TheraSmile Light Therapy Sonic Toothbrush
- Two light brush heads, red or blue, each paired with near infrared
- Two light brush heads, red or blue, each paired with near infrared
- Paces a full 2 minute brush, with a cue every 30 seconds
- Four modes, including a gentle setting for sensitive teeth and gums
- Up to 4 weeks between charges, easy to pack for travel
Red, blue and near-infrared, 460 to 830 nm. Why that matters
Blue light at 460 nm stays right at the surface, red at 660 nm is absorbed a little deeper in soft tissue, and near infrared at 830 nm passes further still. Building the LEDs into the brush head keeps the light at the gumline for the full two minutes, a spot a panel or wand cannot reach inside the mouth.
Depths shown are illustrative. Light supports the body's normal processes; it does not treat, cure, or prevent any condition.
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Description
The TheraSmile is a sonic toothbrush with light built into the brush head. It comes with two heads: one pairs 660 nm red with 830 nm near infrared, the other pairs 460 nm blue with the same near infrared, and each has six LEDs that switch on whenever you brush. Three of those six are near infrared and invisible to the eye, so only three lights show even though all six are running.
The handle runs at 31,000 rpm across four modes, Clean, Sensitive, Polish and White, and paces you through a 2 minute cycle with a cue every 30 seconds to move to the next quarter of your mouth. A full charge lasts up to 4 weeks of brushing twice a day, the handle is IPX7 rated for rinsing under the tap, and it remembers the last mode you used. It comes in black or white.
Is this right for you?
You'll get the most from it if
- You already brush twice a day and want light to come along with it.
- Your gums are on the sensitive side; Sensitive mode and soft bristles keep it gentle.
- You like a timer that paces each quarter of the mouth for you.
- You travel; one charge lasts up to 4 weeks.
Maybe look elsewhere if
- You were hoping for light on the face too; the TheraGlow Mask2Go is built for that.
Specifications
| Format | Sonic toothbrush with interchangeable light brush heads |
|---|---|
| Light spectrum | Red 660 nm · Blue 460 nm · Near-infrared 830 nm (by brush head) |
| LEDs | 6 per brush head: 3 red or blue, 3 near-infrared |
| Vibration | 31,000 rpm |
| Modes | Clean 320 Hz · Sensitive 310 Hz · Polish 335 Hz · White 285 Hz |
| Timer | 2-minute cycle with 30-second quadrant cues; remembers last mode |
| Battery | Up to 4 weeks per charge at twice-daily, 2-minute use |
| Power | DC 3.7V rated, 5V / 1A input; charging cable included, wall adapter not included |
| Water resistance | IPX7, for rinsing, not submersion |
| Size | Handle 7.13 × 1.10 × 1.06 in; brush head 3.40 × 0.70 × 0.69 in |
| Weight | 4 oz with brush head |
| Materials | Soft nylon bristles, ABS body |
| Colors | Black or white |
| In the box | Handle, 1 red + near-infrared head, 1 blue + near-infrared head, charging cable, user guide |
Wavelength and irradiance figures are conservative estimates based on lab spectroradiometer measurements; real-world output varies with distance and placement.
How to use
- Brush headRed and near-infrared in the morning, blue and near-infrared at night, or alternate as you prefer
- Session2 minutes, twice a day, moving to the next quarter of the mouth at each 30-second cue
- TechniquePea-sized toothpaste, bristles at 45 degrees to the gumline, move slowly and evenly
- Good to knowRinse the head after use, let it dry uncovered, replace it every 3 months, and never submerge the handle
Shipping & delivery
Free shipping within the United States on every order. Most orders ship within a few business days, and you will receive tracking as soon as your order is on its way. Larger items may ship freight with a delivery appointment.
Warranty & returns
6-month limited warranty.
Not the right fit? You have 60 days from delivery to send it back. Reach out to our team, we will email you a prepaid return label and the right address, and refund you once it arrives. Items need to come back in their original packaging. Prefer to exchange it for something else? We handle that at no extra cost.
Cancel free of charge any time before your order ships. If anything arrives damaged, send us photos of the item, the box and the SKU within 24 hours and we will sort it out for you.
See our Return Policy for full details.
Why it earns a place in the stack. Most light routines add another device and another ten minutes to the day. The TheraSmile folds red, blue and near infrared light into the two minutes you already spend brushing, with a sonic handle that times the routine for you. Swap heads to suit the day: red in the morning, blue at night.
Choose options
Frequently Asked Questions
Why does the TheraSmile come with two different brush heads?
Only three lights come on. Is my TheraSmile working?
Is it gentle enough for sensitive teeth and gums?
Do I need a special toothpaste?
How long does the battery last, and how do I charge it?
How often should I replace the brush heads?
Is there anyone who should be careful with the TheraSmile?
From the Journal
Longevity Devices for Beginners: How to Build Your First Home Stack
Red Light Therapy: What the Evidence Actually Says
Cold Plunge Benefits: A Practical Guide to Cold Exposure
Infrared Saunas and Heat Therapy: What to Know
PEMF Therapy: How It Works and What the Evidence Shows
Light and Sound Brain Wellness: How It Works and What the Science Says
Biological Age, Explained: What It Is and How Testing Works
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Our approach
Every product earns its place.
No single thing changes your biology on its own. What matters is the system, and whether each piece earns its place. Here is how a device makes it into Kove.
01
Start with the evidence
Where there is research behind how something works, we read it. We look at the real mechanism a device relies on, like the wavelength, the frequency, or the dose, and whether the evidence holds up. Substance comes before marketing, and we are honest about how strong that evidence is.
02
Separate mechanism from marketing
A claim is not a mechanism. We check a device's real output against its stated one: does the panel emit the 660 and 850nm it advertises, at the irradiance that makes those numbers matter? The marketing language gets set aside. The measurable spec is what we judge.
03
Verify build and dose
Even a good idea does nothing if the hardware is weak. We confirm the output is consistent, the dose is usable in a real daily routine, and the build holds up over years, because a device only helps if it lasts as long as the habit.
04
Held to one standard
What clears every step earns its place in the system, held to the same standard as everything else. That consistency is what you can count on.
