Packaging specially designed to make up a unit comprising such a packaging containing an applicator and a product P to be applied, said packaging comprising a shell and a closing piece, the shell, thermoformed and having a certain overall rigidity, comprising a peripheral edge to be joined to the closing piece by welding and a recessed, open median part which comprises: - a wide part forming a reservoir designed to receive the product P to be applied and an application element forming part of the applicator, - a narrow part terminating the part being part of the reservoir, forming an orifice to provide a passage for the application element, for dispensing of the product P to be applied and wiping of the application element charged with product P to be applied, - a part (11 a) being part of a holder housing in which an internal handling part of the applicator is placed without any possibility of substantial relative rotation, - an elongate trough disposed between the narrow part being part of the orifice providing a passage and for dispensing and wiping and the part (11 a) being part of the holder housing, the internal face of the trough being part of an elongate conduit for metering and dealing the product P to be applied on the application element, the external face of the trough being part of a gripping zone of the packaging to enable it to be opened by the user, the shell further comprising a frangible line or cross-sectional zone of lower strength to enable the packaging to be opened, which frangible line or cross-sectional zone is located at a distance from the narrow part being part of an orifice between the trough and the part (11 a) being part of the holder housing, the closing piece being joined to the peripheral joining edge of the shell by welding providing the requisite seal, the packaging comprising, in the following order and in a communicating arrangement: - the reservoir formed by the wide part of the shell and a corresponding closing part of the closing piece, - the orifice providing a passage and for dispensing and wiping formed by the narrow part of the shell and a corresponding closing part of the closing piece, - the metering and dealing conduit formed by the elongate trough of the shell and a corresponding closing part of the closing piece, and - the holder housing formed by the corresponding part (11 a) of the shell and a corresponding closing part of the closing piece, the packaging comprising a gripping zone to enable it to be opened by the user, formed by the external face of the trough, the external part of the closing part facing the closing piece and the adjoining parts of the edges (6, 7). - a wide part forming a reservoir designed to receive the product P to be applied and an application element forming part of the applicator, - a narrow part terminating the part being part of the reservoir, forming an orifice to provide a passage for the application element, for dispensing of the product P to be applied and wiping of the application element charged with product P to be applied, - a part (11 a) being part of a holder housing in which an internal handling part of the applicator is placed without any possibility of substantial relative rotation, - an elongate trough disposed between the narrow part being part of the orifice providing a passage and for dispensing and wiping and the part (11 a) being part of the holder housing, - the reservoir formed by the wide part of the shell and a corresponding closing part of the closing piece, - the orifice providing a passage and for dispensing and wiping formed by the narrow part of the shell and a corresponding closing part of the closing piece, - the metering and dealing conduit formed by the elongate trough of the shell and a corresponding closing part of the closing piece, and - the holder housing formed by the corresponding part (11 a) of the shell and a corresponding closing part of the closing piece,