young adult male using Red Light Therapy tower, close up

Red Light Therapy

Light Work Pays Off

Clearlight® Red Light Therapy combines powerful red light (650nm) and near infrared (850nm) wavelengths to offer you the best therapy available today. Clearlight Red Light Therapy provides the most proven and effective therapeutic wavelengths to the entire body reducing oxidative stress and stimulating the production of ATP (Adenosine Triphosphate).

This process, known as Photobiomodulation, has been extensively researched for many years and adds measurable energy to the mitochondria of your cells. Our Red Light Therapy Towers can be used during your sauna session or as a stand-alone therapy outside your sauna.

young adult male using Red Light Therapy tower

What is Red Light Therapy?

Red Light Therapy, also known as photobiomodulation and low-level light therapy, uses red and near-infrared low-level wavelengths of light for a variety of health and wellness benefits. Red light is considered “low level” because it works at an energy density that’s low compared to other forms of laser therapies. Unlike the ultraviolet light from the sun or tanning beds, red light therapy does not use UV light and does not tan or burn the skin. In the early 1990s, Red Light Therapy was used by NASA scientists to help grow plants in space. They found that the intense light from red LEDs promoted the growth and photosynthesis of plant cells, and later research explored the same wavelengths for wound healing in astronauts.

Red light was then studied for its ability to increase energy inside human cells. The human body needs to make ATP (Adenosine Triphosphate) cellular energy to function and survive. This occurs naturally when our bodies are exposed to natural sunlight. Red and near infrared wavelengths of natural light stimulate the mitochondria in our cells. The mitochondria turn the light into usable energy for our bodies through the process of cellular respiration.

Once available only in clinics, dermatology offices, and spas, red light therapy is now widely used at home with devices such as towers, panels, masks, and handheld wands. Clearlight Red Light Therapy Towers bring clinical-strength output to your home, where they can be used on their own or inside your Clearlight infrared sauna.

Woman wearing a white robe and sitting in an infrared sauna beside a Clearlight Red Light CORE Tower.

Benefits of Red Light Therapy

Light therapy has been tested across hundreds of peer-reviewed clinical trials with positive results. The benefits of Red Light Therapy include:

  • Reduction of Chronic and Acute Pain
  • Skin Rejuvenation (boost collagen & elastin production)
  • Tissue Regeneration
  • Wound Healing
  • Muscle Recovery
  • Muscle Conditioning
  • Testosterone Boost
  • Reduced Inflammation

Research into red light therapy continues to grow, with studies exploring its effects on skin texture and fine lines, joint discomfort, post-workout soreness, hair growth and sleep. Many people start with one goal, such as skin health or recovery, and discover additional benefits with consistent use.

Clearlight Red Light Therapy Tower with an animated diagram alternating between focused 7°–30° and wide 40°–60° beams to demonstrate Variable Optics technology.

How Light Therapy Works

Red light therapy works through a process called photobiomodulation. When red (650nm) and near infrared (850nm) light reaches your skin, it is absorbed by light-sensitive molecules inside the mitochondria of your cells, most notably an enzyme called cytochrome c oxidase. That absorption gives the mitochondria a measurable boost in producing ATP, the energy currency every cell runs on.

With more available energy, cells repair and regenerate more efficiently. Research also shows that red and near infrared light trigger the release of nitric oxide, which widens blood vessels and improves local circulation, and that it helps reduce oxidative stress and inflammatory signaling in the treated tissue. Together, these effects are what drive the benefits people associate with red light therapy: firmer, brighter skin, faster muscle recovery, less joint discomfort and better overall cellular health.

The two wavelengths do different jobs. Red light at 650nm is absorbed mostly in the skin, roughly the first 5 millimeters, which is why it is used for collagen production, skin tone and wound healing. Near infrared light at 850nm is invisible to the eye and travels deeper into muscle, joints and connective tissue, which is why it is used for recovery, pain and inflammation. Clearlight Towers deliver both at the same time, so a single session works on the surface and beneath it.

Dose matters. The benefit you receive depends on the device’s irradiance (how much light energy reaches your skin, measured in mW/cm²), your distance from the light and how long you stay in front of it. Clearlight Towers produce up to 110 mW/cm², which means you can reach an effective dose in a 10 to 20 minute session rather than the 30 minutes or more that lower-powered masks and panels often require.

Red Light Therapy at Home

You do not need a clinic appointment to get results from red light therapy. With a well-built device and a consistent routine, at-home red light therapy delivers the same wavelengths dermatologists and sports recovery centers use, on your schedule and without a per-visit fee. Here is how to get the most from every session with your Clearlight Tower:

  • Start with clean skin. Remove makeup, lotions and sunscreen from the treatment area so the light is not blocked before it reaches your skin.
  • Set your distance. Stand or sit 6 to 12 inches from the tower. Clearlight’s Variable Optics™ are calibrated to deliver 55 to 110 mW/cm² at 4 to 12 inches; closer is more targeted, farther gives wider coverage.
  • Time your session. 10 to 20 minutes when standing in front of the tower; 20 to 30 minutes when seated on the sauna bench with the CORE Tower mounted on the door. Newer users should start at 10 minutes and build up.
  • Be consistent. Aim for 3 to 5 sessions per week. Most people notice changes in skin tone and recovery within 4 to 6 weeks, with cumulative benefits the longer you keep going.
  • Protect your eyes. Wear the included eyewear and avoid looking directly into the LEDs.
  • Stack your therapies. Red light therapy pairs naturally with your infrared sauna. Run the tower during your sauna session or use it before your sauna to warm up targeted areas.

 

Do’s and Don’ts

Do Don’t
Follow the distance and time guidance above and keep it consistent from session to session so your dose is reliable. Don’t assume longer sessions or multiple sessions a day speed up results.
Treat bare, clean skin and let the light reach the area directly. Don’t treat through clothing, thick lotions or sunscreen.
Wear the provided eye protection, especially for facial sessions. Don’t stare into the LEDs.
Check with your healthcare provider if you are pregnant, photosensitive or taking light-sensitizing medication. Don’t use red light therapy to replace prescribed treatment for a medical condition.
Keep the tower’s lens surface clean and store it per the care instructions. Don’t use the device with damaged cords or in wet conditions outside of its rated environment.

Not sure which at-home format is right for you? Masks and small handheld devices are convenient for spot treatments but deliver a fraction of the irradiance and coverage of a tower, which is why a single Clearlight Tower can cover your face, your back or your full body in one session. Read our comparison of red light masks vs. red light towers, or learn how to combine red light therapy with your infrared sauna.

Clearlight Red Light CORE Tower illuminated with rows of bright red and white LED bulbs, shown horizontally against a light gray background.

Variable Optics™ Red Light Therapy

Clearlight Red Light Therapy is the only red light therapy unit available using Variable Optics™. Most other light therapy units have a single optical output at 30 degrees. This limits the amount of light absorbed by the human body.

The light receptors in our skin absorb the Red and Near Infrared light. With a single optic there is a single acceptance angle. With our Variable Optics technology we use a mix of 7 to 60 degree optics creating multiple cross acceptance angles of the light waves. This allows the light to travel better in to our cells and offer more benefit.

Our Variable Optics technology allows you to maximize the benefits of light therapy in every session. This technology is only available with Clearlight Red Light Therapy.

How Red Light and Near Infrared Therapy Work

For nearly 30 years, Clearlight has pioneered infrared wellness for the home. In 2019, we became the first infrared sauna company to bring red light therapy directly into the sauna environment, making it easy to experience both therapies together.

Effective red light therapy requires attention to wavelengths, dose, optics, distance, and placement. That’s why we engineered a purpose-built device for the sauna. Our CORE Tower is designed for the sauna’s heated environment and uses patented Variable Optics™ technology to combine concentrated, targeted light with broader coverage than most of the red light products currently on the market.

Every one of Clearlight Red Light Therapy Towers features 70 red LEDs in the 650 nm range and 70 near-infrared LEDs in the 850 nm range. With an output of up to 110 mW/cm², our Red Light Therapy Towers are our most powerful and effective at-home red light therapy devices. Their flicker-free LED bulbs have an intensity rating of 100 mW/cm², helping deliver the optimal wavelengths for effective sessions.

In simple terms, Clearlight Red Light Therapy uses targeted wavelengths of light to support cellular energy, promote cell regeneration and help you pursue your health and wellness goals. Whether you want full-body red light therapy for your home or you want to add red light therapy to your infrared sauna sessions, Clearlight makes it easy to incorporate this technology into your wellness routine. Experience the maximum benefit in the shortest session time – because we understand that your time is precious.

Clearlight Red Light Therapy devices can be used at home while seated in the sauna or while standing in front of the tower, which concentrates its healing power on targeted areas of the body.

The PERSONAL Tower is built for targeting areas on your body while sitting, lounging and relaxing. The PERSONAL Tower is as powerful as the CORE Tower but very direct and targeted.

Download Specs
Woman using the Clearlight PERSONAL Red Light Therapy Tower while admiring the red light on her skin in a bathroom mirror
The CORE Tower is 38″ tall and can be attached to our stand, or attached inside your Clearlight Infrared Sauna. This device is designed for the center or CORE of your body for overall wellness and healing.

Download Specs
Man Lifting Weights Next to Red Light Tower
Standing tall at 59″, the FULL BODY Tower includes a fixed wall mount for easy setup or can be mounted on our optional stand. Experience quicker muscle recovery, reduced post-workout downtime, and reduced inflammation as it aids healing and eliminates toxins. Feel the benefits from head to toe, boosting your energy and vitality for a better day, every day.

Download Specs
posing by red light tower

The Clearlight Red Light Therapy Collection

Clearlight Red Light Therapy | The PERSONAL Tower

The PERSONAL Tower is 13.5″ tall and can be placed on a table top or mounted on the included stand. The PERSONAL Tower is designed for spot treatment use on your face, hands, feet, arms or any smaller area of your body.

Clearlight Red Light Therapy | The CORE Tower

The CORE Tower is 38″ long and can be attached to the door of your sauna or used outside of your Clearlight Sauna on our stand (not included). The CORE Tower is designed to treat a large portion of your body in a single session. It is also the only red light therapy unit designed for use inside your infrared sauna.

Clearlight Red Light Therapy | The FULL BODY Tower

Clearlight® Red Light Therapy in full-body effect. Standing tall at 59″, the FULL BODY Tower bathes your body in revitalizing red light and includes a fixed wall mount for easy setup or can be mounted on our Individual Tower Stand. Our Variable Optics™ Technology ensures total coverage.

Red Light Therapy Mounting Options

Your Red Light Therapy Tower can be set up and configured with several different mounting options when used outside of a Clearlight infrared sauna. View the compatibility chart below and talk to your Sauna Specialist to learn more about which setup is right for you.

Compatibility Chart

Retreat heaters for red light therapy

Find Out How You Can Use Light Therapy at Home or in Your Business

We offer red light and near-infrared therapy devices for home or business use as a complement to your existing Clearlight Sauna or as a standalone unit.

Call us today at 800.798.1779 to learn more from our Light Therapy specialists.

Contraindications of Red Light Therapy

Red light therapy is considered safe, non-invasive and pain-free when used as directed. It does not use ultraviolet light, produces very little heat and has no known serious side effects with short-term, properly dosed use. As with any wellness device, there are a few things to keep in mind:

  • Eye comfort. The LEDs are bright. Avoid staring directly into the light, and wear the protective eyewear that comes with your Clearlight Tower, especially during close-range or facial sessions. Eye strain and mild headaches are the most commonly reported side effects and are almost always linked to unprotected eyes.
  • Overuse. More is not better. Follow the manual’s instructions for session length, distance, and frequency.
  • Photosensitivity. If you take medications or use topical products that increase light sensitivity (certain antibiotics, retinoids, isotretinoin, some acne and psoriasis treatments), talk with your healthcare provider before starting.
  • Medical conditions. Consult your doctor first if you are pregnant, have a history of skin cancer, epilepsy, a light-sensitive condition, or have been diagnosed with bipolar disorder, as rare cases of mood changes have been reported.
  • When to stop. Discontinue use and speak with a healthcare professional if you notice persistent redness, rash, pain or vision changes.

Red light therapy is a wellness tool, not a substitute for medical care. If you are using it to support a diagnosed condition, keep your healthcare provider informed.

Red Light Therapy Frequently Asked Question

From safety and session length to what sets a Clearlight Tower apart, here are the questions people ask most about red light therapy at home.

Yes. Red light therapy is non-invasive, does not use ultraviolet light and has no known serious side effects when used as directed. The most common issues, eye strain and temporary skin redness, come from staring into the LEDs or overusing the device. Wear the provided eyewear, follow the recommended distance and session times, and check with your healthcare provider if you are pregnant, photosensitive or taking light-sensitizing medication.

Three to five sessions per week is the sweet spot for most people. Sessions run 10 to 20 minutes when standing in front of the tower, or 20 to 30 minutes when seated in your sauna with the CORE Tower on the door. Consistency matters more than intensity.

Yes, and the two work well together. The Clearlight CORE Tower is the only red light therapy unit designed to mount inside an infrared sauna. Infrared heat warms tissue and increases circulation while red and near infrared light work at the cellular level. Run the tower during your sauna session, or use it before your sauna if you prefer to treat a specific area first.

Full-body and torso sessions expose the abdomen to red and near infrared light, which can support skin firmness, help soften the appearance of stretch marks and ease muscle soreness after core workouts. Some early research has explored red light therapy for fat reduction and gut health, but the evidence is still limited, so treat those as potential rather than proven benefits.

Red and near infrared light can increase circulation to the scalp and energize hair follicles, and low-level light therapy has been studied for androgenic (pattern) hair loss. For scalp sessions, use the PERSONAL Tower several times per week and plan on at least three months of consistent use before judging results.

Clinic and spa sessions typically cost anywhere from $25 to $100 or more per visit, and results require ongoing treatment several times a week. Owning a device means unlimited sessions for a one-time cost, no travel and the consistency that drives results, so most regular users find a home tower pays for itself within months.

LED masks use light-emitting diodes to distribute light across the face. Laser masks use laser diodes that produce a more focused, directional beam of light.

Laser technology is generally more complex and often comes with a higher price tag. However, both technologies are used for skincare, and a higher price doesn't necessarily mean better results.

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A Clearlight Sauna in an enclosed room