What Are Red Light Therapy Saunas?
Red light therapy saunas combine two increasingly popular wellness technologies—sauna heat and red light therapy—into one recovery experience. Depending on the system, these saunas may pair traditional or infrared heat with panels that emit specific wavelengths of red and near-infrared light.
While both technologies involve forms of light and energy, red light therapy and infrared sauna therapy aren't the same thing. Understanding the difference can help you determine what a red light therapy sauna actually does and whether it makes sense for your wellness routine.
How Does Red Light Therapy Work?
Red light therapy, sometimes called photobiomodulation, exposes the body to specific wavelengths of red and near-infrared light.
Unlike ultraviolet (UV) light from the sun, therapeutic red and near-infrared light doesn't work by tanning or intentionally damaging the skin. Instead, researchers are studying how these wavelengths interact with cells and may influence biological processes related to cellular energy production, inflammation, tissue repair, and recovery.
Red light therapy is generally delivered through LED panels positioned relatively close to the body. The wavelength, intensity, distance from the lights, and duration of exposure can all affect how much light reaches the body.
How Does the Sauna Fit In?
The sauna portion provides heat exposure, while the red light system provides targeted light exposure.
In an infrared sauna, infrared heaters warm the body using radiant heat. In other sauna designs, conventional heaters may be responsible for raising the temperature. Red LEDs can then be incorporated into the sauna cabin to provide red or near-infrared light during the same session.
This means you're essentially combining two different wellness experiences:
Sauna therapy → heat exposure
Red light therapy → targeted light exposure
Having both technologies in one unit can make it easier to incorporate them into a regular at-home recovery routine.
Potential Benefits of Red Light Therapy
Red and near-infrared light therapy have been researched for several potential applications. Depending on the wavelength and treatment protocol, studies have investigated photobiomodulation for areas such as:
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Supporting muscle recovery
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Temporary relief from certain types of soreness
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Supporting tissue repair
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Skin health and appearance
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Exercise recovery and performance
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Managing certain forms of inflammation
Research into photobiomodulation continues to develop, and results can vary significantly depending on the equipment and treatment protocol being used. Red light therapy should therefore be viewed as a wellness and recovery tool rather than a cure-all treatment.
Red Light Sauna vs. Infrared Sauna: What's the Difference?
It's easy to confuse the two because both involve wavelengths within or near the infrared portion of the electromagnetic spectrum.
An infrared sauna primarily uses infrared radiation to generate heat and raise your body's temperature.
A red light therapy system uses specific red and/or near-infrared wavelengths at controlled intensities with the goal of producing photobiological effects.
Some premium sauna systems incorporate both technologies, giving users heat exposure and dedicated red light therapy within the same cabin.
However, simply seeing red-colored lights inside a sauna doesn't necessarily mean you're receiving therapeutic red light exposure. A true red light therapy system should specify important characteristics such as the wavelengths produced and the light intensity or irradiance.
Why Are Red Light Therapy Saunas Becoming Popular?
Convenience is one of their biggest advantages.
Instead of purchasing a sauna and a separate full-body red light therapy panel, a combination system can provide both experiences in one dedicated wellness space. This can be especially appealing for people building an at-home recovery setup.
After workouts or long days, a session can provide an opportunity to slow down, enjoy heat exposure, and incorporate red light therapy into the same routine.
Are Red Light Therapy Saunas Safe?
Red light therapy is generally considered non-invasive when appropriate equipment and exposure protocols are used. Sauna use also has a long history, but heat exposure places additional demands on the body's temperature-regulation and cardiovascular systems.
Hydration and appropriate session lengths are important. People with certain medical conditions, people taking medications that affect heat regulation or light sensitivity, and those who are pregnant should speak with an appropriate healthcare professional before incorporating sauna or red light therapy into their routine.
Protective eyewear may also be recommended for certain red light devices, so users should always follow the manufacturer's instructions.
Bringing Light and Heat Into Your Recovery Routine
Red light therapy saunas represent an interesting evolution in at-home wellness technology by bringing heat, relaxation, and photobiomodulation into one experience.
They're not a shortcut to perfect health, and the quality of the technology matters. But for someone interested in building a comprehensive home recovery environment, combining sauna heat with properly designed red and near-infrared light therapy can provide a convenient way to incorporate multiple recovery practices into one routine.
The key is choosing quality equipment, understanding the technology you're purchasing, and using it consistently and responsibly as part of a broader approach to recovery, movement, sleep, and overall wellness.
