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.