World's Most Research Best Light Therapy Glasses
Reset your body clock with retimer 3, wearable light therapy glasses designed to support healthier sleep timing, easier adjustment to changing schedules, and better daytime alertness.
retimer 3 delivers targeted blue-green light while you go about your morning routine, work, travel or daily activities. Its lightweight design makes light therapy simple to fit into real life.
4.5
25+ years of research
Australian light science
Clinically proven
Circadian rhythm support
Lightweight wear
Made for everyday movement
Apple + Health Connect
Fits your existing routine
Your body has its own internal clock. It helps determine when you feel awake, when you feel tired and when your body is ready for sleep.
But travel, shift work, late nights, early mornings and changing routines can make that rhythm harder to maintain.
retimer 3 light therapy glasses provide a convenient way to introduce carefully timed light into your routine. Instead of sitting in front of a traditional light box, you can wear retimer 3 while having breakfast, working at your desk, reading or getting ready for the day.
The goal isn’t to completely change your lifestyle. It’s to give your body clock the light signal it needs at the right time.
Light therapy glasses are wearable devices that use controlled light exposure to support the body’s natural circadian rhythm.
Unlike a traditional light therapy lamp, light therapy glasses are designed to sit comfortably on your face and deliver light toward your eyes while leaving your hands free.
retimer 3 uses blue-green light around 500 nm, a wavelength range used in research into circadian rhythm and light-based sleep interventions.
This makes wearable light therapy particularly useful for people whose schedules don’t always allow them to spend time sitting beside a conventional bright light source.
Light is one of the strongest environmental signals that helps your body understand when it is day and when it is night. When light reaches the eyes, it sends information to the brain’s circadian system. The timing of that light exposure can influence the timing of your sleep-wake cycle. retimer 3 provides a controlled blue-green light signal designed to support this process.
Light → eyes → circadian system → body-clock timing
The important part is when you use light therapy. Morning light can be used to help shift your body clock earlier, while appropriately timed light later in the day can help shift it later. The best timing depends on your sleep schedule and the goal you’re trying to achieve, which is why the retimer app can help guide your routine.
If your sleep schedule has become inconsistent, appropriately timed light exposure may help support a more regular sleep-wake rhythm.
retimer 3 is designed to help provide that light signal without requiring you to reorganise your entire morning.
Crossing time zones can temporarily disrupt your body’s internal clock.
Timed light exposure is one of the tools used to help the body adjust to a new schedule. retimer 3 gives travellers a portable way to incorporate light therapy into a jet-lag routine.
Working early mornings, nights or rotating shifts can make maintaining a consistent sleep schedule difficult.
Light therapy can be incorporated into a carefully timed routine to help support adjustment to changing work and sleep times.
When your body clock and daily schedule aren’t aligned, you may feel tired or sluggish at times when you need to be awake.
Using light at an appropriate time can help provide a stronger daytime signal and support alertness.
Traditional light therapy often means sitting in one place for a set amount of time.
retimer 3 is wearable, so you can continue with simple activities while using it.
Light therapy works best when it can become part of your everyday routine.
retimer 3 is designed to be used while doing ordinary activities such as:
Its lightweight 36-gram design and adjustable nose pads are intended to make everyday use more comfortable. The device can also be worn with prescription glasses.
retimer 3 uses four LEDs to deliver blue-green light with a dominant wavelength of approximately 500 nm.
The frame sits below the eyes, allowing retimer 3 to be used with many prescription glasses.
At approximately 36 grams, retimer 3 is designed to be lightweight enough for regular use.
Three nose pieces are included to help create a more comfortable fit.
The integrated rechargeable battery provides up to approximately 5.6 hours of use, depending on usage conditions.
Charge retimer 3 using the included USB cable and a compatible 5V USB power source.
Knowing that light affects your circadian rhythm is one thing. Knowing when to use it is another. The retimer app helps you create a personalised light therapy schedule based on your routine and goals. You can use the app to stay on track with your sessions and monitor your progress. retimer 3 also supports integration with Apple Health and Health Connect, helping you bring your sleep and wellness information together in one place. retimer 3 uses four LEDs to deliver blue-green light with a dominant wavelength of approximately 500 nm.
“The best of 2024” •
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“retimer 3 Daily Sleep Wearable for Better Sleep Management and Wakefulness” •
“Australian Company Launches retimer 3 – A Smart Sleep Wearable” •
“Australian Company Launches retimer 3 – A Smart Sleep Wearable.” •
Travelling across several time zones can leave your sleep schedule out of sync with the local time. You may find yourself awake when you should be sleeping or tired during the middle of the day. Timed light exposure can help your circadian system adjust to a new schedule. retimer 3 provides a portable way to incorporate light therapy into your travel routine.
Start planning your sleep and light exposure around your destination’s time zone.
Use your personalised light schedule while adjusting to the new local time.
Continue following your schedule as your body adapts to the new day-night cycle.
A consistent sleep schedule starts with a consistent body clock.
Light exposure is an important environmental cue for your circadian rhythm. Getting the right amount of light at the right time can help your body understand when it should be awake and when it should prepare for sleep.
retimer 3 is designed to make that light exposure easier to incorporate into your daily routine.
retimer 3 provides a non-drug, wearable approach to light therapy that can be used as part of a broader healthy sleep routine.
Light and circadian rhythms have been studied extensively, particularly in relation to sleep timing, jet lag and shift-work schedules.
retimer has been developed through more than 25 years of research and product development, with the company reporting more than 20 clinical research studies involving its products. The retimer approach focuses on delivering targeted blue-green light at a controlled wavelength and using the timing of light exposure to influence the body’s circadian system.
Your retimer 3 package includes:
retimer 3 light therapy device
The wearable light therapy device.
Protective travel case
Keep your device protected when you’re travelling or storing it.
USB-C charging cable
For convenient charging.
Three nose pieces
Choose the fit that feels most comfortable.
User manual
Guidance for getting started with your device.
1-year technical warranty
Additional support for your device.
| Technical Specifications | |
| Size | 6.9 x 6.5 x 1.0 inches or 174 x 166 x 25 mm |
|---|---|
| Weight | 1.27 ounces or 36 grams (product only) |
| Lightning Technology | 4 Light-emitting diodes (LEDs), 0.1 watts, diffuser cover technology |
| Light Spectrum Intensity | Blue-green 500 nm dominant wavelength 506 Lux lm/m² and 230 µW/cm² |
| Useful Life | >10,000 hours |
| Battery Life | Up to 5.6 hours |
| Battery | Integrated rechargeable Li-ion polymer battery, 3.7V, 160mAh |
| Technical Warranty | 1 Year |
| Manual | English / Japanese |
| Accessories | USB cable for charging battery via PC or USB compatible 5V wall socket, travel case |
Decide whether you're trying to adjust your sleep schedule, manage jet lag, adapt to shift work or support a more consistent daily rhythm.
Use the retimer app to help determine when light therapy should fit into your routine.
Place the device comfortably on your face and adjust the nose pieces if necessary.
Because retimer 3 is wearable, you can use it while carrying out many normal activities.
Circadian rhythm changes are about timing and consistency rather than a single session.
| Feature | retimer 3 | Traditional Light Box |
|---|---|---|
| Wearable | ✓ | Usually no |
| Hands-free | ✓ | Limited |
| Portable | ✓ | Depends on model |
| Designed for targeted delivery | ✓ | Depends on design |
| Use while travelling | ✓ | Less convenient |
| Prescription glasses compatible | ✓ | N/A |
| Personalised app | ✓ | Usually no |
| Apple Health / Health Connect | ✓ | Usually no |
A light box can be useful, but it isn’t always convenient for modern schedules.
retimer 3 brings light therapy into a wearable format, making it easier to incorporate into mornings, travel days, work routines and other everyday activities.
retimer 3 is a wearable light therapy device designed to provide controlled blue-green light to support circadian rhythm and sleep-wake timing.
Light entering the eyes provides a signal to the brain’s circadian system. Depending on the timing, light exposure can help shift the body’s internal clock earlier or later.
retimer 3 can be incorporated into a timed light therapy routine designed to help your body adjust to a new time zone.
Yes. retimer 3 is designed to be incorporated into routines for changing or irregular schedules, including shift work. The timing of light exposure should be matched to your individual schedule.
Yes. retimer 3 is designed to sit below the eyes and can be worn with prescription glasses.
retimer 3 weighs approximately 36 grams, making it lightweight enough for everyday use.
retimer 3 uses blue-green light with a dominant wavelength of approximately 500–504 nm.
The battery provides up to approximately 5.6 hours of use, depending on usage conditions.
The device can be charged using the included USB cable with a compatible USB power source.
Yes. The retimer app is available for iOS and Android and supports Apple Health and Health Connect integration.
Light therapy is generally well tolerated by many adults, but it isn’t suitable for everyone. People with certain eye conditions, photosensitivity or other relevant medical conditions should speak with a healthcare professional before use.
The current retimer guidance indicates sessions may range from around 20–30 minutes initially, with longer sessions sometimes used for goals such as jet lag or shift-work schedule adjustment. Follow the guidance provided for your specific situation.
Your schedule isn’t always perfect. Flights, work, early mornings and late nights can all move your routine away from your natural rhythm.
retimer 3 makes light therapy portable, simple and easier to fit into everyday life.
Support your circadian rhythm. Adjust to changing schedules. Make light therapy part of your routine.
Use Code: WINTERRESET
