This all depends on how much hair is present, how quickly it grows and what the cause of the hair growth is. We will establish this within a consultation and recommend a treatment plan specific to your needs as this is different from person to person. With the Apilus, once we treat the hair in the Anagen phase of hair growth, the hair will progressively get lighter in colour and strength until it will no longer grow again. The intervals in between treatments will be longer as the hair weakens.