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How laser hair removal treatment works?
Author :
hairlaserremoval.co.uk
11
Basic
facts
for laser
hair removal
Laser hair removal is application of laser or Ipl light for hair removal. The work principle of laser hair removal is Selective Photothermolysis. The laser emits a pulse, which travels through the skin and is absorbed by the pigment (melanin) in the hair, the light skin around it reflects the light. The laser then heats up the hair's shaft and root, destroying it without affecting the skin or follicle. Then the hair is prevented to regrow any further.
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There are three different stages in the life of a hair, the growth phase (Anagen), the resting phase (Catagen) and the falling-out phase (Telogen). At any given time, about 85% of your hair is in the Anagen. It should be noted that, The hairs are affected by the laser only during the Anagen. The laser can heat up and destroy the hair because the follicle is closest to the skin and the laser can reach the follicle during the Anagen. The other of hair phases are beyond the stage.
The laser light must to be on long enough to heat the hair, but not too long to allow that heat to spread to the surrounding skin causing damage. So, it is more difficult to avoid injuring the surface of the skin while treating the hair for the people which has dark skin.
The basic
facts
for laser
hair removal
How do I determine my
fitzpatrick skin type?