Abstract: The present invention relates to a cosmetic composition intended for application to the epidermis for the treatment of skin hyperpigmentation, characterized in that it comprises from 1 to 7 doses of an atomized cryogenic fluid, the boiling point of which is between ?196° C. and ?19° C., each dose measuring between 0.048 mL and 0.56 mL, to a method for the in situ preparation of said composition, and to a cosmetic treatment method using said composition.

Abstract: The disclosure relates to a nozzle for a device for the dermo-cosmetic treatment of dark skin spots by cyto-selective cryotherapy comprising a spray jet supplied by a tank of pressurised liquified cryogenic gas. The nozzle comprises an upper ring for connecting to a shell, extended by a central body of which the side wall which narrows downwards has longitudinal openings and delimits a gas expansion chamber communicating with a frustoconical dispersal conduit arranged inside an end piece to be applied to the skin and opening to the outside through a discharge port.

Abstract: The disclosure relates to a nozzle for a device for the dermo-cosmetic treatment of dark skin spots by cyto-selective cryotherapy comprising a spray jet supplied by a tank of pressurised liquified cryogenic gas. The nozzle comprises an upper ring for connecting to a shell, extended by a central body of which the side wall which narrows downwards has longitudinal openings and delimits a gas expansion chamber communicating with a frustoconical dispersal conduit arranged inside an end piece to be applied to the skin and opening to the outside through a discharge port.