Low Level Laser Therapy works by beaming light energy over the skin of the affected area of your body in order to stimulate your cells' mitochondria (the powerhouse). When the mitochondria absorbs the particles of light from the laser, this gives it an energy boost. Through the process of light passing through your skin and being absorbed, this fuels the cellular processes in your body, which thus triggers chemical changes to help your tissues regrow and heal, as well as help damaged cells.
There is no damage to your healthy tissue or cells with LLLT. Think of the process of how Low Level Laser Therapy works as similar to photosynthesis – plants absorb sunlight in order to convert it into energy so they can grow, right? When your cells absorb the light energy from the cold laser, it then uses that to increase intracellular metabolism. This results in effects such as: reduced pain, improved tissue growth, improved circulation, better cell communication, and more.