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Laser Hair Removal
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Laser hair removal is a technique used to remove unwanted body and facial hair. It also cuts down on new hair growth. The procedure is usually done by dermatologists and plastic surgeons or their physician's assistants. The laser procedure is a safe and effective way to remove hair. It is safe for all skin types and for dark hairs and sometimes lighter hairs.
You do not need to have anesthesia for laser hair removal. Topical anesthetic cream can be used or the patient can undergo sedation to control the pain. It takes up to four hours in order to complete a full body hair removal. You can go home the same day following the procedure. There is moderate discomfort when having the procedure. You can expect a temporary burning sensation while the treatment is happening. Redness and swelling after the treatment lasts up to 24 hours. Many treatments are generally done up to 6-8 separate treatments. The procedure can last up to several months to several years before the procedure's effects wears off.
The laser hair removal method does not permanently take off hair. Instead it provides a long period of time in which you have no hair. After that, the hair procedure gradually wears off and hair begins to grow again. If you have the procedure many times over, you can get long term hair removal.
The laser beam passes through the skin and uses intense heat to damage the hair follicle. Hair color and skin type make a difference in the success of hair removal. Dark hair against a lighter background appears to work the best.
Risks associated with laser hair removal include skin that is excessively darkened or lightened as a result of the procedure. You can get blistering of the skin, scar tissue or scabbing of the skin from the procedure. You can also get growth of finer hair than the original hair removed.
The laser hair removal procedure is also called laser epilation. It is also called phototricholysis or photoepilation. It began in the 1970s. Laser hair removal really took off in the 1990s and the first time it was published in medical journals was in 1998. Other procedures done in place of laser hair removal include epilation via intense pulsed light therapy, which uses a range of light wavelengths in a great intensity to remove hair. Xenon flash lamps are used to undergo this procedure. Laser light hair removal uses a single wavelength of light.
The principles behind the procedure of laser hair removal include the properties of selective photothermolysis. The laser procedure selectively heat destroys hair follicles which are darker in color than the regular skin. It also attacks skin which is high in melanin. The lighter skin itself is not damaged in any way and the hair follicles fall apart, causing the hair to cease to take hold within the skin. Melanin is the primary target of laser hair removal procedures. There are two types of melanin in the hair. There is eumelanin that gives black or brown hair and there is pheomelanin, which makes hair blonde or red. Only eumelanin is targeted and can be removed. The blonde or red hair is not touched. Coarse hair is also primarily affected by laser hair removal and hair that is fine is more difficult to get rid of, if at all.
Laser hair removal is different from the traditional electrolysis, which has been in place for more than a hundred years. Electrolysis uses electrical current to get rid of all types of hair. Light colored and thin hair can be removed using electrolysis when it cannot be used in laser hair removal. Laser hair removal is a lot faster than electrolysis, which must be done one hair at a time.
There are several types of hair removal devices. The Alexandrite hair removal system is effective only on pale skin. The pulsed diode array system is for medium skin types or pale skin types. The Nd:YAG laser system is used for treating all skin types. The most important thing to consider is the pulse width of the laser. Longer pulse widths are used on all skin types while shorter pulse widths are used for paler skin. The width of the laser beam determines the amount of skin affected by the laser.