The History Of Laser Hair Removal

The History Of Laser Hair Removal



The History of​ Laser Hair Removal
The lasers used for​ laser hair removal developed from a​ theory instituted by the​ Nobel prize-winning physicists Albert Einstein and Max Planck .​
This theory,​ first introduced in​ the​ 1920s,​ defined stimulated emission,​ or​ laser .​
the​ word laser is​ an​ acronym for​ light amplification by stimulated emission of​ radiation .​
However,​ it​ wasn't until the​ 1960s that the​ first true laser was built and patented by Gordon Gould,​ an​ American physicist.
Laser hair removal devices of​ the​ 1960s sent out a​ continuous wavelength which caused damage to​ the​ surrounding skin tissue .​
In the​ late 1960s,​ Dr .​
Leon Goldman was the​ first to​ begin testing a​ ruby laser for​ hair removal .​
It was also in​ this time frame that the​ Q switch with developed for​ use with a​ laser .​
With the​ development of​ the​ Q switch it​ was possible to​ control the​ energy of​ the​ laser beam to​ be sent to​ out in​ controlled pulses .​
the​ Q switch worked much in​ the​ same way as​ a​ camera shutter.
Early devices for​ laser hair removal proved to​ be ineffective .​
In order to​ remove the​ hair follicle,​ there was severe damage to​ the​ surrounding skin area .​
The ruby laser,​ as​ well as​ the​ argon laser,​ are no longer used for​ laser hair removal.
Throughout the​ next several decades,​ researchers and physicists continued to​ experiment and test lasers for​ successful hair removal .​
It wasn't until the​ 1980s that the​ first laser was introduced as​ a​ safe and effective method of​ hair removal .​
This discovery actually happened by chance when scientists noted that birthmarks treated with certain types of​ lasers caused the​ hair in​ that area to​ disappear and not grow back .​

The FDA cleared the​ first laser for​ hair removal in​ 1995 .​
This laser,​ called the​ Soft Light,​ was a​ NeoDymium Yttrium Aluminum Garnets laser and was manufactured by Thermolaise .​
This laser was used with a​ chromophore of​ carbon-based lotion .​
After the​ skin was waxed,​ the​ carbon-based lotion would be rubbed onto the​ skin and enter the​ hair follicle .​
The beam of​ light produced by the​ laser would heat the​ carbon quickly and destroy the​ hair follicle .​
However,​ this type of​ laser treatment could easily damage nearby skin cells .​
Eventually,​ this type of​ laser hair removal proved to​ be less effective than targeting the​ natural pigmentation that existed in​ the​ skin.
In 1997,​ several types of​ laser hair removal devices were cleared by the​ F DA .​
One of​ these was the​ ruby laser,​ which used a​ shorter wavelength system .​
However,​ clinical research eventually showed that the​ laser did not produce damage far enough down the​ hair shaft to​ result in​ permanent hair loss .​
Researchers also found that if​ a​ t the​ ruby laser was used on​ people with dark or​ tan skin there was a​ high risk of​ hyperpigmentation .​
Other types of​ laser hair removal devices today include alexandrite,​ diode,​ and NeoDymium Yttrium Aluminum Garnets lasers.
Research and development in​ the​ area of​ laser hair removal are still in​ the​ early stages .​
However,​ continuing research,​ testing and development in​ this area continues to​ produce safer and more effective equipment.




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