Device for dosing a product that is intended to be applied to the skin

A metering device for a product intended to be applied to skin, in particular a pharmaceutical or cosmetic composition, comprising:

• an applicator stick that includes
• a longitudinal groove divided into a series of compartments and
• graduations provided perpendicular to the groove, that extend from a top surface of the applicator stick in a depth direction of the groove,
• wherein said groove accommodates a quantity of composition corresponding to a defined surface area of skin to be treated,
• wherein said quantity of composition is defined by the series of compartments, and
• wherein the groove defines an uncovered depression in the top surface of the applicator stick such that an entirety of the groove is exposed opposite the depression;
• wherein:
• one end of the groove corresponds to a start of a first compartment;
• the graduations divide the groove into the series of compartments;
• the graduations define the quantity of composition in each of the series of compartments of the groove;
• a volume of each of the compartments is defined by a length of the compartment in the axial direction;
• the applicator stick includes a flared circular portion and a narrow portion;
• the narrow portion extends from a first end of the applicator stick to the flared circular portion in an axial direction of the groove;
• the circular portion extends beyond the groove in an axial direction of the groove to a second end of the applicator stick;
• the circular portion includes a greater width than the narrow portion in a transverse direction of the applicator stick;
• the circular portion is dimensioned and configured so as to facilitate handling the applicator stick;
• and
• the composition is calcitriol ointment.