The working principle of laser hair removal machine

Laser hair removal methods can be divided into 3 categories:
1. Laser non-selective damage hair removal method, such as CO2 laser hair removal, this method is time-consuming and easy to form scars;
2. Photodynamic therapy, such as oral or topical use of α-aminocaproyl propionic acid followed by laser irradiation, this method seems feasible in theory, but its clinical application is seldom;
3. Selective photothermal hair removal, namely laser and intense pulsed light hair removal.

The principle of modern laser hair removal machine is based on the principle of "selective photopyrolysis" proposed by American doctors Aderson and Parrish in 1983: a certain wavelength of laser light penetrates the epidermis, enters the dermis, and selectively coats hair and hair follicles. The melanin particles absorb and produce light and heat effect, and the heat energy in the hair is conducted to the surroundings, completely destroying the "hair roots" such as hair follicles and stem cells, resulting in permanent hair removal. The normal tissue around the hair follicle does not contain melanin particles, so it does not absorb this laser, so the impact is small and generally does not cause paralysis.

Beijing LeongBeauty Technology Co., Ltd. was established in 2007 year, as a professional China Laser Hair Removal Machines manufacturers and China Laser Hair Removal Machines suppliers. If you want to know more, please contact us.