Most people need at least 6-8 initial treatments spaced 6-10 weeks apart. This is because hair grows in 3 phases and is killed in the first “anagen” active growing phase. Several treatments are needed to target ALL hair in the active growth phase. Approximately 6-10 weeks after every treatment, additional treatment is required to eliminate the hairs that came out of the dormant phase and are now active. After 6-8 treatments or so, patients should experience a considerable percentage of hair reduction. Depending upon hair type and genetic factors, some clients may require additional treatments beyond these initial treatments. If it seems like the treatments are not working after 6-8 treatments, patients should look into possible underlying reasons (see Question #9 below).
Usually, treatments are spaced 6-8 weeks apart to start, and gradually move to 8-10 weeks apart after the initial 2-3 treatments. Instead of following an arbitrary schedule, wait until you have experienced shedding of the treated hairs (should complete within 2-3.5 weeks) and you see enough hair come in after the hairfree period to justify the next treatment.