Rayuna Jaw Pad
The jaw pad sends 660 nm red light through your cheek into the jaw muscle, so the starved muscle gets its energy and blood back and lets go, and you eat, laugh and yawn without thinking about your jaw.
A dentist-made night guard runs $300 to $400, and it is made for your teeth.
Wear it for 60 evenings. If your jaw is not better, send it back for a full refund.
You see the red light. You do not feel it. The warmth is optional and gentle. The timer switches it off by itself after 10, 20 or 30 minutes.
Judge it by your jaw at dinner and in the morning. In the trials of red light on the jaw, people were measured over four weeks, so give it four weeks of evenings. You have 60.
One adjustable size. It closes with a hook-and-loop flap on top of your head, so you set how snug it sits.
Rechargeable by USB-C. The cable is in the box.
Most are gel packs or heat wraps. They warm the skin and go cold. Check any wrap for three things: red light at 660 nm, both sides of the jaw at once, and a guarantee long enough to judge it. The jaw pad has all three, with 60 evenings to send it back.
Two fingers on your cheek, just in front of your ear, and clench for ten seconds. Feel the bulge harden and tire. That is the muscle the red light goes into, and what it does all night.
Why it works
- Red light at 660 nm goes through your cheek into the jaw muscle, so the muscle the clench starved makes energy again and the ache eases.
- The light opens the small vessels in the muscle, so blood and oxygen come back and the muscle can let go.
- Stays on both sides of your jaw without your hands, with nothing in your mouth, so you read or lie back while the light works.
- Works alongside your night guard: the guard protects your teeth, and the red light brings energy and blood back to the muscle the guard never touches.
What you get
- One Rayuna Jaw Pad: a soft black strap with its controller on top.
- A USB-C cable.
- The evening jaw routine, a short digital guide: the clench test, where the pad sits, and a 10-minute wind-down with the pad on. Free with every order.
- One jaw pad is $89. Two jaw pads are $149.
Specifics
- Light: 660 nm red light on both cheeks, along the jaw and under the chin, over the jaw muscle.
- Timer: the clock button, 10, 20 or 30 minutes, with automatic shut-off.
- Warmth: the flame button, three heat levels, for comfort.
- Power: USB-C, rechargeable.
- Fit: soft fabric strap, one adjustable size, closes with a hook-and-loop flap on top of your head.
- Also wraps the forehead, upper arm or wrist.
Shipping and returns
- Free shipping. Delivered in 7 to 12 days.
- Wear it for 60 evenings. If your jaw is not better, send it back for a full refund.
- To send it back, reply to your order email within 60 evenings.
Your jaw muscle is not too tense. It is starved, and red light brings its energy and blood back so it can let go.
You were told your jaw hurts because of stress, your bite or your teeth. The pain is in none of those. It is in the jaw muscle, the masseter, the hard bulge just in front of your ear, and that muscle has been starved.
Every time it clenches, it squeezes its own blood supply shut. It does this for hours, in your sleep and while you concentrate, and you feel none of it. When researchers measured the oxygen inside the jaw muscle during clenching, it dropped, and the harder and longer the clench, the further it fell and the slower it came back. A muscle with no oxygen coming in runs out of energy, and a muscle with no energy cannot let go. That is why it aches, and why it hurts most when you ask it to bite, laugh or yawn.
The starved muscle
After a day and a night of clenching, the jaw muscle is low on oxygen and low on energy. Scans of the jaw muscles of people who grind found less of the energy store a muscle runs on. It stays tight because letting go takes energy it no longer has.
Light through the cheek
The jaw muscle lies right under the skin of your cheek. The jaw pad holds 660 nm red light against both cheeks, and red light at that wavelength passes through the skin into the muscle underneath. Your guard sits on your teeth and a heat pack warms the surface. This is the first thing that gets into the muscle itself.
The cells make energy
Inside every muscle cell are the small parts that make its energy. They take in red light and make more of it. In a study on muscle cells in a dish, red and near-infrared light raised the energy the cells made to more than three times the level of untreated cells within hours. The starved muscle gets back the one thing it ran out of.
The vessels open and the blood comes back
Red light makes the small blood vessels in the muscle widen, so blood and oxygen flow back into the tissue the clench squeezed shut. The light also calms the signals in that tissue that keep it sore and swollen.
The fed muscle lets go
With energy and blood back, the muscle releases, tires less and the ache eases. When researchers shone red LED light on the jaw muscle, it lasted longer before it tired, and in two trials 660 nm red light on the jaw lowered pain more than a device that gave no light. You wear it every evening, both sides at once, hands-free, so the muscle that was starved all day is fed before the night's clench, and dinner, laughing and yawning stop being things you brace for.
Why the guard and the heat pack never reached the starved muscle
Look at what you were given. Each one was aimed somewhere other than the muscle.
| Night guard | Heat pack | The jaw pad | |
|---|---|---|---|
| Where it acts | On your teeth | On the skin | In the jaw muscle |
| Puts energy into the muscle | |||
| Brings blood and oxygen back | A little, while warm | ||
| Stays on without your hand | |||
| Nothing in your mouth |
The night guard
The night guard sits on your teeth. It protects them from the clench, and it puts nothing into the muscle doing the clenching. The muscle clenches on the guard all night and stays starved. As one person with jaw pain put it: "They help protect my teeth and my tongue from being bitten. But the grinding is still there and the muscle spasms too."
Being told to relax
Being told to relax cannot reach a clench you do not feel. It happens in your sleep and while your mind is on something else.
The heat pack
The heat pack comes closest, and that is why it helps a little. Heat on the jaw brings some blood toward the surface while it is on. Then the pack goes cold or your hand gets tired, the blood drains away and the muscle is as starved as before. Heat never puts energy into the muscle. Another person wrote: "Warm compresses sometimes reduce the discomfort, but they don’t change the pattern."
Red light is the first thing that goes into the muscle and makes its cells produce energy again, so instead of managing the ache every evening, you give the muscle what it ran out of and it lets go.
Each part of the jaw pad does one job: get red light into your jaw muscle every evening
660 nm red light, both cheeks and under the chin
The rows of red lights sit along both sides of your jaw and under your chin, right over the jaw muscle. Red light at 660 nm passes through the skin into the muscle, where the cells take it in and make energy and the small vessels open so the blood comes back. This is what the jaw pad is for, and it is why the ache can let go.
660 nmBoth sides at once, hands-free
The strap holds the light on both cheeks together and stays put by itself, so the muscle gets its full session while you read or lie back.
Hands-freeA timer with automatic shut-off
Set 10, 20 or 30 minutes and forget it. It switches off when the time is up, so you never watch the clock.
10 · 20 · 30 minA heat button for comfort
Three levels of gentle warmth make the session pleasant. The red light is what brings energy and blood back to the muscle.
3 levelsSoft fabric, nothing in your mouth
One adjustable size closes with a hook-and-loop flap on top of your head. Nothing goes in your mouth, so there is nothing to gag on.
One sizeWrap it on in the evening, set the timer, and let the red light work while your hands are free
Wrap the strap under your chin and up both cheeks, so the red lights rest on the jaw muscle.
Close the flap on top of your head. The one size adjusts to fit.
Press the clock button to set the timer, and the flame button if you want gentle warmth. Both buttons are on top of your head.
Pick up your book or the remote. The red light stays on the muscle without your hands and switches off when the timer ends, and your evening goes on as normal.
Keep your night guard. It protects your teeth and feeds nothing into the muscle.
You paid for the guard, and it does its job: it keeps your teeth from wearing down. Nothing about the jaw pad asks you to stop wearing it.
But the guard sits between your teeth. The muscle still clenches on it, still squeezes its own blood supply shut, and gets nothing back from the guard. That is why so many people wake up with the guard in and the ache still there. One wrote: "i wear a night guard but i still wakeup with a headache that lasts all day and pain in my masseter / ears"
The jaw pad does the other job. In the evening it sends red light into the muscle from the outside of your jaw, and it never touches your guard, your teeth or your mouth. If your guard makes you gag, or you gave up on it, the jaw pad still works for you.
You keep the guard for your teeth, and the muscle that aches is finally fed.
Red light on a jaw sounds like a gimmick, so here is what you can check yourself
People with jaw pain have been sold a lot, and some of them are blunt about red light. One wrote that it is "the biggest pseudo-scientific pile of crap". If you feel that way, you are not alone.
You do not have to take anything on trust to start. Find the muscle with your own fingers: two fingers on your cheek, in front of your ear, clench and hold for ten seconds. Feel it harden and tire. That is the muscle that is starved, and it is right under your skin.
Put the jaw pad on and look in a mirror: the red light sits on both cheeks, over that muscle. The light is not a mood lamp. Red light at 660 nm is what researchers put on the jaw in trials, and in two of them it lowered jaw pain more than a device that gave no light.
You judge it on your own jaw, in your own evenings, with your hands free while it works.
Wear it for 60 evenings. If your jaw is not better, send it back for a full refund.
The guarantee is simple. You wear the jaw pad for 60 evenings, in your own home, on your own jaw.
If your jaw is not better, you send it back and get a full refund. You decide, not us.
A dentist-made night guard runs $300 to $400, and it is made for your teeth. One person with jaw pain wrote about a night guard: "It helped, but it was also over $2k, which is a lot of money for something I gnawed through." The jaw pad is $89, with free shipping and the evening jaw routine included.
Two jaw pads are $149. Either way, you find out on your own jaw, in your own evenings.
What studies found about the starved jaw muscle and red light
When they measured the oxygen inside the jaw muscle during clenching, it dropped. The harder and longer the clench, the further it fell and the longer it took to come back.
In people who clench a lot during the day, the oxygen drop on a hard clench was about five times bigger than in people who do not, and during a long clench the blood flow into their jaw muscle barely rose, where in the others it rose about six-fold.
Scans of the jaw muscles of people who grind found less of the energy store a muscle runs on.
In muscle cells, red light raised the energy the cells made. In blood vessels, red light released the substance that makes small vessels widen, and they opened.
Red LED light on the jaw muscle made it last longer before it tired. In two trials, 660 nm red light on the jaw lowered pain more than a device that gave no light.
What people with jaw pain say
And from people with jaw pain, writing about the problem in forums and in comments. They are not reviews of the jaw pad.
Why we made it
We read what people with jaw pain write. The same thing came up again and again: they are handed a guard for their teeth, or told to relax, or told to use a warm compress.
Then we read what researchers measured inside the jaw muscle. The clench squeezes its own blood supply shut, the oxygen drops and the muscle runs out of energy. Nothing people were handed fed it. The guard protects the teeth. The compress goes cold. Being told to relax does nothing for a muscle that clenches in your sleep.
So we made the jaw pad to feed that muscle: a soft strap that holds red light on both sides of the jaw while you rest, so the muscle gets its energy and blood back and you get your meals, your laugh and your mornings back.
Questions
How does red light work on a jaw muscle?
The jaw muscle sits right under the skin of your cheek. Red light at 660 nm passes through the skin into it. The muscle cells take the light in and make more energy, and the small vessels widen so blood and oxygen come back into the muscle the clench squeezed shut. With energy and blood back, the muscle can let go, and the ache eases.
Is heat not enough?
Heat helps a little while it is on, because it brings some blood toward the surface. Then it goes cold, the blood drains away, and it never puts energy into the muscle. One person wrote that heat compresses "maybe provide temp relief but that’s it". Red light goes into the muscle, and its cells make energy from it. The jaw pad has a heat button too, for comfort, but the red light is what does the work.
Can I use it with my night guard?
Yes. Wear the jaw pad in the evening and your guard at night as you do now. Nothing goes in your mouth, so the two never touch.
How do the buttons work?
Two buttons on top of the controller. The flame button sets the warmth, with three levels. The clock button sets the timer to 10, 20 or 30 minutes, and the jaw pad switches off by itself at the end.
How do I charge it?
It is rechargeable by USB-C. The USB-C cable is in the box.
What size is it?
One adjustable size. It closes with a hook-and-loop flap on top of your head.
What if I forget it is on?
The timer switches the jaw pad off by itself after 10, 20 or 30 minutes. If you use the warmth, you pick one of three levels with the flame button.
Can I use it anywhere else on my body?
The same strap also wraps the forehead, the upper arm or the wrist.
What is the evening jaw routine?
A short digital guide, free with every order. It has the clench test, where the pad sits, and a 10-minute wind-down with the pad on.
What does shipping cost and when does it arrive?
Shipping is free. It is delivered in 7 to 12 days.
Two jaw pads for $149
Two jaw pads: one for home, one to give or to keep in your bag. $149 for the pair, $29 less than two singles. Free shipping, the 60-evening guarantee and the evening jaw routine come with the order.
Red light for the jaw muscle, worn at home in the evening.