2025PUBLICATION
Red Light Therapy: Five Areas Of Health Research
A reader’s guide to UCLA Health’s overview, with a closer look at the limits of its cognition example.
Research library
Explore The Science Behind Red Light Therapy
Browse existing research summaries on red light therapy and photobiomodulation.
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2025PUBLICATION
Measuring Light Dose In Photodynamic Therapy
AAPM technical guidance explains how detector calibration, tissue scattering and treatment geometry affect light-dose measurement in photodynamic therapy. It does not test home red light therapy benefits.
2025PUBLICATION
Light Therapy Before Exercise: A Muscle Recovery Review
A 2025 review found low-certainty evidence of reduced muscle soreness with photobiomodulation before exercise. The review covered three recovery approaches; this summary is based on the indexed abstract.
2024PUBLICATION
Wound Healing
This randomised, placebo-controlled study involving 80 participants examined the relationship between different doses of photobiomodulation, used alongside standard wound care, and changes in the size of diabetic foot ulcers.
2019PUBLICATION
Pain And Physical Function In Knee Osteoarthritis
This systematic review and meta-analysis combines randomised, placebo-controlled studies involving participants with knee osteoarthritis and evaluates reported outcomes relating to pain and physical function following low-level light therapy.
2017PUBLICATION
Inflammatory Processes
This scientific review evaluates cellular, animal, and human studies examining the effects of photobiomodulation on biological processes associated with oxidative stress and inflammation.
2017PUBLICATION
Blood Circulation And Vascular Responses
This experimental study examined the effects of red and near-infrared light on vascular tissue, nitric oxide-related mechanisms, and vasodilation. These findings do not directly demonstrate a treatment outcome or clinical benefit in humans.
2016PUBLICATION
Post-Exercise Muscle Recovery
In this randomised, double-blind, placebo-controlled study involving 50 healthy men, muscle strength, post-exercise muscle soreness, and selected markers of muscle damage were evaluated in participants receiving photobiomodulation. The results showed differences between the intervention and control groups.
2013PUBLICATION
Light Therapy For Skin: A Review Of Early Evidence
A 2013 narrative review examines laboratory and early clinical evidence for light therapy in skin. Findings vary by condition and protocol; the paper does not establish a universal home-treatment dose.
2008PUBLICATION
Low-Level Laser Therapy For Low-Back Pain: Uncertain Evidence
A 2008 Cochrane review of seven small trials found insufficient evidence to establish the clinical effect of low-level laser therapy for nonspecific low-back pain. Protocols and comparison treatments varied.
2005PUBLICATION
Wavelength-Dependent Responses In Cultured Cells
An analysis of seven HeLa-cell action spectra examined how light wavelength relates to DNA and RNA synthesis and cell adhesion. The findings concern laboratory responses, not treatment outcomes in people.
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