The present invention generally relates to systems and methods for treating vitiligo. In one set of embodiments, the present invention comprises a composition comprising pyruvic acid and/or a pyruvate salt. The composition may be formulated for application to the skin of a subject, for instance, as a gel, lotion, cream, ointment, soap, or stick. In some cases, the composition may comprise a lecithin, such as phosphatidylcholine. In certain embodiments, the lecithin is present as a liquid crystal, and/or in liposomes, micelles, or other vesicles. Other aspects of the present invention are generally directed to methods of making or using such compositions, methods of promoting such compositions, kits including such compositions, or the like.
