The principle of laser hair removal is mainly based on selective photothermal effects. Laser hair removal equipment generates lasers of specific wavelengths, which penetrate the surface of the skin and directly affect melanin in hair follicles. Due to the strong absorption ability of melanin towards lasers, laser energy is absorbed by melanin and converted into thermal energy. When the thermal energy reaches a certain level, the hair follicle tissue will be damaged, thereby preventing hair regeneration.
Specifically, laser hair removal disrupts the growth cycle of hair follicles, causing them to enter a degenerative and resting phase, thereby achieving the goal of hair removal. During the growth period, hair follicles contain a large amount of melanin, so laser hair removal has the most significant effect on hair during the growth period. However, due to the fact that different parts of hair may be in different growth stages, multiple treatments are required to achieve the desired hair removal effect.
In addition, during the laser hair removal process, doctors will adjust the parameters of the laser equipment based on factors such as the patient’s skin type, hair type, and thickness to ensure the safety and effectiveness of the treatment. At the same time, before laser hair removal, doctors will conduct a thorough evaluation of the patient’s skin and inform them of potential risks and precautions.
In short, laser hair removal destroys hair follicle tissue through selective photothermal action, achieving the goal of hair removal. After multiple treatments, patients can achieve relatively permanent hair removal effects.
Post time: Apr-09-2024
