Inclusion Criteria:  18 years of age or older Diagnosis of vitiligo Clinically stable vitiligo: defined as no new vitiligo patches and no enlargement of existing patches in previous 3 months. Able to provide voluntary, written, informed consent  Exclusion Criteria:  Clinically active vitiligo: defined as new vitiligo patches or enlargement of existing patches in previous 3 months Concurrent skin disease in the study area Immunocompromise Women of childbearing potential (WOCBP) who are unwilling to practice highly effective contraception prior to the initial dose/start of the first treatment, during the study, and for at least 12 weeks after the last dose.