The principle of laser hair removal is the principle of selective thermokinetics. (that is, the selected wavelength only acts on melanin and not on normal skin tissues, and the selected pulse width only acts on melanin in hair follicles and not on melanin in the basal layer of skin. ) Hair follicle and hair shaft are rich in melanin, which is distributed between cells of hair bulb matrix and can also be transferred to the structure of hair shaft (such as medulla, cortex and cuticle). Laser in laser hair removal can accurately and selectively target melanin for hair removal treatment. After absorbing the energy of laser, the temperature of melanin rises sharply, which leads to the destruction of surrounding hair follicle tissue and the removal of hair.

Laser hair removal is multi-wavelength and can selectively remove hair from different parts and depths; The laser in laser hair removal often has only a medium wavelength, and its effective penetration is limited. Only one kind of skin can be treated, and the effect on another kind of skin is limited. Moreover, all hair removal lasers belong to class 4 lasers, which are very dangerous to human eyes and soft tissues.

Preparatory work/about to start work

1. Do not use depilatory cream, depilatory cream and other cosmetics before laser depilation. Take a bath before depilation.

2, first determine the location and scope of hair removal, because hair removal is permanent, according to a certain range of hair removal can have a cosmetic effect.

3. It is normal for the laser to feel warm when it passes through the skin. Doctors will selectively apply a little topical anesthetic to particularly sensitive people, and beauty seekers can happily complete hair removal.

4. After laser hair removal, the doctor will cold compress the hair removal place for 10 to 15 minutes, and the hair removal place should avoid exposure to the sun.