169 reviews

R3 (RevivThree)

R3 (RevivThree)

$150.00
$150.00
SAVE 0% Sold out
Medium/Yellow
Medium/Yellow
Large/Yellow
Large/Yellow
XL/Yellow
XL/Yellow
Medium/Clear
Medium/Clear
Large/Clear
Large/Clear
XL/Clear
XL/Clear
Size/Colour (View Size Chart)
How many in the past?
  • 1 year access to community
  • Ability to direct message and have your questions answered
HSA/FSA eligible Save an average of 30%
Andrew from SKOOL Community Andrew
"Structurally and neurologically I feel so much better after I started the Reviv."
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Frequently Asked Questions

How it works?
  • Wear the mouthguard every night. Short daytime sessions of 1–2 hours can also support consistent use.
  • The flat-plane design provides stable vertical jaw support without locking the bite, allowing the jaw to rest more naturally during sleep.
  • You get 1 year of access to our Skool community where you have direct access to Ken and hundreds of others going through the same process.
  • Ken provides personalised support by checking your progress journal weekly.
  • Shipping typically takes 9-13 days to most destinations including the US. More remote countries can take longer.
  • Orders typically ship within 48 hours and you will receive a tracking number by email as soon as it ships.

Every R2 & R3 Reviv appliance includes a 1-year replacement guarantee. If it breaks under normal use within 12 months of purchase, we'll replace it free — one free replacement (of either R2 or R3) per customer account. Email contact@revivvital.com with your order number and a picture of the damaged mouthguard to claim.

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The Problem

People today are having more physical and mental health issues than ever before

Postural issues
Depression and Anxiety
Chronic fatigue and poor energy
ADHD, OCD, etc.
Obesity

The traditional ways of fighting these things is falling way short

Pharmaceuticals
Diet / Eating healthy
Exercise
Medical procedures

We at Reviv believe that there might be a structural root cause

There is essentially a set of physics that hold the body up and teeth play a critical role in this
Because of these physics the skull can essentially collapse inwards due to changes in the teeth
The health of the skull is reflected by the quality of the curve of spee (how the upper and lower teeth come together)
Orthodontics, extractions and grinding result in the flattening of this curve of spee

We believe the skull can be inflated like a ball

Deflating is what we believe causes aging, asymetry and is at the root cause of most disease

Inflating reverses all of those things and can be achieved with the help of a mouthguard

As the skull 'inflates' the curve of spee improves

The Solution

Person wearing a Reviv mouthguard

A simple mouthguard addresses this structural collapse at its root cause

The mouthguard acts like a doorstop that prevents the jaw from closing
This stretches the soft tissue in the mouth and covering the skull
When the soft tissue stretches the skull inflates and the skeleton untwists

The teeth correct as a function of the skull correcting

The cranial bones move outwards into better symmetry, the jaw moves to where it should be
The teeth are connected to the bones & jaw, and so they 'go for the ride' and straighten as a result
The body will function better and be stronger and more flexible as a result

Reviv makes three big hypotheses about the future of biomechanics:

Root cause of almost all disease

Is disease a function of biomechanical collapse?

Root cause of aging

If we don't collapse, maybe we don't die?

Root cause of beauty

Can we look like a model if we take this to the end?

What should I expect from doing Reviv?

1 Week
  • Likely some initial discomfort in the teeth and gums
  • May take a few nights to get used to sleeping with it
1 Week
1 Month
  • The mouthguard is starting to get more comfortable
  • You might notice some differences in how your teeth fit together
  • Many users find their jaw feels less tense in the mornings
  • You may notice you're waking up without the tight, clenched feeling
1 Month
1 Year
  • You will likely function better (concentration, ability to handle complexity, etc)
  • There's a good chance you have more energy and stamina than in years
  • You probably will look better than you have in years
1 Year
2 Years
  • The mouthguard alone has plateaud but you're doing the 'fast method' stretches that are recommended in the community
  • Things just keep improving functionally and aesthetically
  • It seems almost difficult to get sick and you seem to be in a good mood naturally most of the time
2 Years
Beyond 2 Years
  • You're playing for the 'end'
  • Does this process really go as far as this crazy guy, Ken, thinks it does?
Beyond 2 Years

How to use

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

Customer Reviews

4.5

169 reviews

★★★★★
Saida Rasulova Verified
AE flag • 09/03/2026

I’ve been using Reviv 3 for about two months now — although I haven’t been...

I’ve been using Reviv 3 for about two months now — although I haven’t been completely consistent because of my summer travels. And even with that, I started noticing some changes surprisingly quickly.

Customer review video
★★★★★
Christy Roewe Verified
US flag • 08/30/2026

r3

i LOVE my r3!

★★★★★
Anonymous Verified
GB flag • 08/29/2026

Obsessed with the mouthguard and changes

Obsessed! I have a deep overbite so it’s slightly more challenging to get it to stay in over night but it’s getting easier. The stretch it gives me is amazing. Teeth are starting to shift as I get closer to keeping my bite open. Lots of unexpected body benefits.

★★★★★
Jackie Donn Verified
NZ flag • 08/25/2026

By the time I got this model I had been using the earlier model for 15 months with...

By the time I got this model I had been using the earlier model for 15 months with great success.R3 is a real step up, its easy to use and the effects immediate ... noticed my back was stronger and this winter an improved imunity. My body is 75 and I am still able to garden and keep active.

★★★★★
Sunny Alley Verified
US flag • 08/24/2026

Love it!

Love it! It has saved my teeth! It’s easy to use and very durable.

★★★★★
Phyllis Verified by Shop
08/19/2026

Well made, affordable, great customer service & support.

Review written in Shop App
...

Learn More About How This Method Works

  • I Am Going to Challenge

    I Am Going to Challenge

    Challenges traditional health views, introduces the balloon theory, and explores how dental health affects overall well-being.

    Read more Read about the post
  • The Balloon Theory

    The Balloon Theory

    Explains how dental health impacts overall well-being by linking teeth to various health issues and introduces methods for addressing these connections.

    Read post Read about the post
  • How to Correct the Problem

    How to Correct the Problem

    Provides strategies for addressing dental health issues and correcting related problems for improved overall well-being.

    Read post Read about the post

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Frequently Asked Questions

How should I start Reviv? Is there anything to be aware of?

Yes there are a few things to know going in.

On wearing it: The standard pattern is overnight + 2-3 hours during the day. Build up gradually with shorter intervals during the day first rather than going straight to overnights — that helps the soft tissue adjust. Most folks find the early phase is the hardest part and it gets significantly easier after a few weeks usually.

On early discomfort: Pretty common in the first few weeks. Sore teeth, achy gums, occasional small sores in the mouth, the lips not closing fully, extra saliva — all signs the soft tissue is stretching, not signs something is wrong. Take it at your own pace. If the soreness gets sharp, take a short break — a few hours or even a day or two off is fine. Stick with it but don't push through pain.

On accelerating results: What matters most is consistent use and then stretching to accelerate. The Fast Method in our Skool community has some stretches we recommend, including the Bite & Hold exercise that works alongside the mouthguard: Learn more

On mouth taping: A lot of folks tape at night to keep the mouth closed and help with guard retention while the tissue is still adjusting. Pairs well with the Reviv.

A good place to learn more before and during the process is our Skool community — 1 month free trial.

Why does this work?

Think of the soft tissue (e.g., fascia & skin) covering the bones of the skull as a balloon. When you grind your teeth down, it is as if you're taking air out of the balloon.

When this balloon deflates, it crushes the skull, which in turn crushes the brain and causes cognitive and neurological issues over time.

In general, we as a society like to call this process 'aging.' But if you grind down your teeth faster, you 'age' faster. The good part is you can reverse the process by using the same physics in reverse, i.e., you 'add' height back to the teeth.

How many people have done this process?

Over 20,000 people have started using the appliance and this method since late 2024.

How does sizing work?

Generally the width is the most important criteria and we recommend measuring the width of the outer edges of your upper molars at their widest point as we show in this size guide.

What is support?

When you purchase the 1-year support package you get access to:

  • Our highly engaged Skool community of 3000+ members that are doing this process
  • Classroom of 60+ videos explaining how this works
  • A journal to track your progress, which Ken tracks and comments on a weekly basis on
  • Ability to DM Ken with your questions

Watch this video for more information about support.

What is the appliance made out of?

It is made of premium soft silicone

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