Cosmetic compositions, systems and methods for conferring responsive durable shaping of keratinous fibers employ at least one shape memory polymer that includes a four-armed branched polyethylene glycol (PEG) based polymer that is functionalized with one or more metal-coordination active groups. The shape memory polymer forms a crosslinked network coating on a substrate, for example a substrate selected from keratinous substrates, for example, hair. Hair coated with the shape memory polymer and treated with an oxidizing agent can be shaped, locked into shape, and reprogrammed by modulation of pH. The coated hair retains durable shaping properties through at least one shampoo treatment. The cosmetic compositions, systems and methods provide durable and reprogrammable durable shaping of the keratinous substrate, for example for styling hair.

The invention relates to a method for the cosmetic treatment of keratin fibres, in particular human keratin fibres, such as the hair, comprising a stage of application of a composition comprising at least one metal compound, the metal of which belongs to the group of the rare earth metals, and then a stage of application of a shampoo comprising at least one surfactant.

The invention relates to a method for the cosmetic treatment of keratin fibres, in particular human keratin fibres, such as the hair, comprising a stage of application of a composition comprising at least one metal compound, the metal of which belongs to the group of the rare earth metals, and then a stage of application of a shampoo comprising at least one surfactant.

Methods and aqueous compositions for styling or reshaping keratinous fibers such as human hair are provided. An aqueous styling composition includes (a) 0.5 to 15.0% by weight of at least one disaccharide; and (b) 0.01 to 20.0% by weight of at least one alkali salt and/or alkaline earth salt, wherein the composition is free of synthetic film-forming polymers.

Methods and aqueous compositions for styling or reshaping keratinous fibers such as human hair are provided. An aqueous styling composition includes (a) 0.5 to 15.0% by weight of at least one disaccharide; and (b) 0.01 to 20.0% by weight of at least one alkali salt and/or alkaline earth salt, wherein the composition is free of synthetic film-forming polymers.

The present disclosure relates to hair care compositions such as hair treatment compositions and hair lightening compositions, methods for treating hair (e.g., lightening hair), and to kits comprising the compositions. The components of the hair treatment compositions may be included in hair lightening compositions and used to lighten and/or color hair. The hair treatment compositions typically include: (a) one or more polycarboxylic acids, and/or a salt thereof; (b) one or more amino acids, and/or a salt thereof; and optionally (c) one or more cationic conditioning agents. The hair lightening compositions further include (d) one or more bleaching agents.

The present disclosure relates to hair care compositions such as hair treatment compositions and hair lightening compositions, methods for treating hair (e.g., lightening hair), and to kits comprising the compositions. The components of the hair treatment compositions may be included in hair lightening compositions and used to lighten and/or color hair. The hair treatment compositions typically include: (a) one or more polycarboxylic acids, and/or a salt thereof; (b) one or more amino acids, and/or a salt thereof; and optionally (c) one or more cationic conditioning agents. The hair lightening compositions further include (d) one or more bleaching agents.

The present invention relates to a soothing composition, comprising (a) menthol compounds, and (b) one or more cosmetically acceptable carriers.

The present invention relates to a soothing composition, comprising (a) menthol compounds, and (b) one or more cosmetically acceptable carriers.

Provided is a composition for the treatment of keratin fibers, for example human keratin fibers such as the hair, comprising, in a cosmetically acceptable medium, at least one cationic polymer; at least one fatty amide; at least one anti-oxygen agent; and at least one oxidizing agent; wherein the pH of the composition ranges from 1.5 to 4.5. Also provided is a composition for the treatment of keratin fibers, comprising, in a cosmetically acceptable medium, at least one cationic polymer; at least one fatty amide; at least one anti-oxygen agent; and at least one oxidizing agent; wherein the pH of the composition is alkaline. Also provided is a method for treating keratin fibers, comprising applying, to the keratin fibers, at least one oxidizing composition described herein.