Threading is an ancient method of hair removal. It is popular in Persian culture where it is called Bande Abru ("Abru" means eyebrow, and "Band" is the thread). Threading the entire face is widely spread amongst Iranians, but it was originally practiced when a woman was getting married or during special occasions. In ancient Persia, threading was a sign that a girl had reached adulthood and become a woman. It has also gained popularity in
Showing posts with label laser hair removal. Show all posts
Showing posts with label laser hair removal. Show all posts
Thursday, September 16, 2010
Saturday, September 4, 2010
Mechanism of Laser Hair Removal
The primary principle behind laser hair removal is selective photothermolysis (SPTL). Lasers can cause localized damage by selectively heating dark target matter, (melanin), in the area that causes hair growth, (the follicle), while not heating the rest of the skin. Light is absorbed by dark objects, so laser energy can be absorbed by dark material in the
Friday, September 3, 2010
Laser hair removal
Epilation by laser was performed experimentally for about 20 years before it became commercially available in the mid 1970s. Intense Pulsed Light (IPL) epilators, though technically not a laser, use xenon flash lamps that emit full spectrum light.
Laser and light-based methods, sometimes called phototricholysis or photoepilation, are now most commonly referred to
Laser and light-based methods, sometimes called phototricholysis or photoepilation, are now most commonly referred to
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