unwanted hair is a troubled man with a universal Beauty problems, the traditional hair removal method is not ideal, in order to effective, convenient and safe removal of unwanted hair surface, based on principles of selective photothermolysis has been designed a variety of intense pulsed laser system and lighting system, so that people receiving large hair removal treatment significantly reduced discomfort, and to scar formation and other complications were reduced to a minimum. The use of modern optical technology has been able to achieve permanent hair removal reduction purposes.
most of the surface of the body have hair, only the palm of your hand, metatarsal, (toe) and the distal side of the back foot The following side of the ankle foot, lips, nipples, navel, penis, inside the foreskin, clitoris, labia minora and labia majora glabrous. According to the growth of hair and texture of hair can be divided into:
① lanugo (1anugo hair), the growth in the womb, thin and soft, no medulla and pigment, usually in the 4 weeks off, but in some genetic diseases, such as an increase in disease in lanugo, lanugo be there for life;
② vellus hair (villus hair),, soft but not medulla, occasionally pigmented, often no more than 2cm;
③ terminal hair (terminal hair), long, thick, with medulla and pigment, such as hair, eyelashes, eyebrows, etc., in which pubic hair , armpit hair, etc. in adolescence grow after androgen stimulation, male, female pubic hair between the time there are some differences, men aged 13-15 in general, women in the 11-13 years old, usually in the pubic hair and armpit hair start grow after 2 years to appear.
hair (hair) by the diagonalization of keratinocyte cells. In other parts of the skin called the hair shaft, is located outside the part of the skin called the hair root (hair root), hair root end of the enlarged part of said hair ball (hair bulb), hair bulb, said recess bottom hair milk (hairpapilla), including connective tissue , nerve endings and blood vessels, provide nutrition for the hair bulb. Near the nipple at the lower hair bulb, said hair matrix (matrix), is the hair and hair follicles in the growing area, the equivalent of the spinous layer and basal layer of epidermis, and melanocytes. The hair, for example, hair-like arrangement of the concentric circles of cells. Can be divided into three levels:
① medulla: in the hair of the central layer of the shrinkage of 2-3 cubic keratinocytes. Terminal and vellus hair no hair medulla;
② cortex: the main body of Mao, prism layers of keratinocytes by the composition of a large number of cells containing pigment granules.
③ the cuticle, the hair thin, transparent layer of the surface of keratinocytes, such as overlapping like roof tiles.
hair follicles in the dermis and subcutaneous tissue, the tissue can be divided into upper and lower half. The upper consists of two parts:
① infundibulum: from hair follicles to sebaceous glands, mouth opening
② isthmus: from the sebaceous gland opening Zhili Mao muscle attachment
the following paragraph from the stem and bulb composition. From within the hair follicle root sheath, outer root sheath and connective tissue sheath composition. The first two root sheath cells and connective tissue sheath of epidermal origin are derived from the dermis. Inner root sheath (inner-root sheath) from the inside out into a small leather sheath, Huxley layer (Huxley , s layer) and the Henle layer (Henle , s layer). Sheath cuticle and the cuticle the same structure, with each other closely studded with jagged protrusions so that fixing the hair in the skin. Outer root sheath (outer root sheath) by several layers of cells, the equivalent of acanthosis and basal layer. Connective tissue sheath (dermal root shealh) of the inner glass membrane, equivalent to the thickened basement membrane zone; the middle is a dense connective tissue, the outer layer of loose connective tissue; with the surrounding connective tissue.
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