Abstract: Device for dispensing a fluid product, having a body, a reservoir containing one or two doses of a fluid product, the reservoir having a stopper that closes off the reservoir in a sealed manner before actuation, a dispensing head provided with a dispensing orifice, and an actuating mechanism for dispensing at least a portion of the fluid product through the dispensing orifice during actuation. The dispensing head receives an insert having a channel that connects, during actuation, the reservoir to the dispensing orifice. The stopper has a hollow axial sleeve suitable for sliding within the reservoir during actuation, the hollow axial sleeve being closed off before actuation by a deformable radial membrane. The insert has a point suitable for piercing the membrane of the stopper at the time of actuation, and a piston suitable for sliding in a sealed manner within the reservoir during actuation.