The invention relates to an applicator tip (10) for cosmetic product, said applicator tip (10) comprising a fixing part for fixing to a support rod, and an application part (20, 20′) for applying said product, said application part (20, 20′) having at least two opposing rounded applicator faces (F1, F2) that are hinged to said fixing part (14) and extend as far as a distal end (16) of the applicator (10), said rounded faces (F1, F2) having a radius of curvature (R1, R2) of less than 6 mm.The invention also relates to an associated applicator and applicator assembly.