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Laser hair removal is a procedure by which hair is removed from the body by utilizing a long pulse laser. Lasers are developed and designed from years of research. The laser parameters are carefully defined by studying the anatomy of the hair follicle and precisely matching the laser light and pulse duration to the follicle size, depth and location to inhibit the re-growth of the hair. There are three phases of hair growth: anagen, catagen, and telogen. Lasers can only target the anagen, or active, phase of the growth cycle. Anywhere from 20 to 85% of hair is in the anagne phase at any given time. This varies with different areas of the body. Regression begins in the catagen cycle. During the telogen stage, the follicle is “dormant” and prepares for the development of new hair. Because the laser can only treat hairs in the anagen phase, several treatments will be necessary for the desired result.
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