(2-1-3) Brainfog

You’re not losing
your mind.
Perhaps something
mechanical is happening

And in many cases, people notice meaningful improvement over time

Many users report noticeable improvements within 8 weeks

Skull x-ray illustration showing brain anatomy

Why You’re Experiencing Brain Fog

Reviv mouthguards are designed to support jaw balance in cases of structural compression

Orthodontics,
extractions, veneers

Skull under compression from orthodontic changes

Changes in jaw structure

Teeth grinding,
jaw tension

Skull showing progressive jaw compression

Ongoing Structural Stress

The Result You Feel

Brain enveloped by fog illustrating mental fatigue

Tension patterns some people associate with brain fog, mental fatigue, or reduced clarity

Structural Support: How It Works

Reviv is designed to support natural jaw positioning and help ease structural tension that may be contributing to how you feel.

Phase 1 — Accumulating (few weeks)
Gums and teeth can hurt a bit
Some mental clarity improvement
Phase 2 — Gradual Progress (varies by individual)
Some users report improved clarity
(focus, clarity of thought, etc)
Some users report feeling better overall
Phase 3 — Slower Progress (2+ yrs)
Slower, but continued progress
You will need to do additional stretching beyond just the mouthguard

Happy Customers. Real Results

Over 20,000 people have started their Reviv journey. Here are just a few of their stories.

★★★★★ 4.8 / 5 20,000+ users Most notice changes within 8 weeks

I’ve been dealing with this foggy, heavy-headed feeling for about three years. I tried everything — supplements, sleep hygiene, cutting caffeine, you name it. A friend mentioned Reviv and honestly I thought it sounded too simple to matter. I started using it at night about six weeks ago. By week three I noticed I could hold a thought longer in meetings, and the heavy feeling behind my eyes started easing up. I’m not going to overstate it — it’s not a miracle — but it’s the first thing that’s actually moved the needle. I’m pretty careful about what I recommend to people, so when I say this is worth trying, I mean it.

Sophie R. Sophie R., daily user — 6 weeks in

Some people even start wondering if something bigger is going on. I hadn’t slept properly in months before starting reviv. Changing structure is the way — I’ve never felt so organized and at peace. It took about a month to really feel it, but the difference is real.

Edward Edward, using it nightly

I feel like most of my brain fog has improved. I don’t really understand the biomechanics of it but it’s definitely from reviv. I introduced 3 of my friends already.

Caleb Caleb

The differences are just awesome. I feel brighter, like my head is clearer overall — I feel more like myself again. Just full of energy. Honestly, it’s amazing.

Hector Hector, 3 months in

Used it for 2 weeks and already sleeping deeper. Focus at work is noticeably better.

Marcus T.

Wasn’t sure at first. By week four I stopped second-guessing it.

Jamie L.

First thing in months that actually made a difference to how I feel in the morning.

Priya S., office worker

Meet R3: Support For Jaw Balance

A device designed to support vertical jaw positioning

R3 + 1 Year of support

80 USD
  • Supports vertical dimension to help reduce upward jaw pressure
  • Repositions the jaw for long-lasting collapse
  • Designed to help reduce jaw tension
  • Designed to promote more relaxed, restorative sleep patterns
Order R3 Now — 80 USD
Reviv R3 THREE packaging with yellow mouthguard
R3 size and details chart
R3 versus R2 comparison
Reviv R3 detail
Reviv R3 detail
Reviv R3 in use
Reviv R3 mouthguard front view

Ready to Reclaim Your Mental Clarity?

Join many others who stopped accepting brain fog as “normal” and started their Reviv journey.

“I added it to my nighttime routine and honestly forgot it was even an experiment — it just became normal. The clarity thing crept up on me slowly and then one day I realized I hadn’t felt foggy in weeks.”

Daniel W., 4-month user
★★★★★

“Worth every penny for what it does for my mornings.”

Rachel M.
R3 product with support

Order your R3 + Support

Our latest appliance which is designed to stretch the soft tissue that takes compression off the brain. Delivered to your door with free shipping.

Community access screenshot

Join the community

Connect with others on the same journey. Access expert guidance, progress tracking tools, and stay motivated with real success stories.

Progress tracking example

Track your progress

Document your progress with photos and symptom tracking. Watch your improvements unfold week by week. Most notice changes within 8 weeks.

Learn More About Brain Fog

Addressing brain fog

Addressing brain fog with these biomechanics

So far I’m 3 for 3. And I don’t think I’ll ever lose.

Read more →
Max kicks brain fog

Max kicks brain fog with Reviv

Max was in my first test group in early 2023 and managed to get rid of pretty severe brain fog in a little over a month.

Read more →
Cognitive function

This stuff determines cognitive function

Each time I got worse it felt like my IQ plummeted. Each time I got better it felt like it rocketed up. And I did this numerous times in 10 years.

Read more →

Frequently Asked Questions

Most users wear it at night as part of their sleep routine. Some also use it during rest or quiet periods during the day. Consistency matters more than timing.
There’s usually an adjustment period of 1–2 weeks. It can feel unusual at first, but most users find it becomes part of their routine fairly quickly.
Individual timelines vary. Some users report noticing small changes within the first few weeks, while others see more gradual shifts over several months. Most who stick with consistent use report improvement.
R3 is designed with a low-profile fit to minimize disruption during sleep. Comfort improves as your jaw adjusts to the new positioning over the first few weeks.
The mouthguard is designed to support jaw positioning on its own, but the program also includes guidance on complementary stretches and habits that may support your progress over time.
R3 comes with sizing guidance and the support program includes assistance to ensure proper fit. If something feels off, the support team can help.

Ready to Start?

Join thousands of others who made Reviv part of their daily routine.

Get Reviv — 80 USD