Many people choose to remove excess hair from their body and face for cosmetic, social, or medical reasons. Excessive hair growth is mainly seen in conditions like hirsutism and hypertrichosis. Hirsutism refers to the appearance or increase of hair in androgen-dependent areas in women. Hypertrichosis refers to increased hair in any area of the body in men or women. There are many traditional hair removal methods, such as waxing, shaving, tweezing, and chemical hair removal. However, these methods can only temporarily remove the hair shaft on the surface of the skin, leaving the deep hair follicles intact, and the hair regenerates quickly. Electrolysis and hot wax can effectively destroy hair follicles and prevent hair regeneration. Although these two methods can remove hair permanently, they are cumbersome, time-consuming, inefficient, and may leave scars, so they are rarely used now.