Filling assembly for the manufacturing of a packaging and dispensing device for dual content

A filling assembly, comprising:

• a container for storing a first fluid composition, said container comprising an opening;
• a pipette removably inserted in the container through the opening, said pipette having a first dispensing end and a second open end configured to be assembled to a pressure supply device;
• and
• a plug removably assembled to the dispensing end of the pipette, said assembled pipette and plug defining an inner compartment for temporarily storing a second fluid composition isolated from the first fluid composition,
• the filling assembly being characterized in that said filling assembly comprises a holding element configured to hold the pipette inside the container in a predetermined position while maintaining at least one aperture within the opening, said aperture allowing for fluid communication between the outside and the inside of the container, so that the container and the pipette may be filled simultaneously with the first and second fluid compositions respectively, before assembling the second open end of the pipette with the pressure supply device.