Abstract: The present invention provides a method of treating hair, the method comprising the following steps: applying a composition to the hair, the composition comprising one or more active ingredients selected from the following: hair conditioning agents; reducing agents; organic or inorganic bases; hair dyes; abrasive solid particles; and moisturizing agents; and combing the hair using a motor-driven combing device (10) comprising spikes that are driven in an oscillating motion.

Abstract: The present invention relates to a method of treating the scalp, the method comprising the following steps: •applying a composition to the scalp, the composition including at least one active ingredient selected from: •anti-dandruff agents; •anti-seborrheic agents; •soothing or anti-irritant agents; •exfoliating agents; and •anti-hairloss agents; and •moisturizing agents; and •performing a massage of the scalp by means of a motor-driven massage device (10, 20) that includes spikes (21) that are driven by an oscillating movement.

Abstract: The present invention relates to a cosmetic hair treatment method comprising at least the steps consisting of: a) applying a mechanical tension to said hair, b) exposing said hair under mechanical tension to microwaves, in the presence of a solvent in vapour form in contact with said hair, without complete drying of the hair during microwave exposure, the solvent in vapour form being entirely generated by the evaporation of a compound which is present, before emission of the microwaves, in contact with the treated hair.

Abstract: A spray system including an airbrush; one or more removable containers that are closed initially, and that each contain a composition for spraying onto human keratinous materials; and a junction device that connects the container to the airbrush, the device including at least a composition-outlet first orifice enabling the composition to leave the container in order to be sprayed via the airbrush, and at least an air-inlet second orifice enabling air intake by the container.

Abstract: A junction device for a spray system. The device is arranged so as to connect, to an airbrush, at least one removable container containing a composition for spraying, the device includes at least a composition-outlet first orifice enabling the composition to leave the container in order to be sprayed via the airbrush, and at least an air-inlet second orifice enabling air intake by the container, the device including an air-intake channel that is connected to the air-inlet orifice, and said channel terminating by an air-entry orifice that is situated above the air-inlet orifice and the composition-outlet orifice.

Abstract: A method for permanently reshaping keratin fibers, such as hair, comprising applying onto the keratin fibers a pre-treating composition comprising, in a cosmetically acceptable medium, at least one entity chosen from non reducing inorganic acids, non reducing organic acids, and salts thereof, wherein the pH value of said pre-treating composition ranges from 2 to 5; rinsing the keratin fibers; applying onto the keratin fibers a treating composition comprising, in a cosmetically acceptable medium, at least one hydroxide compound; and reshaping the keratin fibers, wherein the reshaping occurs after applying the pre-treating composition and at any time before, during, or after applying the treating composition.