72.4 mm |
| XL | 72.5 mm or more |
Tips: use a crisp, firm apple, make sure your teeth are clean and dry, press down evenly, and measure carefully in millimetres. No apple? Cut a piece of cardboard to the shape of your upper arch, or measure the width of a current retainer.
Need help on how to measure?
Watch how to measure your palate size with the simple bite-and-bread method:
Consistency is the whole game
- Weeks 1-2: the adjustment phase. A little soreness or extra saliva is normal, your soft tissue is adapting, not a sign anything's wrong.
- Build up gradually: shorter daytime sessions first, then overnights. Ease off for a bit if it ever gets sharp.
- Over the weeks: Arsy talks about people noticing a difference after a couple of weeks, and her face changing over months of wearing it almost every night. What she describes is her own experience, not a promise.
What people say about the R3
Questions, answered
How should I start? ›
Wearing it: the standard pattern is overnight plus 2 to 3 hours during the day. Build up gradually with shorter daytime intervals first. The early phase is the hardest and gets much easier after a few weeks.
Early discomfort: sore teeth, achy gums and extra saliva in the first weeks are the soft tissue adjusting, not a problem. Take breaks if it gets sharp, don't push through pain.
Faster results: consistency first, then simple stretches like Bite and Hold alongside the guard.
How does sizing work? ›
Width matters most. Measure the outer edges of your upper molars at their widest point, shown in this size guide.
Medium fits a width of 50 to 62 mm, Large fits 63 to 72.4 mm, and XL is for 72.5 mm or more.
Why does it work? ›
Think of the soft tissue over the skull like a balloon. Grinding your teeth down deflates it over time, what we tend to call "aging." Adding height back with gentle, consistent pressure runs the same physics in reverse.
How many people have done this? ›
Over 30,000 people have started using Reviv appliances and this method.
What is it made of, and what's included? ›
Premium soft silicone, food-grade tested. Your order is the R3 in your chosen size and colour, with its storage case and instructions, backed by a 1-year warranty.
Other people who switched to the R3
Real customers, in their own words. Tap anyone to see their story.
