Low-level laser therapy (LLLT) devices utilize specific wavelengths of light to interact with tissues, aiming to stimulate cellular processes and promote healing. These devices deliver light energy to targeted areas without generating significant heat. This process is often employed for pain management, inflammation reduction, and tissue repair in various medical fields, including physiotherapy and dermatology. A typical device consists of a hand-held unit emitting the laser, controlled via settings that adjust factors such as wavelength, power, and treatment duration.
The potential for photobiomodulation to alleviate pain and accelerate healing has led to its increasing use in managing conditions like musculoskeletal injuries, arthritis, and skin wounds. Research suggests that specific light wavelengths can influence cellular functions, leading to improved blood flow, reduced inflammation, and stimulated tissue regeneration. While its historical roots trace back to the invention of lasers in the mid-20th century, advancements in technology have led to more portable, effective, and accessible devices.