★★★★★
“Did what it said. No drama. Just consistent.”
Marta L.
7 months post-treatment
(2-3-7) Post Orthodontics
4.8
· 570+ reviews
A note from Ken,
founder of Reviv
“I built this for people who did everything right during orthodontic treatment — and still felt like something was off afterward.”
570+
Reviews
4,000+
Users
3,000+
Community
Members
1 Year
Warranty
In 2014, a dentist drilled my back teeth flat during a routine procedure. Within a few months, I was in rough shape — jaw tension, disrupted sleep, a body that felt structurally wrong in ways I couldn’t explain. I spent the next decade figuring out what happened and how to fix it.
What I learned — based on my own experience and years of observation — is that teeth are more structurally important than most people realise. The way they come together affects how the jaw rests, which affects how everything above and below it sits.
Here’s what I’ve observed about orthodontic treatment specifically: braces are built to move teeth into alignment. But the support structure that was holding everything in place during treatment disappears the moment the hardware comes off. A lot of people notice their jaw feels different afterward. Not always painful — just less settled. Like something is missing.
That feeling is what I built Reviv for.
“Based on my experience,
The R3 is a structured mouthguard designed to sit comfortably in your mouth during sleep or rest.
When the jaw has a consistent resting position to return to — night after night — it can support awareness and help reinforce the habits that orthodontic treatment built.
It’s not complicated. It’s not a medical device. It’s something I developed because I needed it myself, and because the people in my community told me they needed it too.
What I’ve seen, consistently, is that the people who stick with it notice the difference. And the ones who stop notice that too.”
— Ken Leaver, founder of Reviv
Based on what Ken has observed across 4,000+ Reviv users:
- Most people adapt within the first week and stop thinking about it
- Those who use it consistently report their jaw feels more settled over time
- It fits into an existing evening routine without requiring a new one
- It's simple enough that people actually keep doing it — which is the only thing that matters
I get messages from users every week. Here are some of the ones that meant the most to me — from people who were in the same position you might be in right now.
— Ken
★★★★★
“I finished braces and kept worrying things would shift back. I wanted something I could actually do rather than just cross my fingers. Reviv was the first thing that stuck — and I mean properly stuck, not just for the first two weeks.”
Carlos M.
Daily user · Amsterdam
★★★★★
“I was in a dark place when I found this. I’d spent years and a lot of money on orthodontic treatment and I still felt like something wasn’t right with my jaw — especially at night. I’d tried everything I could find and nothing addressed that specific feeling. I bought the R3 half expecting it not to work. Five months later it’s the most consistent habit I have. I don’t know exactly what it’s doing but I know what my jaw felt like before and what it feels like now. That’s enough for me.”
David R.
Office routine · 5 months in
“I want to be honest about what this is and what it isn’t.
The R3 is a structured mouthguard made from a flexible material designed to fit comfortably in your mouth. It’s built to guide your jaw into a consistent resting position during use — during sleep, while reading, while winding down.
It’s not a medical device. It doesn’t diagnose anything or fix anything overnight. What it does — based on what I’ve seen — is give your jaw somewhere consistent to return to, night after night, so the transition out of active orthodontic treatment has something supporting it.
It comes ready to use. There’s nothing to configure, no adjustment period that requires anything from you other than putting it in. I use one myself. Every night.”
— Ken
A few more from the community:
★★★★★
“Ken’s explanation made it click for me. Then the product just did what he said it would.”
Alex P.
Daily user
★★★★★
“I’d seen Ken’s content and it made sense — the idea that teeth matter structurally, that what happens after braces isn’t always the end of the story. So when I found the R3 I already trusted the thinking behind it. Three months in and I’d buy it again.”
Julien T.
Routine builder · Paris
★★★★★
“I found Ken through his content and spent a while reading before I bought anything. His story resonated — the idea that something structural was behind a lot of what I was feeling, and that it could be addressed with something simple and consistent. I wasn’t looking for a miracle. I was looking for something I could actually do. The R3 is that. Four months in, jaw feels more stable, sleep feels better, and I’ve recommended it to two people who’ve now bought it themselves. The founder transparency is what got me over the line in the first place.”
Sophie K.
Post-treatment · Berlin · 4 months in
Frequently asked
You can use it during relaxed moments like evenings, reading, or before sleep.
No, it’s designed to be simple and easy to integrate into your routine.
Consistency is recommended to support habit-building.
Some users take a short time to get used to it, but it is designed for comfort.
You can start with a few minutes and increase as it fits your routine.
Yes, it’s designed for passive use during everyday activities.
Built by someone who needed it. Designed for people who do too.
Use code REV10 for 10% off your first order