The invention concerns a mascara applicator comprising an applying head (1) provided with a plurality of hoops (4) defining an arc-shaped case internally empty for forming a mascara reserve co-operating with both the mascara housed in the adjacent hoops and the mascara dispensed by the head (1) in the spaces between the hoops (4) arranged in straight line. Such an applicator ensures a homogeneous make-up of the eyelashes over their whole surface.