A person back is covered in hair and shaving doesn't help at all, it just grows back... How long does laser hair removal last?
Unfortunately, there is no permanent way to remove hair. Typically, patients notice an improvement in the amount and texture of the hair after five treatments. Most offices offer a package of treatments, since multiple treatments are required to target all of the hairs in their growth phases. The results are not permanent but most patients are able to discontinue shaving and come in for occasional "touch ups" following the completion of their hair removal pacakge. Many patients only require touch ups a few times a year, but this can vary. When treated with the proper laser, you should notice a significant difference in how often you need to shave.