There are currently 2 known instances where there is a possibility that laser hair removal can make hair grow back thicker and darker than it was before treatment. Please take into account that one is preventable while the other is so rare, the likelihood of it happening are extremely small.
The initial scenario can happen to anyone, though many people that choose laser treatment will not be mindful of this risk prior to treatment. To be able to perform 【激光脫毛】, the technician will require you to shave the desired area a couple of days just before your appointment. Your hair must be as short as possible, but still be visible, to ensure the laser to work to its full potential. Unfortunately, some areas that people wish to have lasered, (like the face and back), contain a mixture of the dark coarse hairs they want gone and “peach fuzz” (the extremely fine and colorless hairs which cover lots of your body). When shaving this area in preparation for laser treatment, the peach fuzz which is present also gets shaved. With shaving, hairs tend to grow back thicker, darker, and faster with every shave. The fine hairs which were once unnoticeable may now commence to appear darker upon return, which may make the illusion more and more hair is beginning to grow after having laser treatment.
The next instance is a condition called “paradoxical hypertrichosis”. This is a rare reaction which can be experienced after hair laser removal treatment. As paradoxical hypertrichosis, (or postlaser hypertrichosis), continues to be a relatively new and very rare condition, there has not been a lot of research done on the subject. It is difficult to determine what the precise reason for this phenomenon is. Some specialists advise that this unwanted hair regrowth could be due to extremely low intensity laser or IPL treatments at levels which can be too low to work and find yourself stimulating new hair regrowth inside the hair bulb rather than destroying the hair bulb completely. Others suggest that ethnic background can be a factor as research has learned that this reaction tends to happen more in people who have skin types 3, 4, and 5 (olive and darker skin) than it can in individuals with lighter skin. Additionally there is the possibility that particular medication can increase the potential risk of paradoxical hypertrichosis if taken concurrently as the laser treatments. As you can tell, individuals with this disorder are so few and far between that it must be difficult to get a proper sampling.
Whatever the suggested factors of paradoxical hypertrichosis, it is very important to locate a laser technician which is skilled and capable of perform your treatments. They must be knowledgeable enough to discover the correct laser intensity setting for your particular hair and skin attributes. Too low could be ineffective and cause adverse effects. Intensity that is too high can cause negative effects such as minor burns and skin discoloration. An ideal balance will safely ujuvnd effectively remove your unwanted hair and make your laser hair removal experience a positive one.
Even though it is very rare that 【激光脫毛】 can make your hair grow back thicker, it has been proven to happen in some cases. If you are concerned, or once you know the area you would like to have treated includes peach fuzz, maybe a different method like electrolysis hair removal will be a better alternative to suit your needs. Electrolysis will not need you to shave just before treatment so you do not run the chance of shaving over any peach fuzz and causing it to cultivate back thicker. Each hair is individually treated so you may not run the risk of some other area of the epidermis receiving treatment other than where you want to be treated.