Light-emitting diode (LED) is a light emitting semiconductor electronic components. NASA commenced to apply the device in biology and used these to stimulate plant growth in space as early as in 1950s. Subsequently, research indicate that LEDs were able to penetrate light into human skin tissue to promote wound healing and tissue growth.

IPL stands for Intense Pulsed Light technology, it is a technology used by cosmetic and medical practitioners to perform various skin treatments for aesthetic and therapeutic purposes, including hair removal, skin rejuvenation,as well as to alleviate dermatologic diseases.

Cosmetic electrotherapy based on electrotherapy, which has been researched and accepted in the field of rehabilitation. It is a range of beauty treatments that uses low electric currents passed through the skin to produce several therapeutic effects such as muscle toning in the body and micro-lifting of the face.