After the formation of stable baldness, that is, the extent of baldness has ceased to develop and is in a stable phase. Some people may grow hair a little earlier, some a little later, and some may not grow hair for more than a year. This time is not absolute, but the average is usually 3 months, because the normal cycle of hair follicle formation, hair follicle growth, and hair growth, that is, the hair that can be seen by the naked eye, is about 3 months. This aspect needs to follow or follow the natural law of hair metabolism itself.