LED (Light Emitting Diode)
el-ee-dee
Definition
In skincare, LED refers to light emitting diode technology used to deliver specific wavelengths of light to the skin. Different wavelengths target different skin concerns — red light for collagen and anti-aging, blue light for acne-causing bacteria, and near-infrared for deep tissue repair and inflammation. LED devices are used in both professional clinical settings and at-home treatments, and the technology has decades of research supporting its efficacy for various skin concerns.
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