A droplet dispenser for dispensing cosmetic or pharmaceutical liquids in the form of individual droplets, having a medium reservoir with a first and second medium chambers, which are isolated from one another for separately storing two media. The medium chambers are connectable to produce a combined liquid. The droplet dispenser has a discharging opening and, downstream of the discharging opening, a droplet forming contour in order to create droplets which detach from the droplet forming contour as soon as the droplets have reached a defined volume. The droplet dispenser has a pump device between the medium reservoir and the discharging opening, wherein the pump device has a variable-volume pump chamber for delivering combined liquid. The pump device has an inlet valve on the entry side and an outlet valve on the exit side.

Provided is a trigger dispensing head applicable to a bottle of a trigger dispensing device having a cylinder chamber, a main vent passage, a sleeve, a secondary vent passage, a manually-operable piston, a suction duct, and a dispensing duct. The sleeve is provided with an annular inner sleeve wall delimiting a pressure chamber, and an annular outer sleeve wall externally spaced from the annular inner sleeve wall.

A trigger dispensing head applicable to a bottle of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a main vent passageway, a sleeve, a secondary vent passageway, an axially slidable piston, a suction duct, and a dispensing duct. The sleeve is rotatable by a user between an angular working position in which the main vent passageway is in fluid communication with the secondary vent passageway and an angular rest position, in which the main vent passageway is fluidically separated from the secondary vent passageway.

A trigger head for a dispensing device for a liquid product that is usable an upright configuration and an upside down configuration has an attachment having an attachment suction chamber, a multifunction chamber and an auxiliary passage. The trigger head has multifunction valves operating in the multifunction chamber, which, in the upright configuration, close a communication between the multifunction chamber and a bottle compartment of a bottle of the dispensing device and, in the upside down configuration, close a communication between a multifunction passage of the multifunction chamber and a venting conduit of the trigger head.

A frame for a trigger head of a dispensing device for a liquid product has a frame base, a cylindrical pressure chamber, an intake duct, an outlet duct, a dispensing duct, and a shoulder consisting of a shoulder wall protruding from a rear zone of the frame base to form a backing for a hand of a user gripping the trigger head while dispensing the liquid product. The shoulder has a rear coupling for a shell of the trigger head.