PARTICULARLY EASY TO PRODUCE COSMETIC UNIT

A preform for a cosmetic unit filled with cosmetic mass has a container part which preferably forms a tube. The tube is open on the underside and is dimensioned in such a way that, after filling with the cosmetic mass to be stored by it, it can be closed by welding without being affected by the cosmetic mass and then forms to form the complete cosmetic container. The container part providing provides a subsequent removal opening on the upper side, and an applicator part, which consists at least of includes a stem fitted or capable of being fitted with an applicator element. The stem of the preform being is arranged partly inside the container part and partly projecting outwards through the subsequent removal opening. The stem is connected via a thin material bridge to the inner edge of the subsequent removal opening in such a way that it closes to close the latter tightly. The stem and the container part are an integral one-piece component.