Red light therapy (RLT) is a therapeutic technique that uses red low-level wavelengths of light to treat skin issues, such as wrinkles, scars, and persistent wounds, among other conditions. It works by increasing the function of mitochondria, allowing a cell to make more ATP(energy carrying molecule in all cells). 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 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.