Factors affecting the hair removal effect of Laser Hair Removal Machine
Factors affecting the hair removal effect of Laser Hair Removal Machine
1. The choice of the laser type of the Laser Hair Removal Machine (ie the wavelength of the Laser Hair Removal Machine): When choosing the laser hair removal laser with the wavelength of the Laser Hair Removal Machine, two factors need to be considered, one is the penetration depth of the laser ; The second is the selectivity of target absorption. Because the hair bulb is deeper, it is decided to use Laser Hair Removal Machine's longer wavelength and deeper penetration laser light source for treatment. If the laser cannot penetrate or penetrate shallowly and cannot reach the hair growth zone, it will be difficult to see the effect. Generally, the penetration depth of laser increases as the wavelength of the Laser Hair Removal Machine increases. Studies have shown that the wavelength of the ideal Laser Hair Removal Machine to destroy hair follicles is about 700nm. Another way to increase the penetration depth of the laser is to increase the light spot, which can reduce the loss of the laser in the tissue and make the laser penetrate deeper in the skin. In addition, the size of the spot also affects the speed of treatment.
2. The determination of the parameters of the Laser Hair Removal Machine: Laser hair removal is affected by the wavelength, spot, pulse width and energy of the Laser Hair Removal Machine of the Laser Hair Removal Machine. The ideal value of the parameters of Hair Removal Machine. According to the principle of selective photothermal action, the wavelength of Laser Hair Removal Machine of Laser Hair Removal Machine should be as long as possible while ensuring the selective absorption of melanin by light waves. Theoretically speaking, Laser Hair Removal Machine can improve the efficacy by lengthening the laser pulse width to make it close to the thermal relaxation time of the hair follicle. Because the longer the pulse width, the less likely it is that the tiny structures in the epidermis, such as melanosomes, will be damaged, while the relatively large structures, such as the melanosomes in the hair follicle, are more vulnerable. It is generally believed that the ideal hair removal laser pulse width should be between the thermal relaxation time of the epidermis (3-10ms) and the thermal relaxation time of the hair follicle (40-100ms).
