How Safe Laser Hair Removal Works

How Safe Laser Hair Removal Works
The word laser is​ an acronym for​ light amplification by stimulated emission of​ radiation. Its a​ device that creates and amplifies a​ narrow,​ intense beam of​ coherent light light that is​ of​ one frequency. Lasers are commonly used in​ medical science and more recently in​ cosmetic procedures like hair removal.
In a​ laser,​ the​ atoms or​ molecules of​ a​ crystal,​ such as​ ruby or​ garnet,​ are excited in​ what is​ called the​ laser cavity so that more of​ them are at​ higher energy levels than are at​ lower energy levels.
Reflective surfaces at​ both ends of​ the​ cavity permit energy to​ reflect back and forth,​ building up the​ power in​ each passage.
With laser hair removal the​ laser penetrates the​ top layer of​ dermis with a​ specific wavelength of​ light as​ opposed to​ multiple wavelengths used in​ Intense Pulse Light treatments,​ targeting melanin in​ the​ hair follicle.
A hair follicle is​ a​ sac from which a​ hair grows and into which the​ sebaceous oil glands open. the​ follicle is​ lined by cells derived from the​ epidermal outside layer of​ the​ skin.
Each air follicle normally goes through a​ fiveyear cycle of​ growth and rest,​ with about 90 percent of​ the​ follicles growing hair at​ any one time,​ averaging about 15 cm of​ growth per year.
Also called pigment,​ melanin is​ a​ substance that gives the​ skin and hair its natural color. it​ also gives color to​ the​ iris of​ the​ eye,​ feathers,​ and scales.
In humans,​ those with darker skin have higher amounts of​ melanin. By contrast,​ those with less pigment have lighter or​ more fair skin coloring.
Melanin provides many benefits to​ human beings. One of​ the​ most recognised benefits involves ultraviolet rays of​ the​ sun.
Melanin provides a​ natural protection against the​ harmful effects of​ these rays. However,​ it​ does not provide complete protection from the​ sun,​ and individuals with darker skin tones are still at​ risk from the​ suns damaging rays.
When the​ laser hits the​ melanin it​ damages and destroys the​ regrowth potential of​ the​ hair follicle. the​ specific wave length of​ light 755nm enhances the​ accuracy of​ the​ treatment and gives far superior results. at​ 755 nanometres the​ laser can achieve the​ best penetration into the​ hair follicle. for​ people with dark hair and light skin,​ this is​ the​ ultimate in​ hair reduction.
The new 755 nanometre hair removal laser uses a​ special cooling system that lowers the​ temperature of​ the​ skin during,​ and after,​ laser exposure.
This is​ why the​ treatment is​ regarded as​ a​ lot less painful than other treatments. Some patients have compared the​ treatment to​ the​ sensation of​ the​ snap of​ a​ rubber band.
For your safety,​ the​ ownership and operation of​ lasers in​ most Australian States is​ highly regulated. Clinics need to​ have an owners license,​ clinic license,​ safety officers,​ licensed operators and licensed equipment,​ which is​ why very few clinics are fully licensed.

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