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Home-use laser safe, effective for hair removal

Article-Home-use laser safe, effective for hair removal

Columbia, Mo. — Eight treatments with a home-use diode laser provide effective and safe permanent hair reduction one year after the last treatment, according to a new study.

Ronald G. Wheeland, M.D., University of Missouri, Columbia, evaluated the efficacy and safety of a home-use hair removal diode laser in 13 adults with naturally brown or black hair and Fitzpatrick skin types I to IV. Each participant received eight monthly at-home treatments. Three different fluences were used and a fourth control area was left untreated.

Dr. Wheeland reported observing significant hair reduction in the treated areas, which generally increased with each treatment and remained stable during follow-up. One month after the last treatment the mean hair count reduction was 47, 55 and 73 percent, respectively, for 7 J/cm², 12 J/cm² and 20 J/cm², compared to control. At one year the corresponding reductions were 44, 49 and 65 percent. Overall, 86 percent of patients experienced more than 30 percent hair reduction, and 38 percent had more than 80 percent hair reduction at one year after the last treatment.

Hair removal was complete for 31 percent, and of those who experienced regrowth, 69 percent reported that the hair was finer and lighter than before treatment. Mild, transient erythema and edema occurred but usually self-resolved within a few hours.

Dr. Wheeland disclosed financial ties to TRIA Beauty, which manufactures the laser used in the study. The findings were published in the September issue of Lasers in Surgery and Medicine.

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