R1 (RevivOne) with One Month Free Trial to Community
R1 (RevivOne) with One Month Free Trial to Community


Size | Length | Width | Height | Best for |
---|---|---|---|---|
Small | 6.5 cm | 4.7 cm | 2.5 cm | Teens & small adult mouths |
Large | 6.7 cm | 5.3 cm | 3.3 cm | Most adults |
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"Structurally and neurologically I feel so much better after I started the Reviv."
- Fast Shipping
- Secure Checkout
- 90-Day Guarantee
How it works?
How it works?
- Wear the mouthguard every night and as much as you can during the day (eg. 1-2 hours)
- The soft tissue of the jaw and skull begin to unwind and many health issues begin to improve.
Our Guarantee
Our Guarantee
There is no guarantee when you purchase the appliance without support as we do not know if you are using it correctly.
Shipping Information
Shipping Information
- Shipping typically takes 7-10 days to most destinations including the US.
- Orders typically ship within 24 hours and you will receive a tracking number by email as soon as it ships.




Ken Leaver
Reviv Founder
"In 2020 I was exhausted by 6pm and got sick a couple times a year. For the last two years at the age of 47 I work from 8am till past 10pm everyday without burning out. I haven't been sick in over four years and I feel like a beast everyday."
I noticed results almost immediately. My nighttime clenching eased during the first use, and that alone started to reduce the masseter trigger points I’ve been dealing with for years. I’ve also seen visible, welcome changes in how my teeth are aligning. The tension in my jaw is lower overall, and my sleep is restful.
Ken, the creator, has been kind and responsive anytime I’ve had a question. It’s rare to get that kind of support directly from the person who built the thing, and it matters.
After wearing it for 30 days straight I noticed when I walk that my body wants to have an upright posture, head and shoulders back, lumbar spine forward, the butt also perked backward. 🙂 A domino effect in the entire posterior chain. That's the position ithe body feels comfortable in now and not the slouched posture I had before. Can't wait to see what other benefits I encounter on this journey. Thanks Ken! 🫡
I really feel the difference this thing makes while wearing it. You can feel that your sutures are moving and stretched. Only thing is that it hurts gum especially in my case cause i had a teeth surgery and my gums are extra sensitive. But thats the only thing really
Wire it less than a month and it ripped. I don’t even grind.
Only been wearing it nightly for a week but see and feel changes. Over bite being corrected, teeth straightening. Looking forward to coming weeks.
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HOW REVIV WORKS
There are some basic biomechanics to how the skeleton and skull work, which result in it collapsing over time.
Particularly if you did orthodontics, extractions, or grind your teeth because those things flatten your 'curve of spee', which is the natural curve of how your upper & lower teeth make contact.
And Reviv essentially reverses that collapse, thereby reinflating the skull and skeleton back to their healthy state.

Addresses TMJ
"I've been wearing my appliance for 3 weeks now. No more TMJ pain at all! I can do chin tuck exercises without my neck muscles spasming and cramping." - Jay

Gives you back energy
"I wear it when driving the bus. A day of work that normally knocks me out the next day had me full of energy. Even when i got home after a very long day. I love this thing!" - George

Eliminates brain fog
"Although i'm a software developer I spent about a year carrying boxes in a warehouse because of the thick brain fog i had. I've been wearing Reviv since early November and brain fog is gone. I just recently started a job working as a developer again!" - Ivan

Fixes Posture
"I noticed the other day the area where my neck meets my upper back is more flat . I always had a bit of kyphosis and rounded soldiers and it seems to be correcting." - Harvwin
WHY PEOPLE LOVE REVIV
Fast results
95%+ of folks that start Reviv feel something improving in the first week.
Personalized support
Ken reviews everyone's journals each week to stay up on their progress and give them personalized advice.
You can also ask Ken a question as a message anytime.
Affordability
We view that we are democratizing health to the masses. While TMJ dentists charge thousands of dollars we're delivering far better results at something like 1-2% of what they cost.
Learn More About How This Method Works
I Am Going to Challenge What You Believe About Health
Read postChallenges traditional health views, introduces the balloon theory, and explores how dental health affects overall well-being.
The Balloon Theory
Read postExplains how dental health impacts overall well-being by linking teeth to various health issues and introduces methods for addressing these connections.
How to Correct the Problem
Read postProvides strategies for addressing dental health issues and correcting related problems for improved overall well-being.
What Is Impacted by These Biomechanics?
Read postExplores how dental biomechanics affect various aspects of health and well-being.
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?
About 5,000 people have started using the appliance and this method since early 2023.
How does sizing work?
Note that there is a 'Size chart' above that you should refer to for measurements of our appliances.
For R1:
- We generally recommend adults to get a large as our large is not that large and our small is pretty small.
- The small can be used for children from about age 8 and up.
- Most adults with a smaller mouth will be fine with a small or a large, but will generally get a bit more of a stretch with our large.
- We have a special offer to get both sizes for the same price when purchasing the support package. So write to cs@getreviv.com if you want instructions on how to do that.
For R2:
- The R2 large is the same width as the R1 large but is a bit longer. So if you were comfortable with the R1 large we recommend you get the R2 large size.
- The R2 medium is a bit larger than the R1 small and so is good for adults with a smaller sized mouth.
- The R2 does not currently come in a small size.
How are R1 and R2 different?
Here is our view:
- Material: R2 is made of liquid silicone which is stronger and far more durable than the R1. This makes R2 a better appliance for folks that clench and grind.
- How long it lasts: R1 will probably last 3-4 months before it deforms whereas we believe R2 will last at least a year.
- Guarantee: R1 has no guarantee. R2 is guaranteed for one year with a max of two free replacements.
- Design: R2 is a bit easier on the gums as it doesnt ride as high up on the gums as R1
- Price: R1 ($25) vs. R2 ($80), however
If you want to read more about the differences then check out this article: https://reviv.substack.com/p/introducing-the-r2-revivtwo
What is the appliance made out of?
It is made out of 100% food grade silicone.
OTHER PRODUCTS
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R1 (RevivOne) + Support Package
Regular price 100 USDRegular priceUnit price / per -
Community & Support Subscription
Regular price 75 USDRegular priceUnit price / per