This invention relates to a cosmetic product applicator, including: an application member (30) comprising an application element (42); and a gripping member (32) hinged to the application member, with the gripping member being mobile with respect to the application member around an axis of rotation (38), between a first and a second stable configurations. The application member and the gripping member respectively comprise first and second (75) guiding elements, configured to slide against one another during a rotation of the gripping member with respect to the application member, with each one of the first and second stable configurations corresponding to a minimum of elastic stress between said first and second guiding elements, said elastic stress being considered in the radial direction with respect to the axis of rotation (38).