Laser hair removal is the method of hair elimination by means of rays from laser light that remove the hair from the very root. It had been done professionally for about twenty years before becoming widely popular in 1995 and 1996. One of the first published articles narrating laser hair removal was written by the group at Massachusetts General Hospital in 1998. Laser hair removal is very popularly done in salons, and even in hospitals using devices especially created and sold for clients’ rising demand for the procedure. Many comments about laser hair removal methods, safety, and efficacy have been put out by the dermatology literature and are approved.

How Laser Hair Removal Came Into Being

The main aspect behind laser hair removal is selective photothermolysis (SPTL), the matching of a very carefully used wavelength of light and ray duration to obtain optimal effect on a targeted tissue with minimal effect on the tissue around it. Lasers used will in this treatment not cause any damage that the usual lasers do by selectively heating dark target matter, melanin, thereby heating up the basal stem cells in the follicle which causes hair growth, the hair follicle, while not heating the rest of the skin. Light is taken up by dark objects but rejected by light objects and water, so laser energy can be absorbed by dark material in the hair or skin, with much more speed and intensity than just the skin without any dark adult hair or melanin.

Melanin

Melanin is said to be the main chromophore for all hair removal lasers recently popular in the market. Melanin is created naturally in the skin and gives skin and hair their color. There are two types of melanin in the hair. Eumelanin gives hair a brown or black color, while pheomelanin gives hair blonde or red color. Because of the selective absorption of photons of laser light, only hair with colors such as black, brown, reddish-brown hair or dirty blonde can be removed. White hair, light blonde, and strawberry blonde hair does not respond well. The laser works best with dark coarse hair. Light skin and dark hair are a usually desired mixture, being the most effective and producing the best results, but lasers such as the treatment laser are able to target black hair in patients with dark skin with some success.

Laser hair removal has become far too trendy because of its quickness and professionalism, although some of the efficacy varies upon the skill and experience of the laser cosmetician and the choice and availability of different laser technologies used for the treatment. Some will need touch-up appointments, especially on large areas, after the initial set of 3–8 treatments.

Benefits of Laser Hair Removal

Lasers are useful for eliminating extra hair from the face, leg, chin, back, arm, underarm, bikini line, and other areas.

advantages of laser hair removal include:

• Precision. Lasers can carefully target dark, rigid hairs while leaving the surrounding skin undamaged.
• Speed. Each pulse of the laser takes a tiny number of seconds and can treat many hairs at the same time. The laser can treat an area approximately the size of a quarter every second. Small areas such as the upper lip can be treated in less than a minute, and large areas, such as the back or legs, may take up to an hour.
• Predictability. Most clients have permanent hair loss after an average of three to seven sessions.

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