Korean J Dermatol.  2008 Oct;46(10):1369-1375.

The Efficacy of DuaLight(TM) Treatment for Localized Vitiligo

  • 1Department of Dermatology, Busan Paik Hospital, College of Medicine, Inje University, Korea. skindoctor@paran.com
  • 2Go Woon Se Sang Kim Yang Che's Skin Clinic, Busan, Korea.
  • 3Ulsan KangNam Skin Clinic, Ulsan, Korea.


DuaLight(TM) is a recently developed phototherapeutic device that is used for targeted phototherapy. However, the efficacy of DuaLight(TM) therapy for vitiligo has not been evaluated nor has it been reported on in the Korean medical literature.
This study was conducted to evaluate the efficacy of DuaLight(TM) therapy for treating localized vitiligo and we wanted to determine the clinical parameters that could affect the therapeutic outcome.
Eighty-three lesions from thirty-eight patients were treated by using DuaLight(TM) once or twice a week. The repigmentation grade of each treated lesion was evaluated on a 5-point scale from 0 (no repigmentation), 1 (1~24%), 2 (25~49%), 3 (50~74%), to 4 (75~100%).
Thirty-four lesions of the 83 lesions (40.9%) improved to 50% repigmentation after DuaLight(TM) therapy. The clinical parameters that affected the therapeutic outcome were the lesions' anatomical location and the clinical subtype of vitiligo. Yet a history of previous treatment and the skin type did not affect the therapeutic result. Perilesional hyperpigmentation (47.4%) was the most common side effect, but the other adverse effects were limited and transient.
DuaLight(TM) therapy is an effective, safe therapeutic modality for localized vitiligo. However, similar to other non-surgical therapeutic modalities, the therapeutic outcome is mainly dependent on the anatomical location.


Clinical parameter; DuaLight(TM) therapy; Localized vitiligo; Targeted phototherapy
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