Laser hair removal usually requires 3-5 treatments to achieve satisfactory hair removal results. Whether the hair grows again after laser hair removal is related to the patient’s body type, hair area, hair thickness and so on. Usually, the thicker the hair, the less the number of hair removal, the better the effect and the smaller the regrowth rate; the finer the hair, the more the number of hair removal and the relatively larger the regrowth rate. After laser hair removal, there will still be fluffy, fine small sweat hair and small fuzz present, but not thick and black. After 3-5 hair removal treatments, you can basically achieve the so-called permanent loss of hair. Individuals may also have sparse, fine hairs grow back after a few years, but when they do, the number of hairs will be significantly reduced and significantly different from before. After a small amount of hair is found to grow back, laser hair removal can be performed again to achieve satisfactory results. Some parts of the hair is really not easy to remove, such as male beard, women’s lip hair, this kind of hair and sex hormone levels have a relationship, subject to hormonal regulation, need to increase the number of hair removal, the effect will be more obvious. Other parts such as armpit hair, chest hair, abdominal hair, including the hair on the limbs, these parts of the hair after a course of laser hair removal, the effect is more durable.