Photobiomodulation (PBM), formerly known as low-level laser light therapy (LLLT), is a safe phototherapy technique that uses wavelengths of the visible light spectrum which includes red light (RL, 620–700 nm) and near-infrared (NIR, 700–1440 nm). This treatment modality has been used in dermatology, both in clinical settings and at home. PBM involves the use of various light sources, including low-level lasers (LLL) and light-emitting diodes (LED), to deliver therapeutic light. Reviews on the matter have already been conducted.