While Red Light Therapy (Photobiomodulation) is generally safe, overuse can potentially lead to diminished results or adverse effects. Using RED LIGHT THERAPY (PBM) too frequently or at too high a dose can cause a biphasic dose response, where too much light exposure results in reduced effectiveness or a lack of therapeutic benefit. It's essential to adhere to the guidelines recommended by a healthcare professional and to use RED LIGHT THERAPY (PBM) devices directed to avoid such counterproductive outcomes.