The length of a laser hair removal appointment will vary depending on the area of the body that the hair is being removed from. Small areas, such as the upper lip, can be done in a matter of minutes, whereas larger areas, such as the legs or back, can take an hour or more. After the initial treatment, you will see a reduction in the number of hairs in the affected area. You may also notice hair shedding from the area for a few days after treatment. The treatment itself will last anywhere from two to eight weeks before patients start seeing hair growing back in, but in reduced quantities. Patients will require additional follow-up treatments to see significant, near-permanent results with their hair removal. It will depend on the individual cases and how the patient responds to the treatment, but on average, it takes three to eight sessions to see drastic results and a significant decrease in the amount of hair growing back each time.