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The different Wavelengths for Laser Hair Removal

Talk about all types of laser treatments, CO2, Laser skin resurfracing, intense pulsed light (IPL), Fraxel, Active Fx, Erbium, LED, Yag, Smoothbeam, Pixel, and more.

The different Wavelengths for Laser Hair Removal

Postby stella0011 » Wed Mar 26, 2014 10:35 pm

Several wavelengths of laser energy have been used for hair removal, from visible light to near-infrared radiation. Different wavelengths works differently on different individuals. It is important to choose the right wavelengths for your skin tones.

These lasers are usually defined by the lasing medium used to create the wavelength.

488 or 514.5 nm
488 or 514.5 nm is referred to as Argon lasers. Argon lasers were the first to be tested as a means of hair removal. This uses a wavelength of 488 nanometers, which gives it a blue or cyan color. However, it is no longer used for laser hair removal, so don’t go to clinics that use an argon laser.

694 nm
694 nm is referred to as Ruby lasers. It works best for light and fine hair types. It cannot be used on people with darker skin, and tanned skin. It is really suitable for those with fair or white skin.

755 nm
These lasers are also called alexandrite lasers. Scientific researches show that 755 nm is the most effective laser wavelength for hair removal. However, this wavelength can only be used in light and medium brown skin tones. 755 nm lasers cause only minimal pain and typically do not require any numbing cream.

810 nm
These lasers is also called Diode lasers. 810 nm lasers are effective for slightly darker skin tones than 755 nm lasers. They are also slightly less effective than 755 nm lasers.

1064 nm
1064 nm lasers are also referred to as Nd:Yag lasers. 1064 nm lasers have the best safety profile for darker skin tones. This is the only laser that is recommended for dark skin tones. 1064 nm lasers are less effective than 755 or 810 lasers. However, if used properly, 1064 lasers have very minimal risk for discoloration, burns or scarring. Thus, it may take a few extra treatments with a 1064 laser, but is by far the safest.

IPL is not really a “laser. It is an electromagnetic radiation source emitting a wide wavelength spectrum from the ultraviolet rays (UV < 100nm) up to the infrared rays (IV >20000nm). In general, IPL can remove hair for light skin tones with a wavelength range from 695 to 1,200 nm and for darker skin tones with the wavelength range from 755 to 1,200 nm. IPL is not as safe or effective in brown skin tones. Ethnic patients should be very careful if they opt for IPL for hair removal.

The wavelength is an important consideration. This longer wavelength enables the light to penetrate deeper and is theoretically safer than shorter wavelength lasers because it can better avoid the melanin pigment in the skin's epidermis. Using a longer laser wavelength might also help protect dark skin.
Last edited by MissJ521@aol.com on Thu Mar 27, 2014 8:46 am, edited 1 time in total.
Reason: Link to specific laser company promoted in post removed.
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Re: The different Wavelengths for Laser Hair Removal

Postby sued » Fri Apr 25, 2014 7:37 pm

Thanks Stella! That's really helpful!
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