Removal of Bikini Hair Using a Rapid 810-nm Diode Laser

The efficacy, safety, and treatment time of a new, high-speed, very long-pulsed (90–200 ms) 810-nm diode laser have been evaluated for the rapid removal of bikini hair. Study participants (n520) received 5 treatments at 6-week intervals. Hairs were counted from pretreatment and posttreatment photographs. Among the 16 people who completed the study, the median hair count at 6 months after the fifth treatment was significantly lower than the median pretreatment hair count (P,.0001). The median hair count reduction fractions increased after the second treatment and continued to increase at 3- and at 6-month follow-up visits, indicating continual improvement. Hair count reduction fractions achieved a median of 87.6% (mean584.4%) at 6 months after the final treatment. Adverse effects were not observed, and treatment time was short. The 810-nm diode laser has been observed to safely and efficiently remove unwanted hair from the bikini area.