Rio Salon Laser LAHRC3000 Mode D'emploi page 8

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H O W D O L A S E R S W O R K ?
Lasers deliver an intense beam of light which are made up of a single wavelength or colour. Skin is essentially transparent to light in the wavelength
range of 600-1100nm (nano meters), while melanin containing structures will absorb laser energy of this wavelength. It is therefore possible to
target the hair follicle which has a concentration of melanin without affecting the surrounding area.
The light energy absorbed by the melanin pigment results in the rapid heating up of the hair follicle. This heat destroys the cells (papilla) responsible
for hair growth. If adequate heating is achieved, then the follicle is permanently disabled resulting in a permanent reduction in hair growth.
S U I T A B L E S K I N T Y P E S
Melanin in the epidermis also absorbs the energy and limits the depth of penetration of the laser light into the skin. Using a light wavelength
of 808nm enables treatment of relatively dark skin as well as fair-skin types. However, laser hair treatment is not suitable for Afro-Caribbean
or black skin complexions. Laser treatment is also ineffective in removal of white or grey hair. Electrolysis should be considered as an
alternative treatment.
As a guide, skin colours are classified by the Fitzpatrick skin phototypes as described in the table opposite.
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