Evaluation of safety and efficacy of variable pulsed light in the treatment of unwanted hair in 77 volunteers.

Author: Nahavandi H, Neumann R, Holzer G, Knobler R

Author affiliation: Department of Dermatology, Division of Special and Environmental Dermatology, Medical University of Vienna, Vienna, Austria.

Publication date & source: 2008.03, J Eur Acad Dermatol Venereol., 22(3):311-5.

Publication type: Clinical Trial

BACKGROUND: Several studies on hair removal with intense pulsed light (IPL) and various laser sources have been done, but adequate data on long-term follow up are scarce. The present uncontrolled prospective pilot study evaluated safety and long-term efficacy of variable pulsed light (VPL) on hair removal in the face for medical and/or cosmetic indications. STUDY DESIGN/MATERIAL AND METHODS: The VPL system (Energist Ltd, UK) was used for the treatment of hypertrichosis in the face, mainly hirsutism, in 77 female volunteers. The minimum follow-up time after the last treatment was 9 months (mean: 12.74 +/- 2.87 months). RESULTS: Over 50% of hair clearance was observed in 68 (88.3%) of all cases. Erythema and leucotrichia were the most often associated side-effects encountered. Transient pigmentary changes were not reported. CONCLUSION: The VPL System presents as a relatively efficient and safe treatment alternative for long-term removal of unwanted hair. It seems to be particularly effective in fair-skinned patients with dark hair (skin types II-III-IV). Adverse effects were minimal and transient and, in no patient, significant enough to interrupt treatment.

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