The invention relates to a two-part plastic blank set for producing an active substance applicator for storing a unit dose of an active substance preparation and for dispensing said unit dose into the human nose, wherein the plastic blank set comprises a lower part and a top part separated from the lower part, wherein the lower part has a receiving space molding enclosed by a sealing edge and a one-part molded-on application tube extends from the receiving space molding, which application tube at the free end thereof is closed by a closure integrally molded in one piece over an attachment element, wherein the attachment element has a wall thickness of 0.1 – 0.5 mm, preferably 0.2 – 0.3 mm, and wherein the top part has a size in order, when laid on the lower part, to completely cover the holding space molding of the same, and has a sealing edge which can be connected in a sealing manner to the sealing edge of the lower part, wherein an attachment platelet extending from the respective sealing edge, preferably in the same plane as the sealing edge, is integrally molded on the top part or on the lower part. The invention further relates to an active substance applicator that can be produced therefrom.
