Will laser depilation be permanent in long hair? Laser hair removal mainly uses laser to destroy our hair follicles and make our hair follicles lose their growth ability.
A hair removal method is a long-term hair removal method if there is no obvious hair growth for a long time after the treatment. Laser hair removal and electroacupuncture hair removal belong to this type of treatment. As for laser hair removal, the effect of treatment is determined by the number of times of treatment, the interval of treatment, the energy during treatment, the individual differences of the body and many other aspects. Generally speaking, the more times of treatment, the more likely it is to achieve the purpose of long-term hair removal. If the number of treatment is too small, the effect of treatment will be temporary. Therefore, the effect of long-term hair removal is relative rather than absolute, and we can’t drill a bull’s horn.
Generally speaking, to achieve the purpose of hair removal, a course of treatment of 6 times is necessary, and the treatment should be carried out in strict accordance with the interval told by the doctor. The treatment time should not be too long apart, otherwise it is easy to fail. Of course, there are also individuals with powerful hair follicles. Although there are still a few hair growth after a course of very strict hair removal treatment, the hair at this time is generally small, similar to bristles, which does not affect the appearance. If it is obvious, another course of treatment should be carried out. Of course, the most reliable method of hair removal at present is laser hair removal, which is not only safe but also effective. Therefore, laser hair removal soon became popular all over the world. In fact, many hair removal after a course of treatment still have no hair growth and recurrence after many years.
Human skin is a relatively transparent structure. In front of powerful laser, the skin is just a piece of transparent cellophane. Therefore, the laser can pass through the skin very smoothly and reach the hair follicle. Because there is a lot of melanin in the hair follicle, it can preferentially absorb a large amount of laser energy and finally convert it into heat energy, so as to increase the temperature of the hair follicle and destroy the function of the hair follicle. In this process, because the skin does not absorb laser energy or absorbs a small amount of laser energy, the skin itself will not be damaged. In addition, the cooling device for protecting the skin is installed on the laser treatment head, so the skin will not be damaged during hair removal treatment, so there will be no abnormal pigment or scar reaction.
There are three periods of hair growth: growth period, stationary period and degenerative period. Only when the hair follicle is in the growth period, there will be a large number of pigment particles in the hair follicle and can absorb a large amount of laser energy. Therefore, the laser can remove the hair in the growth period, while the hair pigment in the degenerative period and stationary period is relatively small, so the therapeutic effect of laser is relatively weak. For this part of hair, laser removal can only be carried out after they slowly change to the growth period. Therefore, laser hair removal treatment can not be successful at one time. It usually needs multiple continuous laser irradiation to achieve the ideal effect.
In addition, the regeneration function of hair follicles is very powerful. One laser irradiation can only temporarily stop the growth of hair follicles or seriously weaken their normal function, rather than destroy hair follicles. If the treatment interval is too long, the hair follicles will have enough time to restore their growth function, which is also the reason why hair removal needs to be repeated for many times. In order to achieve the ideal treatment effect, the therapeutic effects of multiple lasers need to be accumulated on the hair follicles, Finally, completely destroy the hair follicle and lose its growth function.
Photon can simulate the effect of laser for hair removal treatment. Because the light source of photon is not as pure as laser and contains a variety of compound light, its effect on skin will be multifaceted, so it is more suitable for photon rejuvenation treatment, but the effect of hair removal is not as good as laser. Therefore, laser hair removal has more effective and safe advantages than photons.
Laser hair removal has no effect on the physiological function of the skin, and does not affect the normal perspiration and other physiological functions of the skin. It can be said to be the best means of modern hair removal.
Therefore, laser hair removal will not grow hair again. It is relatively permanent, so we can use laser hair removal for hair removal, which is almost non-invasive.