The principle of laser hair removal revolves around
principle of light radiation. The concept of laser hair removal is simple to understand. Laser Hair Removal involves
use of light energy for
removal of hair. The basic principle of laser hair removal is that
dark objects absorb light. The laser will selectively target hair or
hair root and burn it.
This is possible only when
target area is darker than
surrounding skin. The dark target area is called chromophore and it can be created artificially or is found naturally on
skin.
Natural chromophores are melanin and hemoglobin. Melanin is a pigment that gives color to
hair. Hemoglobin is what gives red color to
blood. Carbon is an artificial chromophore.
Carbon is introduced into
skin by rubbing a carbon- based lotion into
skin after waxing. The principle of laser hair removal is selective photothermolysis. The laser hair removal treatment is also called phototricholysis or photoepilation.
There are certain technical parameters that determine
effectiveness of
laser hair removal process.
* Pulse widths - Studies have established that longer pulse widths are more effective for laser hair removal process and have fewer side effects.
* Width of
laser beam - The width of
laser beam determines
efficacy of laser hair removal process. The width of
laser beam should be four times as wide as
depth of
target.