research 571 Human Hair Follicles can “Taste”: Stimulation of the Bitter Taste Receptor TAS2R4 Inhibits Hair Growth Ex Vivo by Up-Regulating TGF-β2
This study reports that activating the bitter taste receptor TAS2R4 with rebaudioside A can inhibit hair growth in human scalp hair follicles by promoting catagen through TGF-β pathway activation.