Red light therapy (RLT) is a technique that uses red low-level wavelengths of light to treat skin issues such as wrinkles, scars, and persistent wounds, among other conditions.

 

Red light works by producing a biochemical effect in your cells, in order to strengthen the mitochondria. The mitochondria are the powerhouse of the cell — it’s where the cell’s energy is created. The energy-carrying molecule found in the cells of all living things is called ATP (adenosine triphosphate). By increasing the function of the mitochondria using RLT, a cell can make more ATP. With more energy, cells can function more efficiently, rejuvenate themselves, and repair damage.

 

RLT is different from laser or intense pulsed light (IPL) therapies because it doesn’t cause damage to the skin’s surface. Laser and pulsed light therapies work by causing controlled damage to the outer layer of the skin, which then induces tissue repair. RLT bypasses this harsh step by directly stimulating regeneration of the skin. The light emitted by RLT penetrates roughly 5 millimeters below the skin’s surface.