Frontiers Catenin Signaling Evokes Hair Follicle Senescence by Accelerating the Differentiation of Hair Follicle Mesenchymal Progenitors Crosstalk between androgen and Wnt catenin leads to changes of wool density in FGF5 knockout sheep Cell Death & Disease Crosstalk between androgen and Wnt catenin leads to changes of wool density in FGF5 knockout sheep Cell Death & Disease Peptides for Hair Growth: promising, but not magic., Hair growth is not controlled by one single factor. It depends on the hair cycle, follicle health, blood supply, inflammation, hormones,