1, characteristics of hair removal
1, and the best wavelength is adopted for treatment: the laser can be selectively and fully absorbed by melanin, and the laser can effectively penetrate the skin to reach the hair follicle position. The role of laser is effectively reflected in the heat generated by melanin in hair follicles for hair removal.
Laser can be fully absorbed by melanin selectively, and at the same time, laser can effectively penetrate the skin to reach the position of hair follicle.
2, the best hair removal effect, the required laser pulse time is related to the thickness of hair, the thicker the hair, the longer the required laser action time, and the ideal effect can be obtained without damaging the skin.
3. Laser hair removal treatment will not produce pigment precipitation on the skin surface after hair removal like traditional hair removal methods, because the skin absorbs less laser during laser hair removal treatment.
4, the use of cooling system, the whole process effectively protect the skin from laser burns.
2. Hair effects
1. Hair can be divided into three periods, namely, growth period, regression period and static period. The energy emitted by the laser instrument can only destroy the hair follicle in the growing period, and has no obvious effect on the hair in the fading period and the rest period. Only when these hairs turn into growth period can laser play a role, so laser hair removal needs many treatments to achieve obvious results.
2. If the proportion of hair in a certain part is small, the number of treatments will increase. On the contrary, the number of treatments can be reduced.
3. Different hair growth cycles based on different parts have different treatment intervals. If the rest period of hair is relatively short, the interval can be as short as l months; The hair rest period of trunk and limbs is relatively long, so the treatment interval is about 2 months, so you can easily enjoy the confidence brought by silky skin.
4. If the hair follicle density in a certain part is too high, the laser energy should be appropriately reduced during treatment.
3, adapt to the object
Laser hair removal is suitable for dark and light hair in all parts of the body, not for white hair and excess black hair in all parts of the body. Electroacupuncture, drugs, electric tweezers and other instruments are ineffective or unsuccessful in hair removal.
4. Preventive measures
1. See an experienced doctor after going to the plastic surgery hospital. First of all, determine the location and scope of hair removal, because hair removal is lasting, and only a certain range of hair removal can play a cosmetic effect.
2. It is normal for laser to have a certain warm feeling 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.
3. Go to the plastic surgery hospital for reexamination 20 days after each depilation. The doctor will determine the hair removal effect according to the specific situation, and arrange the next hair removal time and hair removal range.
Step 5 understand the problem
1, is it safe?
Laser hair removal is a very safe hair removal method: it has strong pertinence, no side effects on human body and almost no influence on skin.
2. Do you need the number of times?
Laser hair removal usually takes three to six times, mainly due to two factors: first, most hair follicles are tied together in groups of three and open in the same pore, and one hair in the pore is the hair of one of the three hair follicles below it, so one treatment can only destroy one hair follicle in a group; Second, hair growth goes through growth period, regression period and rest period. Laser hair removal is effective in the growth period of 75%, in the regression period of 25%, and almost ineffective in the rest period.
3. Does it affect perspiration?
The laser removed by laser only acts on melanin in hair follicles, but there is no melanin in sweat glands, so it will not absorb laser to damage sweat glands and has no other adverse effects on human body. Therefore, laser hair removal will not affect perspiration.
4. Is it harmful to the skin?
The human skin is a relatively light-transmitting structure. Clinical experiments by plastic surgeons have found that the skin is simply a transparent cellophane in front of a powerful laser, so the laser can penetrate the skin smoothly and reach the hair follicle. Because there is more melanin in hair follicle, it can preferentially absorb a large amount of laser energy and finally convert it into heat energy, thus increasing the temperature of hair follicle and destroying the function of hair follicle. In this process, because the skin relatively does not absorb laser energy, or absorbs a small amount of laser energy, the skin itself will not be damaged.
5. Is the effect permanent?
For the effect of laser hair removal, it can be permanently removed. Of course, the treatment effect is the best in the growth period of hair. The more melanin is secreted, the better the therapeutic effect is. Laser hair removal has little effect on hair in retrogression and rest period, but it can inhibit the rapid growth of hair in a short time and achieve the predetermined effect.
6, the method of hair removal in summer
(1) depilatory cream
Hair removal cream is to use chemicals to dissolve hair structure to achieve the purpose of hair removal.
The depilatory cream is easy to use and completely painless, which is very suitable for girls who are afraid of pain. But the disadvantage is that it doesn't last long. It takes about three days for the body hair to grow new hair.
Moreover, when using depilatory cream, the application time should not be too long, and the longest time should not exceed 10 minute. In addition, because hair is dissolved by chemical components, girls with allergic skin should choose carefully, and do not use depilatory cream for skin with wounds or inflammation.
(2) wax depilation
Stick the body hair with beeswax, and pull it out with the help of the Force when tearing off the beeswax. It will be painful and inconvenient to operate at home. But it's a little fast. It takes less than 1 minute from pasting to removing body hair, and the effect is lasting. It can last for 2-6 weeks without body hair, and the regrown hair will feel softer.
It is not recommended to use beeswax for skin with wounds or inflammation. In addition, the skin will be red and swollen after hair removal, so ice should be applied after hair removal to relieve pain and redness. If you have a budget, it would be better to go to a professional place to remove wax.
(3) hair removal knife
Cut off the hair exposed outside the body surface with a blade to achieve the effect of hair removal. You don't have to spend much money except buying a hair removal knife. It's the most economical way to remove hair. Although temporary smoothness and cleanness can be achieved by using a scraper, the regrown hair in the scraped area has the touch of stubble, and the duration is not long enough, and it is shaved almost every day.
(4) Depilator
Using the high-speed rotating gear above the depilator to pull out the hair roots is no more painful than wax depilation, and the operation time is much longer, but it is more convenient and simple to operate than wax depilation. The advantage is that you don't need to spend extra money after putting it in the depilator, and it lasts for a long time. After taking it off, there will be no residual hair in the pores, and the new hair is similar to the original one.
Pay attention to the need for ice after hair removal to relieve the feeling of redness and discomfort. In addition, hair removal should be pulled along the direction of hair growth, which will be less painful.
(5) laser hair removal
If the budget is sufficient, it is a once-and-for-all method. Using melanin in hair to absorb light energy, the growing hair follicle is blasted by light energy. It only works on growing hair follicles, so it takes 3-5 treatments to have a permanent hair reduction effect. Usually do it once a month, and after two or three times, you will see obvious changes, with less or almost no hair, and the hair that has not been completely taken off will become very soft.
Laser hair removal is irritating to the skin. Don't exfoliate before treatment. In order to alleviate the pain, you can shave the hair on the surface with a razor the day before laser hair removal.