Dye Pulse Light (DPL) refers to a new type of optical skin rejuvenation technology. Unlike traditional photorejuvenation technology (IPL, Intense Pulse Light), narrow-spectrum light technology can excite selected narrow-spectrum pulses in the 100nm band. Light, this band contains both the absorption peaks of melanin and oxygen and hemoglobin, which allows precise concentration of effective therapeutic energy and can quickly and efficiently solve facial pigmentation and telangiectasia (red face) problems. DPL narrow-spectrum light rejuvenation is known as the epoch-making optical beauty skin rejuvenation technology because its efficacy is significantly superior to photorejuvenation and the treatment cycle is shortened.