Aplicador de máscara

The present invention relates to a brush (8) for applying a cosmetic product to the eyelashes and/or eyebrows, comprising: a core (10) of plastic material, having a longitudinal axis, spikes (11, 13) carried by the core, including at least a first row of spikes extending longitudinally, this row comprising a series of at least four consecutive spikes positioned at respective abscissae x1 to x4 along the longitudinal axis, with d1=x2−x1, d2=X3−x2, d3=x4−X3 and d1, d2 and d3 being different in pairs.