Most body parts on the surface of the human body have hairs. Known as millia, the finest is 0.005mm Hair, eyelashes, eyebrows, armpit hair, chest hair, beard, nose hair and limbs are coarser, the thickest up to 0.6mm . Hair growth has a cycle The hair on the epidermis has a growth period, regression and resting period, the hair is also life. Metabolic renewal is more than. Every day, about 100 normal hairs are shed, and new hairs grow to replenish them. Hair is cylindrical in shape, the center is the medulla oblongata, in which there are melanin cells, melanin makes the hair black. Hair is divided into a hair shaft and a hair follicle. The hair shaft is exposed on the surface of the skin and the follicle is deep in the epidermis. The enlarged part underneath is called the hair papilla, and the center part is called the hair bulb, which is the basis for hair renewal and growth. Hair removal has no effect on the human body Some human hair is too much and too heavy or women’s thirst for beauty, body hair is heavier than the human body androgen secretion of the performance of strong. It is a secondary sexual characteristic of the human body. Need to carry out hair removal. Hair on the skin only decorative role (such as hair) in addition to no other excessive physiological function. So from the point of view of hair removal itself, there is no adverse effect on the human skin, do not need to have too much concern. Destroying the hair papilla is the key According to the structure of sweat hair, to have a good hair pulling effect, not only to remove the root of the hair, but also at the same time to destroy the hair papilla, in order to prevent it from growing new hairs. Laser hair removal is generally based on the principle of selective thermodynamic action, using the latest laser technology to remove hair. The beam of light emitted by the laser machine penetrates the superficial layers of the skin and is eventually absorbed by the hair follicle. Through the selective absorption of the laser energy, the hair follicle is destroyed and no more hair can grow, without damaging the surrounding tissues. The process of laser hair removal is simple and fast, and generally leaves no scars after treatment. And nowadays, with the freezing point technology, the process of hair removal is virtually painless and free of skin irritation.