<p>[PROBLEMS] A cosmetic applicator in which bristles are prevented from becoming loose and spreading. [MEANS FOR SOLVING PROBLEMS] The cosmetic applicator has a shaft section (2) and bristles (3a). The shaft section (2) has one or more grooves (2d) formed in the outer peripheral surface of a head of a circular column-shaped shaft body (2a) so as to extend in the longitudinal direction of the shaft section. The bristles (3a) are arranged at least in one row in the longitudinal direction and protruding from the inside of the grooves (2d) beyond the outer peripheral surface of the head of the shaft body (2a).</p>
