The assembly has an aerosol container (4) arranged with respect to a body to form a gripping unit and containing a cosmetic product. A driving unit (19) drives in rotation, a massage unit, (2) around a rotational axis (X) with respect to the body and the container. The massage unit has an application surface (6) with a relief (39), and a conduit (5) is in fluidic communication between an outlet (11) of the container and the massage unit. The container has an elongated axis (Y) parallel to the rotational axis and elongated between the outlet and a base of the container. Independent claims are also included for the following: (1) a kit comprising a product applying and massaging assembly (2) a cosmetic and non therapeutic method for applying a product on a surface of a body.
