Review of Microneedle Technology for Targeted Therapeutics in Vitiligo: Design Principles, Application Prospects.

Vitiligo is a chronic autoimmune disorder characterized by depigmented patches of the skin. The treatment of vitiligo remains challenging, partly owing to the lack of efficient drug delivery system. Microneedles (MNs), an ideal transdermal drug delivery system, have emerged as promising drug delivery platform for vitiligo. Recently, the emergence of novel MNs with increased biocompatibility, including hydrogel and hollow MNs, further enhance the translational value of MNs in the treatment of vitiligo. However, up-to-date review of these advancements remains lacking. This review aims to summarize the most recent studies of MN-based drug delivery systems for vitiligo, highlighting the translational potential of MNs as a therapeutic platform for the treatment of vitiligo in the near future.