Fayne RA, et al. – This research inspected the efficacy of laser and light treatments for hair reduction in Fitzpatrick skin types IV–VI (FST IV–VI). Longer wavelengths were found to be a crucial element of the treatment protocol. It suggested neodymium–doped yttrium aluminum garnet (Nd:YAG), diode, alexandrite, and ruby lasers along with certain intense pulsed light sources for safe hair reduction with minimal side effects, in the study cohort, so long as energy settings and wavelengths were appropriate. It was possible to achieve safe and effective hair reduction for patients with FST IV–VI, under proper treatment protocols and energy settings.