Is Laser Hair Removal Permanent?
Laser hair removal offers the best mix of hair reduction and minimum fuss, but even though it is quite effective, it is not totally permanent. Laser hair removal can result in a reduction of up to 90% of hair growth on the treated area. It is a simple, uncomplicated procedure which involves shining laser light to the hair follicles which gently warms the follicle until eventually it is not capable of growing new hair. In the beginning, this worked best for individuals with light skin tone and coarse dark hair, because the melanin in dark hair was far better at transforming light into heat, but newer laser light technologies work with all skin and hair types.
The reason laser hair removal is not entirely permanent is because of the way in which human hair develops, and also the healing strength of the human body. There are several periods 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 the reason many treatments are generally required to achieve the benefits you want, otherwise hairs in the resting cycle will push into the active cycle and start growing again. Luckily, you can avoid this concern simply by returning for the next round of treatments, until each of the hair follicles are treated.
Because of the way your system heals itself with time, it is possible that some new hair follicles will appear and grow hair, but this hair will likely be much finer and of a lighter shade, which makes it less obvious - but if you still want to get rid of it, you can just go for one more treatment. Right now, this is the simplest hair removal treatment that scientific research has been able to develop.
At this time, the sole hair removal treatment method the FDA accepts as "permanent" is electrolysis, which happens to be an exceptionally complex procedure that involves slipping fine needles into the skin and electrocuting the hair follicles to death - far from a pleasing option, and users are always put through mild to extreme discomfort, and treatments will take as much as 4 years (yes, you heard right - four YEARS) to complete.
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