KY19382 is a small-molecule investigational compound that functions as a selective activator of the Wnt/β-catenin signaling pathway, primarily by inhibiting the activity of CXXC-type zinc finger protein 5 (CXXC5), a negative regulator of this pathway. By blocking the interaction between CXXC5 and the Dishevelled (DVL) protein, KY19382 promotes β-catenin stabilization and nuclear translocation, thereby enhancing hair follicle regeneration and growth. In preclinical studies, it has demonstrated potent hair-inducing activity, showing efficacy in both in vitro and in vivo models of androgenetic alopecia.
