The invention relates to a method for the surface treatment of a fluid product dispensing device. The method comprises a step in which at least one surface to be treated of at least one part of the device is subjected to ion implantation modification using multi energy and multi charged ion beams said modified surface to be treated having anti friction properties. The multi charged ions are selected from among helium (He) nitrogen (N) oxygen (O) neon (Ne) argon (Ar) krypton (Kr) xenon (Xe) and the ion implantation is performed at a depth of between 0 and 3 µm.
