Abstract: The invention relates to a device for treating the hair including a first and a second arm connected together by a joint and able to move with respect to one another between a closed configuration for treating the hair and a spread configuration for engaging between them the hairs to be treated. The device also includes a refill including a body having a housing, a member for applying a cosmetic product received in the housing. The refill includes at least one first mounting means engaging with at least one second mounting means of the first arm, in such a way that the assembly of the first and second mounting means is performed by moving the first mounting means along an axis (Y) substantially parallel to the joint, relative to the second mounting means.

Abstract: A system is provided including a styling tool configured to treat or shape a user's hair, and a client device configured to communicate with the styling tool and provide feedback to the user regarding a user's usage of the styling tool. The client device is configured to receive input information from the user regarding a desired result to be achieved using the styling tool, and to output guidance information on a method of using the styling tool to achieve the desired result.

Abstract: The invention relates to a cosmetic refill (20) intended to be inserted in a removable manner into a housing (22) in a device (2) for treating the hair and to the associated treatment device (2). The cosmetic refill (20) comprises a body (23) that has a first wall (40) and a second wall (38) opposite the first wall (40), and at least one coupling relief (50, 52) that extends from each of the first wall (40) and the second wall (38). The coupling relief (50) on the first wall (40) is intended to cooperate with a first surface (46) of the housing (22) when the first wall (40) is introduced into the housing (22). The coupling relief (52) on the second wall (38) is intended to cooperate with a second surface (44) of the housing (22) when the refill (20) is brought into a use position by pivoting in the housing (22) about a pivot axis (B).

Abstract: The invention relates to a device for treating the hair and to the corresponding application method, the device (2) comprising: —two arms (5, 6) that are able to move relative to one another between a moved-together configuration for treating the hair and a spaced-apart configuration for inserting hair to be treated between said arms, and —a system (18) for applying a product, comprising an applicator member (26) for applying the product, the application system (18) being mounted on one of the arms (5) and being able to move relative to said arm (5) between at least two positions generating, while the device (2) is being used to treat the hair, different respective application pressures of the applicator member (26) on the hair to be treated.

Abstract: The invention relates to a refill (20) for a device for treating the hair, comprising a body (23) having a cavity (30) that is formed at least partially by two opposite walls (34, 36; 38, 40) and a bottom and opens towards the outside by way of an opening (31), and an applicator member that is inserted into the cavity (30) in the body (23) along an insertion axis and extends out of the cavity (30) through the opening (31). At least one of the walls (34, 36; 38, 40) and the bottom comprises at least one coupling relief (32) that engages with the applicator member in order to prevent it from being extracted from the cavity (30), this coupling relief (32) being designed such that the force for inserting the applicator member into the cavity is weaker than the extraction force.