Light Dose Database

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This is the EMF Channel database of light therapy study doses. After getting the results, click to view more study details. Only successful studies are included. 99% of the studies here are on humans, not animals. This database is a work in progress. Many thanks to Vlad for his PBM database. When the data here references his work, the detail page includes a link to the PBM spreadsheet.

Red light therapy brain dose

Significant Gulf War Illness (Chronic Multisymptom Illness) Improvements after 12 Weeks of Vielight Neuro Alpha Treatment

Journal:

Improvements in Gulf War Illness Symptoms After Near-Infrared
Transcranial and Intranasal Photobiomodulation: Two Case
Reports

Wavelength:
810
Irradiance:
100, 75 and 25 mW/cm^2
Condition:
Anxiety, Cognition, Depression, Memory, Pain, Headache, PTSD
Outcome:

Researchers tested the effects of the Vielight Neuro Alpha photobiomodulation device on Gulf War Illness (GWI) symptoms. GWI symptoms include persistent headaches, cognitive difficulties, joint pain, musculoskeletal pain, fatigue, gastrointestinal problems. Because the pattern can present in non-Gulf War veterans, the phenomenon is also called Chronic Multisymptom Illness (CMI). A CMI diagnosis is 6 months of symptoms in at least two of these categories: fatigue, pain, and cognitive-mood. A Kansas GWI is moderately severe or multiple chronic symptoms in at least three of these categories: fatigue/sleep problems, pain, neurological/
cognitive/mood problems, respiratory problems, gastrointestinal problems, and skin problems.

Subjects took self-assessment questionnaires and cognitive tests. They tested before treatment and at the 12-week mark. Gulf War Veteran 1 (GWV1) presented as a Kansas GI. Gulf War Veteran 2 (GWV2) presented as Kansas GWI. Subjects used the Vielight Neuro Alpha device daily for 12 weeks. The device delivers:

  • 810 nm 100 mW/cm^2 pulsed at 10 Hz to 3 posterior transcranial targets
  • 810 nm 75 mW/cm^2 pulsed at 10 Hz to an anterior target
  • 810 nm 25 mW/cm^2 pulsed at 10 Hz to an intranasal passage

At 12 weeks both subjects improved on multiple scores. GWV1 no longer qualified as Kansas GWI. He was re-categorized as mild-moderate CMI. GWV1 showed improvements in mood-cognitive, pain, sleep and fatique categories.

GWV2 was re-categorized from severe CMI to mild-moderate CMI. He showed improvements in fatique, pain and mood-cognitive scores.

Twin leg press exercise

Infrared Reduced Muscle Soreness, Decreases Recovery Time

Journal:

Effects of Light-Emitting Diode Therapy on Muscle Hypertrophy, Gene Expression, Performance, Damage, and Delayed-Onset Muscle Soreness: Case-control Study with a Pair of Identical Twins.

Wavelength:
850
Irradiance:
0.2 mW/cm^2
Condition:
Muscle Soreness, Muscle Strength, Pain
Outcome:

Reduce muscle damage, muscle pain (soreness), muscle atrophy, muscle recovery time; increase muscle mass, and athletic performance treating the quadriceps femoris muscles with 850 nm LED light with a total of 75 J.

Red light therapy pain decrease dose

Breast Augmentation Post Operative Pain Reduction Red Light Dose

Journal:

Low-Level Laser Therapy Effectiveness for Reducing Pain after Breast Augmentation

Wavelength:
635
Irradiance:
14
Condition:
Pain
Outcome:

Reduce surgical pain by 37%.

Red light therapy bone dose

Facial Fracture Edema Red Light Dose

Journal:

The Effect of Light-Emitting Diode (590/830 Nm)-Based Low-Level Laser Therapy on Posttraumatic Edema of Facial Bone Fracture Patients

Wavelength:
590, 830
Irradiance:
Unknown
Condition:
Bone Fracture, Pain
Outcome:

16.5% edema reduction in LLLT group compared to 7.3% in sham group.

Science study red light therapy motor function

TMJ Improved Movement and Pain Infrared Light Dose

Journal:

Lasertherapy efficacy in temporomandibular disorders: control study.

Wavelength:
Range
Irradiance:
40
Condition:
Pain, TMJ
Outcome:

Decrease TMJ pain and increase jaw movement.

Science study red light therapy motor function

TMJ Pain, Chewing Improvements Infrared Light Dose

Journal:

Evaluation of low-level laser therapy in the treatment of temporomandibular disorders.

Wavelength:
Range
Irradiance:
43.21
Condition:
Pain, TMJ
Outcome:

Improve TMJ mouth opening range, decrease pain, chewing difficulty, and tenderness.

Arthritis red light therapy dose

Pain, Flexion, Circumference Knee Osteoarthritis Red Light Dose

Journal:

The effect of low-level laser in knee osteoarthritis: a double-blind, randomized, placebo-controlled trial.

Wavelength:
830
Irradiance:
10,000
Condition:
Arthritis, Pain
Outcome:

Improve knee osteoarthritis pain, flexion, pressure, sensitivity, and circumference.

Arthritis red light therapy dose

Painful Knee Osteoarthritis Infrared Light Dose

Journal:

Efficacy of different therapy regimes of low‐power laser in painful osteoarthritis of the knee: A double‐blind and randomized‐controlled trial

Wavelength:
Range
Irradiance:
10
Condition:
Arthritis, Pain
Outcome:

Reduce knee osteoarthritis pain.

Arthritis red light therapy dose

Geriatric Degenerative Osteoarthritis Red Light Dose

Journal:

Improvement of Pain and Disability in Elderly Patients with Degenerative Osteoarthritis of the Knee Treated with Narrow‐Band Light Therapy

Wavelength:
633, 830
Irradiance:
830 nm 11 power density C, 122 power density P; 633 nm 8 power density C, 34 power density P
Condition:
Arthritis, Pain
Outcome:

Reduce geriatric degenerative osteoarthritis pain.

Arthritis red light therapy dose

Knee Arthritis Pain and Inflammation Reduction Red Light Dose

Journal:

Photobiomodulation via a Cluster Device Associated With a Physical Exercise Program in the Level of Pain and Muscle Strength in Middle-Aged and Older Women With Knee Osteoarthritis: A Randomized Placebo-Controlled Trial

Wavelength:
808
Irradiance:
100
Condition:
Arthritis, Pain
Outcome:

Reduce knee arthritis pain and inflammation.

Arthritis red light therapy dose

Knee Osteoarthritis Pain Reduction Red Light Dose

Journal:

Incorporation of Photobiomodulation Therapy Into a Therapeutic Exercise Program for Knee Osteoarthritis: A Placebo-Controlled, Randomized, Clinical Trial

Wavelength:
640, 875, 905
Irradiance:
100
Condition:
Arthritis, Pain
Outcome:

Reduce knee osteoarthritis pain.

Arthritis red light therapy dose

Prevent Arthritis Joint Degeneration Red Light Dose

Journal:

Can Photobiomodulation Associated With Implantation of Mesenchymal Adipose-Derived Stem Cells Attenuate the Expression of MMPs and Decrease Degradation of Type II Collagen in an Experimental Model of Osteoarthritis?

Wavelength:
808
Irradiance:
50
Condition:
Arthritis, Pain
Outcome:

Prevent knee arthritis inflammation and degeneration.

Science study red light therapy motor function

Speedier Knee Exercise Recovery Red and Infrared Dose

Journal:

Effect of Light-Emitting Diodes Therapy (LEDT) on Knee Extensor Muscle Fatigue

Wavelength:
660, 850
Irradiance:
10, 30
Condition:
Arthritis, Pain
Outcome:

Reduce post-exercise loss of function.

Red light therapy virus dose: herpes, shingles, post herpetic neuralgia

Herpes Zoster Pain Remission Red Light Dose

Journal:

TREATMENT OF POST HERPETIC NEURALGIA USING A 904 nm (INFRARED) LOW INCIDENT ENERGY LASER: A CLINICAL STUDY

Wavelength:
904
Irradiance:
6
Condition:
Herpes/Shingles/Post Herpetic Neuralgia, Pain
Outcome:

Reduce post-herpetic neuralgia pain from from 8.54/10 to 0-3/10.

Red light therapy virus dose: herpes, shingles, post herpetic neuralgia

Reduce Herpes Zoster Pain Red Light Dose

Journal:

Early Application of Low-Level Laser May Reduce the Incidence of Postherpetic Neuralgia (PHN)

Wavelength:
633
Irradiance:
50
Condition:
Herpes/Shingles/Post Herpetic Neuralgia, Pain
Outcome:

Prevent post-herpetic neuralgia: “Applying LLLT within the first 5 days of herpes zoster eruption significantly reduced the incidence of PHN.”

LLLT: low level light therapy

PHN: post-herpetic neuralgia

Red light therapy virus dose: herpes, shingles, post herpetic neuralgia

Pain Reduction of Post-Herpetic Neuralgia Red Light Dose

Journal:

Role of Low-Level Laser Therapy in Post-Herpetic Neuralgia: A Pilot Study

Wavelength:
650
Irradiance:
60 (theoretical)
Condition:
Herpes/Shingles/Post Herpetic Neuralgia, Pain
Outcome:

Reduce shingles pain from severe to severe/moderate/mild with no remissions for at least “several months.”

Red light therapy virus dose: herpes, shingles, post herpetic neuralgia

Prevent Herpes Recurrence Red Light Dose

Journal:

Low-intensity Laser Therapy Is an Effective Treatment for Recurrent Herpes Simplex Infection. Results From a Randomized Double-Blind Placebo-Controlled Study

Wavelength:
690
Irradiance:
80
Condition:
Herpes/Shingles/Post Herpetic Neuralgia, Pain
Outcome:

Increase time to recurrence of herpes outbreak.

Science study red light therapy motor function

Carpal Tunnel with Splinting Red Light Therapy Dose

Journal:

The Effectiveness of Conservative Treatments of Carpal Tunnel Syndrome: Splinting, Ultrasound, and Low-Level Laser Therapies

Wavelength:
904
Irradiance:
2.4
Condition:
Carpal Tunnel, Pain, Tendonitis
Outcome:

Decrease carpal tunnel pain.

Science study red light therapy motor function

Carpal Tunnel Function and Pain Improvement Red Light Dose

Journal:

Comparison of the Long-Term Effectiveness of Physiotherapy Programs With Low-Level Laser Therapy and Pulsed Magnetic Field in Patients With Carpal Tunnel Syndrome

Wavelength:
904
Irradiance:
150
Condition:
Carpal Tunnel, Pain, Tendonitis
Outcome:

Decrease carpal tunnel pain.

Red light therapy brain dose

Low Back Pain and Depression Red Light Dose

Journal:

A Case Control Series for the Effect of Photobiomodulation in Patients With Low Back Pain and Concurrent Depression

Wavelength:
660, 850
Irradiance:
100
Condition:
Depression, Emotion, Pain
Outcome:

Reduce back pain and depression.

About the EMF Channel Light Dose Database

Many people purchase red light therapy or neuromuscular electrical stimulation devices without knowing optimal doses for the results they want to see. The right dose is especially key to light therapies, which have optimal windows of wavelength and energy delivered. Treatment doses outside of those windows will nullify results or harm the user. I took the results from successful EMF studies when these studies included:

  • Photobiomodulation (Red Light Therapy, Blue Light Therapy, Low Level Light Therapy)
  • Transcutaneous Electromagnetic Nerve Stimulation (TENS)
  • Pulsed Electromagnetic Field (PEMF) Therapy
  • Neuromuscular Electrical Stimulation (NMES)

Many studies do not report exact dose parameters they used. They are therefore not included here, even the study reported a therapeutic result.

Light Dose Parameters
Term
Parameter
Time
Seconds
Power
milliwatts (mW) or Watts (W)
Total Dose Energy
joules (J) = power x time = Watts x seconds
Wavelength
nanometers
Frequency
Hertz (Hz)
Spot Size
cm(2) (centimeters squared)
Duty Cycle
percentage of time light source is on during one cycle
Power Density (or Intensity)
Watts per centimeters squared (W/cm(2) = power / probe size
Energy Density (Fluence)
jules per centimeters square (J/cm(2)) = total energy delivered by the probe size

Source: Turchin, Curtis. Light and Laser Therapy: Clinical Procedures 6th Edition (p. 16)

Image by Thomas-Suisse from Pixabay