Vitiligo is currently very difficult to treat with current treatment methods often being ineffective. Treatment with pseudocatalase and UVB exposure has shown to both repigment skin that has been affected and new areas from being effected. Treatment of vitiligo with a topical application of pseudocatalase and calcium in combination with short-term UVB exposure: a case study on 33 patients.
https://www.ncbi.nlm.nih.gov/pubmed?term=7599386
