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Will Red Light Help Your Condition?
3,004 human studies, each scored for how well red light worked. Find your condition to see the evidence.
Every tile is a condition. Its weight is the number of human studies testing red or near-infrared light on it. Click a tile to read its emission spectrum, the wavelengths researchers actually used. Filter by wavelength to see which conditions were studied at it.
How to read a tile
Top left is the element number. Top right is its mass: the number of human studies. The coloured stripe is its body system; the glow underneath on hover is its most-used wavelength.
Effectiveness scores
Each study carries a 1 to 5 effectiveness score assigned when the database was compiled, based on the results the authors reported. Studies judged ineffective were removed, so this is a map of where light has shown promise, not a verdict.
The data
Built from Vladimir Heiskanen's photobiomodulation study compilation, human studies only. Every one of the 3,004 studies is grouped into one of 118 conditions on the body. Research summaries only, not medical advice.