Comparing the Efficacy of Visible Light-Ultraviolet A1 Light Versus Narrowband-Ultraviolet B on Generalized Vitiligo

Inclusion Criteria: * Subjects ≥ 18 years of age with a diagnosis of generalized vitiligo * Subjects on a stable topical/oral regimen for the past 3 months and continuing on a stable regimen * Subjects able to understand the requirements of the study * Subjects able and willing to sign informed consent Exclusion Criteria: * Subjects on photosensitizing medications * Subjects receiving any concurrent phototherapy * Subjects who plan to use tanning parlors or expose themselves to excess sunlight * Subjects with known photosensitivity disorder * Subjects with apparent phototoxicity * Subjects with unstable vitiligo * Subjects currently using bleaching agents * Subjects who are pregnant, lactating, or planning on becoming pregnant * Subjects who in the opinion of the investigator/sub-investigator, are not appropriate candidates for this study