A cosmetic product packaging device, comprising a reservoir containing a cosmetic product and a dispensing head closing said reservoir, wherein the dispensing head, comprising: - a dispensing member for the cosmetic product, having a tubular duct defining a passage for the cosmetic product, the duct having an outer face oriented opposite the passage, and - a stopper for closing off the passage, movable between a position freeing the passage and a position closing off the passage, the stopper comprising a finger extending in the passage when the stopper is in the closing off position and a skirt extending around the duct when the stopper is in the closing off position, the skirt having an inner face oriented toward the finger, the outer face of the duct and the inner face of the skirt having complementary cooperating means (80, 82) for securing the stopper to the dispensing member, in which the finger bears a peripheral scraping member protruding radially from a peripheral face of the finger, the scraping member having at least one perimeter line suitable for being in contact with the duct when the stopper is in the closing off position characterized in that the dispensing member has an annular protrusion protruding radially from the duct toward the inside of the passage, the protrusion defining a shoulder, and the scraping member is suitable for being in contact with said shoulder along a closed contour line when the stopper is in the closing off position, and in that the duct has an insertion end for inserting the finger into the passage and a connecting end for connecting the passage to a cosmetic product reservoir, opposite the insertion end, the annular protrusion protruding toward the inside of the passage from said connecting end. - a dispensing member for the cosmetic product, having a tubular duct defining a passage for the cosmetic product, the duct having an outer face oriented opposite the passage, and - a stopper for closing off the passage, movable between a position freeing the passage and a position closing off the passage, the stopper comprising a finger extending in the passage when the stopper is in the closing off position and a skirt extending around the duct when the stopper is in the closing off position, the skirt having an inner face oriented toward the finger, the outer face of the duct and the inner face of the skirt having complementary cooperating means (80, 82) for securing the stopper to the dispensing member, in which the finger bears a peripheral scraping member protruding radially from a peripheral face of the finger, the scraping member having at least one perimeter line suitable for being in contact with the duct when the stopper is in the closing off position characterized in that the dispensing member has an annular protrusion protruding radially from the duct toward the inside of the passage, the protrusion defining a shoulder, and the scraping member is suitable for being in contact with said shoulder along a closed contour line when the stopper is in the closing off position, and in that the duct has an insertion end for inserting the finger into the passage and a connecting end for connecting the passage to a cosmetic product reservoir, opposite the insertion end, the annular protrusion protruding toward the inside of the passage from said connecting end.