Red Light Therapy for Fibromyalgia: Trials, Doses and a Home Plan
Red light therapy for fibromyalgia has promising early evidence. In placebo-controlled trials, mostly of clinic lasers, red and near-infrared light improved fatigue, stiffness, tender points and pain. Exercise comes first in official guidance, so light belongs alongside an exercise routine. Below: the reviews, the whole-body trial, the tender-point laser trials, the separate green light research, and a practical plan for a half-body panel.
Key takeaways
- A 2019 meta-analysis of 9 placebo-controlled trials with 325 patients found low-level laser improved pain, fatigue, stiffness and tender points in fibromyalgia. Pain Physician, 2019
- A 2025 review of 17 studies with 857 participants concluded that light therapy "appears to be an effective therapeutic option for Fibromyalgia syndrome". Applied Sciences, 2025
- In a triple-blinded trial of a whole-body 660 nm and 850 nm LED bed, pain scores were 3 points lower than placebo after 4 weeks of 20-minute sessions, 3 times a week. Pain and Therapy, 2022
- Exercise is the only strong recommendation in the European (EULAR) fibromyalgia guidelines, agreed by 100% of the panel. Ann Rheum Dis, 2017
- The green light fibromyalgia research is a different method: 525 nm light viewed with the eyes for 1 to 2 hours a day, not red light on the skin. Pain Medicine, 2021
Does red light therapy help fibromyalgia?
The research is promising. Reviews of placebo-controlled trials report improvements in daily impact, fatigue, stiffness, tender points and pain, although the trials are small and most used clinic lasers.
The 2019 meta-analysis pooled 9 trials of low-level laser against a placebo laser. It found improvements in the Fibromyalgia Impact Questionnaire (FIQ), a score of how much the condition affects daily life, and in pain, tender points, fatigue and stiffness. The authors concluded that low-level laser is "an effective, safe, and well-tolerated treatment for fibromyalgia". Pain Physician, 2019
The newest overview, from 2025, covered 17 studies of lasers, LED clusters and whole-body beds; 843 of the 857 participants were women. The authors rated the evidence as moderate to high for pain, quality of life, fatigue and tender points, and whole-body application looked strongest. Applied Sciences, 2025 For how the light acts on cells, see our article on red light therapy for pain and inflammation.
Which fibromyalgia symptoms improve most: fatigue, stiffness or pain?
Fatigue, stiffness and overall impact scores have the most consistent support in pooled data. Pain results are more varied between reviews, though individual trials did report lower pain.
A 2025 umbrella review re-analysed meta-analyses of light therapy across many conditions. For fibromyalgia, FIQ, fatigue and stiffness were the significant results, with fatigue at an effect size of 1.25. Systematic Reviews, 2025 The 2019 meta-analysis put fatigue at 1.4 and stiffness at 0.92. Pain Physician, 2019
Sleep improved in an uncontrolled whole-body study and in a 160-woman laser and LED trial, both covered below. Our article on red light therapy for sleep covers timing: finish about 2 hours before bed and use red and near-infrared only.
What did the placebo-controlled whole-body trial find?
Pain scores fell 3 points more than placebo by the end of 4 weeks, and 4 points more two weeks later. It is the closest evidence to LED panels, because it used LEDs at 660 nm and 850 nm.
The trial in Málaga was triple-blinded and enrolled 42 to 44 women aged 34 to 64. Each lay in a whole-body bed for 20 minutes, 3 times a week for 4 weeks. The light was continuous at 28 mW/cm², about 25 J/cm² per session. The placebo group used the same bed in placebo mode, and its heating elements ran in both groups, so warmth alone does not explain the difference. Pain and Therapy, 2022 The trial was funded by the bed maker's founder, and two authors are linked to the manufacturer.
At the 6-month follow-up, pain was 2 points lower than placebo. Quality of life and leisure activity were better at 3 and 6 months. Frontiers in Neuroscience, 2024
A UK NHS pain clinic tested a similar whole-body LED bed without a comparison group. Its 19 patients built up from 6 to 12 to 20 minutes, 3 times a week for 6 weeks. The FIQR score fell from 79.7 to 55.3, pain from 7.08 to 3.93 out of 10, and the sleep score from 17.35 to 11.53. By week 24 the FIQR was 65.68, still better than at the start. Behavioral Sciences, 2023 With no placebo group, these figures show feasibility, not proof. For how beds compare with panels, see half-body vs full-body red light panels.
What did laser trials on tender points in the neck, shoulders and back show?
Trials that aimed lasers or LED clusters at tender points found less pain, fewer tender points or less stiffness than placebo. Most used near-infrared at 904 to 905 nm, often with red LEDs.
These trials are the main evidence base for infrared light therapy for fibromyalgia, and they show where on the body the light was aimed.
| Trial | People | Light | Schedule | Result |
|---|---|---|---|---|
| Gür 2002 | 40 women | 904 nm laser, 3 minutes per tender point | Weekdays for 2 weeks | Better than placebo for pain, muscle spasm, morning stiffness and tender point count |
| Panton 2013 | 38 women | 810 and 980 nm high-power laser on 7 tender points across the neck, shoulders and back | 7 minutes, twice a week, 4 weeks | FIQ pain item 7.1 to 6.2, against 5.8 to 6.1 with sham; upper-body function 71 to 78 |
| Ribeiro 2023 | 90 women | 905 nm laser with 850 and 630 nm LEDs and a magnetic field, 120 seconds per site | 3 times a week, 3 weeks | Fewer tender points than placebo at the end and at 4 weeks; tender points 15.29 to 7.29 |
| da Silva 2018 | 160 women | 905 nm laser with 640 and 875 nm LEDs, 11 sites | 10 weeks | Pain threshold, fatigue, sleep difficulty and quality of life improved; more with exercise added |
Sources: Lasers Med Sci, 2002; J Altern Complement Med, 2013; Eur J Phys Rehabil Med, 2023; Lasers Med Sci, 2018. Wavelengths and per-site times for Gür, Panton and Ribeiro are as reported by Applied Sciences, 2025.
Should you add red light to an exercise routine for fibromyalgia?
Yes, as an addition, never a replacement. Exercise is the only strong recommendation in the European guidelines, and light has done best in trials when combined with exercise.
The EULAR guidelines reviewed 107 reviews and rated exercise "strong for" with 100% agreement. They state that "Initial management should involve patient education and focus on non-pharmacological therapies." At the time, they judged the evidence on light and heat devices too limited to allow a recommendation. Ann Rheum Dis, 2017
On combining the two, the 160-woman trial compared light, exercise and both together over 10 weeks. Each worked on its own, and "a more substantial effect was noticed for the combined therapy". Lasers Med Sci, 2018 The 2019 meta-analysis found that combined laser and LED plus exercise did better than exercise alone, while laser added to a standard programme gave no extra advantage. Pain Physician, 2019
- Pick something sustainable: the NHS advises exercise you "enjoy and can continue doing long-term". NHS
- Start slowly: Mayo Clinic warns that "At first, exercise may make your pain worse", and suggests water-based exercise. Mayo Clinic
Is green light therapy for fibromyalgia the same as red light therapy?
No. The green light research used 525 nm light viewed with the eyes in a dark room, while red light therapy shines red and near-infrared light on the skin.
In the University of Arizona study, 21 patients spent 10 weeks with white light and then 10 weeks with green LED strips, 1 to 2 hours a day. Average pain fell from 8.38 to 4.86 with green light and barely changed with white. The study was not randomised and had no placebo, and the authors said the results "merit a larger clinical trial". Pain Medicine, 2021 The university contrasts it with red and infrared light on the skin. University of Arizona
A red light panel is not a green light device. Never look into it: keep the goggles on, as explained in is red light therapy safe for eyes.
How do you use a half-body panel for fibromyalgia pain in the neck, shoulders, lower back and knees?
Treat one region per session and rotate through the body across the week. Use 660 nm and 850 nm, the wavelengths of the whole-body trials, and start with short sessions.
A bed covers the whole body at once; a half-body panel covers one area, so plan ahead:
- Neck and shoulders: Panton's 7 tender points spanned the neck, shoulders and back. Sit with your back to the panel, at about 12 inches.
- Lower back and hips: a broad area, so 12 inches.
- Knees: a joint, so 6 inches is possible, with the dose controls below.
- Rotation: one area per session, spread over the week. Leave at least 6 hours between 30-minute sessions on the same day.
| Whole-body trial (Málaga) | Whole-body study (UK) | Home panel starting point | |
|---|---|---|---|
| Wavelengths | 660 nm and 850 nm | 660 nm and 850 nm | 660 nm and 850 nm up; 480 nm and 590 nm at 0 |
| Mode | Continuous | Continuous | Continuous, no pulsing |
| Dose or minutes | 20 minutes, about 25 J/cm² | 6, then 12, then 20 minutes | Start at 5 minutes, build towards 10 to 15 per area |
| Sessions per week | 3 | 3 | 2 to 3 per area |
| Course | 4 weeks | 6 weeks | Review at 4 to 6 weeks |
Both whole-body studies used continuous light. The panel offers pulsing from 1 to 10,000 Hz, but continuous mode matches the trials; see pulsed vs continuous red light therapy.
How do you match the trial dose with a home panel?
Step back, dim and keep sessions short. A panel close to the skin delivers light faster than the beds in the trials, so the studied dose is reached in less time.
The beds delivered 28 mW/cm². Our panel's combined output at 6 inches is at least 156.7 mW/cm² with every channel at full brightness, so at that distance it reaches the bed's 25 J/cm² in roughly 3 minutes. Low doses stimulate and high doses inhibit, so more is not better. To stay near the studied range:
- Step back: at 12 inches you receive well under half the 6-inch output.
- Dim: each wavelength can be set from 1 to 100%. Turn off the channels the trials did not use.
- Set the timer: 1 to 30 minutes; the maximum is a limit, not a target.
- Build up gradually: the UK study raised session length from 6 to 12 to 20 minutes, a useful model if you are sensitive.
Our guide on how often to use red light therapy gives 2 to 4 sessions a week for the neck and back, which fits the trial schedules.
Should you use red light therapy on a fibromyalgia flare day?
Keep your usual session or shorten it. Do not add extra or longer sessions on a bad day.
The trials ran fixed schedules of 2 to 5 sessions a week and did not change them around flares. Mayo Clinic's pacing advice fits: "Keep your activity on an even level." Mayo Clinic Cleveland Clinic lists heat as a supportive option during flares, and also lists "Weather or temperature changes" among flare triggers. Cleveland Clinic
- Shorter: 5 minutes on one area, the panel's default when no timer is set.
- Further away: 12 inches, with the near-infrared channels dimmed.
- Warm, never hot: the surface stays at or below 40°C. If skin feels hot, stop.
- Comfortable position: the panel hangs on a door or wall or stands, so you can sit or lie down.
Is red light therapy safe with fibromyalgia medication or pain patches?
Do not use the panel on photosensitising medicine, and ask your prescriber first if you wear a medicated patch. Never change or stop a prescription because you have started light therapy.
In the UK whole-body study, two patients had to remove fentanyl patches for each session. Behavioral Sciences, 2023 Do not remove a patch yourself: ask the prescriber before using light over or near it.
Our precautions also advise against use in pregnancy, with epilepsy, with a thyroid condition or thyroid medication, and over broken skin. If you have lupus, ask a doctor first.
How long does red light therapy take to help fibromyalgia, and how should you track it?
Allow 4 to 6 weeks before judging. In the whole-body trial, pain was not yet different from placebo after 6 sessions but was clearly lower after 12.
That timing comes from the Málaga trial. Pain and Therapy, 2022 Fibromyalgia varies from day to day, so keep a log: pain and fatigue out of 10, sleep quality, minutes of morning stiffness, and the length of your daily walk. Record one week before you start, then weekly. If the trend is helpful at 4 to 6 weeks, maintain at 2 to 3 sessions a week. In the UK study, FIQR rose again between weeks 6 and 24 after sessions ended.
How do Kivorla devices fit in?
The 9-Spectrum Red Light Therapy Panel has the two wavelengths used in the whole-body fibromyalgia trials, 660 nm and 850 nm. It covers one body area at a time, so it suits a rotating routine.
Its nine channels are 480, 590, 630, 660, 670, 810, 830, 850 and 1060 nm, each dimmable from 1 to 100%. At 6 inches, near-infrared output is at least 1,200 W/m² and red at least 150 W/m². The timer runs from 1 to 30 minutes, and you set everything with the controller. Goggles are included. Our precautions advise against using the panel on Fitzpatrick skin types V and VI. The 4-Wavelength Red Light Therapy Mask covers the face only, so it is not suited to body pain.
Standard shipping to the US, UK and Germany is free. Read the precautions before ordering. Under our return and refund policy, returns are accepted within 30 days: an unopened device with its seals intact is refunded less a 10% restocking fee, and an opened device that is undamaged and complete is refunded less 20%.
Kivorla devices are general wellness devices, not medical devices, and are not intended to treat fibromyalgia. Speak to your doctor before starting, keep up the exercise plan your care team recommends, and never change your medication without your prescriber.