Epila Laser Hair Removal

About Laser Hair Removal

Laser Hair Removal is based on the principle of selective photothermolysis, in which energy is delivered to the treatment area in such a manner as to maximize tissue damage to the hair follicle while sparing the skin and surrounding tissue. Melanin pigment makes a logical target chromophore, because it's most abundant in the hair bulb, which is believed to be the most important target for hair removal, much less abundant in epidermis, even in dark-skinned patients, and it absorbs well in the skin's "optical window" between 600-900nm.

Hair growth cycle: Hair growth occurs in cycles throughout an individual's lifetime. Active hair growth is called Anagen, and the length of the anagen phase determines the length of the hair. Scalp hairs may remain in the anagen for up to 3 years. Hair follicles then enter Catagen, a phase of regression which lasts a few weeks. The Telogen, or resting phase, can last for months, depending inversely on the number of actively growing hairs in the area, ie. the scalp has a shorter telogen phase than the chest. As anagen resumes, the hair follicle lengthens, the bulb descends deeper into the skin, and the old hair shaft is gradually shed. In humans, individual hair follicles are more or less independent, with most hairs in anagen at any given time.

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