Stopper for the neck of a fluid product reservoir

A perfume dispenser comprising:

• a perfume reservoir (4) comprising a neck (40) forming an opening, the reservoir being substantially rigid;
• and
• a stopper (1) mounted on the neck (40) of the reservoir (4), said stopper comprising a fastener collar (2) and a closure member (3), the collar being fastened on the neck of the reservoir, the collar (2) defining an orifice (24), and the closure member (3) being suitable for closing said orifice (24), the closure member (3) including a perfume extractor and/or applicator element (31) that extends through the collar (2), said collar (2) and said closure member (3) being made as a single part, being connected together via a material bridge (23) that breaks during first use, the orifice (24) of the collar (2) being defined by a peripheral edge (200) that is connected via said material bridge (23) to a junction surface (310) of the extractor and/or applicator element (31), the stopper being characterized in that said peripheral edge (200) is suitable for coming into sealing contact against a sealing surface (312) of said extractor and/or applicator element (31) after said material bridge (23) has been broken.