The main reason people do it is to remove the vellus hairs on their faces, also known as peach fuzz. Peach fuzz can appear almost colorless, blonde, gray, or brown (or the same color as the hair on your head).
Everyone has these fine vellus hairs coating our bodies, and they are meant to add another layer of protection to the skin. But some people’s vellus hairs are thicker and more visible than others, and so they might want to have it removed.
Also, in a lot of cases, the vellus hair cannot be treated using a laser due to its color and thinness of the follicle.
This treatment is also used to exfoliate the skin and remove the outer layer of built-up dead skin cells from the epidermis.