Does Laser Hair Removal Really Work Permanently?
Laser hair removal is the most effective mix of hair reduction and the bare minimum hassle, but while it is effective, it is not entirely permanent. Laser hair removal can lead to a reduction of as much as 90% of hair growth on the targeted region. It is a simple, uncomplicated process that involves shining laser light to the hair follicles which gradually warms the follicle until it is not capable of growing new hair. At first, this worked best for individuals with light skin tone and coarse dark hair, as the melanin in dark hair was better at transforming light into heat, but more sophisticated laser light technologies are working for all skin and hair types.
The reason laser hair removal is not entirely permanent is due to the way in which hair grows, and also the healing strength of the body. There are various cycles of hair regrowth - active, regressive, and resting - and any hair in the resting or regressive cycle are not developed enough for the laser to affect them. This is why a number of treatments are generally necessary to get the results you want, otherwise hairs in the resting cycle will push into the active cycle and start developing all over again. Luckily, you can avoid this issue by simply going back for an additional set of treatments, until finally each of the hair follicles are taken care of.
Because of the way your system fixes itself over time, it is possible that a few new hair follicles will develop and grow hair, but this hair is often much finer and of a lighter tone, that makes it less obvious - in case you still wish to remove it, you can just go with another treatment. At this time, this is actually the most effective hair removal solution that modern technology has been able to develop.
Currently, the one hair removal treatment method the FDA identifies as "permanent" is electrolysis, which happens to be an exceedingly tricky process that involves sliding small needles directly into the skin and electrocuting the hair follicles to death - far from a pleasing option, and patients will almost always be exposed to mild to severe pain, and treatments will take nearly 4 years (yes, that's right - four YEARS) to perform.
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