Fluid product reservoir and dispenser incorporating such a reservoir

A fluid dispenser comprising a dispenser member associated with a fluid reservoir;

• the fluid reservoir comprising a neck that defines an opening in which a stopper is engaged, the stopper is movable by sliding in the neck between a high closed initial position in which the stopper hermetically closes the opening of the neck, and a low open final position in which at least one feed passage puts the inside of the reservoir into communications with the outside;
• the dispenser member including a thrust element that comes into contact with the stopper so as to move the stopper from the closed initial position to the open final position;
• the dispenser member includes a body that defines a fluid inlet, the body being received in a fastener ring that includes fastener means for fastening around the neck of the reservoir, the thrust element being formed by the fastener ring, and the body extending into the stopper;
• wherein the stopper includes an annular bushing and the at least one feed passage extends through the bushing;
• wherein the stopper includes a dish that extends downwards from the bushing, and the dish defines an internal reception space;
• wherein the body extends inside the internal reception space such that the dish surrounds at least a portion of the body.