Cold laser therapy (LLLT) or photobiomodulation is FDA cleared for pain control, inflammation, and increasing blood flow. They can be used to treat acute conditions, such as sprains and strains, as well as chronic conditions such as arthritis, fibromyalgia, soft tissue injuries, and muscle spasms.
Different wavelengths and outputs of low-level light are applied directly to a targeted area. The body tissue then absorbs the light. The red and near-infrared light cause a reaction, and the damaged cells respond with a physiological reaction that promotes regeneration.
Superficial tissue is commonly treated with wavelengths between 600 and 700 nanometers (nm). For deeper penetration, wavelengths between 780 and 950 nm are used.
The procedure is painless and noninvasive. The wavelengths do not create heat like surgical lasers, hence the term "cold Laser". Each treatment typically takes only a few minutes.