There are still black spots remaining after using hair removal creams, this is due to the fact that hair removal creams do not remove the roots of the hair cleanly and remain inside the hair follicles, patients can be treated by laser hair removal. 1. The function principle of hair removal cream is to soften and remove the hair close to the root of the hair through the chemical ingredients it contains, but generally it cannot remove the root of the hair inside the hair follicle completely, so it looks like there will be black dots remaining. 2. If you want to completely remove the residue inside the hair follicle, you can do it by means of laser. Its treatment principle is mainly to apply light and heat energy to the hair follicle and destroy the hair follicle tissue, so that the hair loses its ability to grow, thus achieving the effect of hair removal. If patients want further treatment, it is recommended to visit regular hospitals or medical institutions for laser treatment under the operation of professional doctors.