Abstract: Current Ruby lasers or Flashlamp light sources for non- invasive removal of unwanted hairs are limited to a treatment speed of approximately 25 cm$+2$//minute. Although adequate for facial treatments, that speed is too slow for treatment of backs and legs. We present an 18-month study of the use of a 5 pps Alexandrite laser (755 mm wavelength) operated at 20 - 40 J/cm$+2$/. The 2-millisecond pulse duration laser was used on over 200 patients. Results show less than 5 - 10% regrowth 3 months after the last treatment in over 90% of patients. The average number of necessary full area treatments is two followed by 1 - 4 touch-ups at intervals of 1$HLF - 3 months, depending on the body site. Treatment speed is 20 minutes for a back and less than 15 minutes per leg. !5
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