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Hair removal by laser
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Hair removal by laser only became commercially available and widespread some 30 years ago. That the treatment works, is now widely accepted in dermatological circles and the number of hair removal laser treatments performed has increased substantially in recent years. This has coincided with the publication of many studies and reviews of laser hair removal techniques, and improvements in both the safety and effectiveness of the procedures. Laser hair removal works primarily through a process known as selective photothermolysis (SPTL). Lasers can be used to 'selectively' heat matter that is a specific colour. In this instance, the lasers target melanin in the area with hair growth, without affecting the surrounding skin. Melanin occurs in both the skin and hair, and is giving it its colour. This melanin (as eumelanin) is in sufficiently higher quantities in black and brown hair for it to be targeted by the lasers. Light coloured hairs make far less suitable targets for removal using lasers. Modern lasers however, are improving on this technique, and are being used to target less dark hairs, as well as dark hair on patients with dark skin.
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In targeting the hairs rich in melanin, the laser heats them, effectively burning them off. Laser hair removal is available as a choice for most men and women, particularly for use on areas that are difficult or impossible to reach with other methods. These include the ear lobe, pubic areas, bikini lines, buttocks, abdomen, hands, and toes. Since 1997, lasers have had approval from the Food and Drug Administration in the United States, for use in "permanent hair reduction". That said, the actual efficacy of the procedure is still a topic for debate, and some have argued that it is dependant of the specific laser technology used at each clinic, and on the particular skills of the laser's operator. Laser hair removal requires that individuals attend several sessions, usually set four to six weeks apart. Some individuals have experienced permanent hair reduction, but there is limited data on how long hair reduction usually lasts. On the other hand, it has been observed that many individuals do require additional laser treatment after the initial set of treatments, especially where the treatment has been on large areas. Despite the many advertising claims, laser hair is not totally painless. Many consumers though, are able to undergo the procedure without requiring additional pain relief. Another popular advertising claim is that it guarantees 0% hair regrowth. This too, has not been fully established. Some candidates in particular, seem to just not respond to laser hair removal, even where they have dark hair and light skin. If incorrectly carried out, the procedure can result in burns, and skin damage and swelling. In a few cases, the laser treatment has actually resulted in more hair growing than was previously present. As a relatively new, and constantly improving technology, anyone wanting laser hair removal is best advised to thoroughly investigate the claims of the specific clinic they are considering using. The best clinics will be able to supply verifiable proof of their claims. Tips for hair removal by laser |
1. Before the laser hair removal, there must be made a preliminary investigation.
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