Applicator tip for cosmetic product, associated applicator and applicator assembly

An applicator assembly for cosmetic product, comprising:

• a receptacle comprising a body forming a container intended to contain the cosmetic product, and
• an applicator suitable for being fixed to the receptacle such that the applicator is housed within the container, the applicator comprising:
• an applicator tip comprising a fixing part for fixing to a support rod, and an application part for applying said product, said application part having at least two opposing rounded applicator faces that are hinged to said fixing part and extend as far as a distal end of the applicator in a main direction of longitudinal extension, said rounded applicator faces having a radius of curvature of less than 6 mm, said fixing part comprising a sleeve, said application part being connected to said sleeve by means of a flexible restriction, such that said application part is rotatable relative to said sleeve about at least two axes of an orthonormal coordinate system, said restriction being rounded and substantially concave in shape, and when viewed in a plane that is transverse to said main direction, said rounded shape having a radius of curvature of less than 6 mm, and wherein said restriction has a circular cross section, that is transverse to the main direction, that is substantially circular in shape and the diameter of which is at least equal to 1.5 mm,
• wherein said support rod is substantially cylindrical in shape and has a diameter D, said application part having a diameter d, said two diameters D, d being linked by the following formula:
• 0.89≤d/d≤0.99.