Abstract: The invention relates to a composition comprising the combination of at least one fatty substance, the total content of fatty substance being greater than or equal to 30% by weight, relative to the total weight of the composition, at least one particular carboxylic acid and at least one oxidation dye and/or an alkaline agent.

Abstract: The present invention relates to a composition for keratin fibers, comprising: (a) at least one inorganic compound selected from silicic acids and salts thereof; (b) at least one organic compound selected from amino acids, derivatives thereof, and salts thereof; (c) at least one alkaline agent other than the (a) inorganic compound and the (b) organic compound; (d) at least one fatty material; and (e) water. The composition according to the present invention can be used for oxidative dyeing or bleaching of keratin fibers such as hair.

Abstract: The present invention relates to the use of one or more particular amino acids or of a composition comprising same as a pretreatment for a process for dyeing or bleaching keratin fibres in order to improve the dyeing or bleaching of the keratin fibres.

Abstract: The present invention relates to a pretreatment composition of a process for dyeing or bleaching keratin fibers, comprising at least 5% by weight of one or more particular amino acids and at least 5% by weight of one or more monoalcohols, and alsoto a dyeing or bleaching process using the pretreatment composition.

Abstract: The present invention relates to a process for dyeing or bleaching keratin fibers, comprising the application to the keratin fibers of a composition comprising a high content of one or more particular amino acids followed by the application of a dyeing or bleaching composition.

Abstract: The present invention relates to a process for treating keratin fibers, comprising a step of applying to the keratin fibers a composition comprising a high content of one or more particular amino acids followed by a step of permanent reshaping of the keratin fibers.

Abstract: The present invention relates to the use, for dyeing or lightening keratin fibres, in particular human keratin fibres such as the hair, of a hand-held styling apparatus (1) equipped with at least one treatment surface (2d, 3d) partially or totally covered with at least one substrate (6) comprising a surface (6a) coated with at least one layer (6b) containing one or more dyes, preferably chosen from oxidation dyes and/or direct dyes, and/or one or more oxidizing agents. The invention also relates to an assembly (11, 24, 26) intended for dyeing or lightening keratin fibres, in particular human keratin fibres such as the hair, comprising at least one aqueous composition and at least one hand-held styling device (1) as defined above.

Abstract: The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, comprising the successive application to said fibres (i) of a composition (A) containing at least one peroxygenated salt and (ii) of a substrate including a surface totally or partially coated with at least one layer containing one or more oxidation dyes; said process does not use any hydrogen peroxide during the application of the substrate to the fibres.

Abstract: The present invention relates to a composition for treating keratin materials, in particular keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a cosmetically acceptable medium: at least one fatty substance in a content of greater than or equal to 10% by weight relative to the total weight of the composition, at least one oxyalkylenated (OA), preferably oxyethylenated (OE), nonionic surfactant comprising a number of OA units, preferably OE units, ranging from 1 to 9, at least one oxyalkylenated (OA), preferably oxyethylenated (OE), nonionic surfactant comprising at least 10 OA units, preferably OE units, the weight ratio of the amount of oxyalkylenated (OA), preferably oxyethylenated, nonionic surfactant(s) comprising a number of OA units, preferably OE units, ranging from 1 to 9 to the amount of oxyalkylenated (OA), preferably oxyethylenated, nonionic surfactants comprising at least 10 OA units, preferably OE units, being greater than 1, at least one chemical oxidizing ag

Abstract: The present invention relates to the use of one or more particular pyridinium salts for the treatment of keratin substances, particularly human keratin fibres such as hair. The invention also relates to a method for the treatment of keratin substances using said salts and optionally one or more chemical oxidizing agents. The invention also relates to a composition for lightening keratin substances comprising one or more pyridinium salts as defined hereinafter and one or more chemical oxidizing agents. The present invention also relates to one or more particular pyridinium salts and also to compositions containing them, especially compositions comprising a physiologically acceptable medium.

Abstract: The present invention relates to a composition for dyeing and/or lightening keratin fibres, in particular human keratin fibres such as the hair, comprising: a) one or more guanidine salts, b) one or more alkanolamines, c) ammonium hydroxide and d) at least two polymers chosen from cationic and amphoteric polymers, which are different from each other, e) optionally one or more colouring agents. The invention also relates to a dyeing and/or lightening process using said composition, and also to a multi-compartment device which is suitable for using said dyeing and/or lightening composition.

Abstract: The present invention relates to a composition for treating keratin materials, in particular keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a cosmetically acceptable medium: at least one fatty substance in a content of greater than or equal to 10% by weight relative to the total weight of the composition, at least one oxyalkylenated (OA), preferably oxyethylenated (OE), nonionic surfactant comprising a number of OA units, preferably OE units, ranging from 1 to 9, at least one oxyalkylenated (OA), preferably oxyethylenated (OE), nonionic surfactant comprising at least 10 OA units, preferably OE units, the weight ratio of the amount of oxyalkylenated (OA), preferably oxyethylenated, nonionic surfactant(s) comprising a number of OA units, preferably OE units, ranging from 1 to 9 to the amount of oxyalkylenated (OA), preferably oxyethylenated, nonionic surfactants comprising at least 10 OA units, preferably OE units, being greater than 1, at least one chemical oxidizing ag

Abstract: The present invention relates especially to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising: (i) one or more fatty substances in a content ranging from 40% to 85% by weight relative to the total weight of the dye composition, (ii) one or more oxyethylenated fatty alcohols with an oxyethylene number of less than or equal to 10, and (iii) one or more nonionic surfactants of alkylpolyglucoside type, (iv) optionally one or more alkaline agents, (v) one or more direct dyes which are preferably cationic, anionic or neutral. The present invention also relates to a process for dyeing keratin fibers, comprising the application to the said fibers of an above mentioned composition, optionally in the presence of a composition comprising one or more chemical oxidizing agents; the dye composition possibly resulting from the mixing of several compositions. Finally, the invention relates to devices that are suitable for performing this process.

Abstract: The present invention therefore relates in particular to an aqueous cosmetic composition comprising one or more fatty substances in a content ranging from 40% to 80% by weight, relative to the total weight of the cosmetic composition, one or more oxyethylenated fatty alcohols having a number of oxyethylenes less than or equal to 10, one or more alkylpolyglucoside-type surfactants; the present invention also relates to using the cosmetic composition in an oxidative coloring or bleaching method for keratin fibers, particularly human keratin fibers such as hair.

Abstract: The present invention relates to the use of one or more particular pyridinium salts for the treatment of keratin substances, particularly human keratin fibres such as hair. The invention also relates to a method for the treatment of keratin substances using said salts and optionally one or more chemical oxidizing agents. The invention also relates to a composition for lightening keratin substances comprising one or more pyridinium salts as defined hereinafter and one or more chemical oxidizing agents. The present invention also relates to one or more particular pyridinium salts and also to compositions containing them, especially compositions comprising a physiologically acceptable medium.

Abstract: The present invention relates to a process for the oxidation dyeing of keratin fibers implementing: a) a step of pretreating said fibers by application to said fibers of a cosmetic composition (B) comprising: i) at least one fatty substance in an amount of greater than or equal to 10% by weight relative to the total weight of the composition (B); and ii) at least one metal catalyst; b) optionally a washing, rinsing, drying and/or rubbing-dry step; c) followed by a step of dyeing by application to said fibers of a cosmetic composition (A) comprising: i) at least one oxidation base, preferably chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases preferably comprising at least two nitrogen atoms, and addition salts thereof; ii) optionally at least one coupler; and iii) at least one chemical oxidizing agent.

Abstract: The subject of the present invention is a process for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, implementing: a) a step of treating said fibers by application to said fibers of a cosmetic composition (A) comprising: i) at least one fatty substance in an amount of greater than 10% by weight relative to the total weight of the composition (A), at least one metal catalyst; ii) at least one coupler; iii) optionally at least one oxidation base, preferably chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, addition salts thereof and solvates thereof; b) optionally a washing, rinsing, drying and/or rubbing-dry step; c) a step of treatment by application to said fibers of an oxidizing cosmetic composition (B) comprising at least one chemical oxidizing agent; and it being understood that steps a), b) and c) can be carried out successively a), then b), then c), or else a) then c), followed by b).

Abstract: The subject of the present invention is a process for the oxidation dyeing of keratin fibres, in particular human keratin fibres such as the hair, implementing: a) a step of treating said fibres by application to said fibres of a cosmetic composition (A) comprising: i) at least one fatty substance in an amount of greater than 10% by weight relative to the total weight of the composition (A), at least one metal catalyst; ii) at least one coupler; iii) optionally at least one oxidation base, preferably chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, addition salts thereof and solvates thereof; b) optionally a washing, rinsing, drying and/or rubbing-dry step; c) a step of treatment by application to said fibres of an oxidizing cosmetic composition (B) comprising at least one chemical oxidizing agent; and it being understood that steps a), b) and c) can be carried out successively a), then b), then c), or else a) then c), followed by b).

Abstract: The present invention relates to a process for the oxidation dyeing of keratin fibres implementing: a) a step of pretreating said fibres by application to said fibres of a cosmetic composition (B) comprising: i) at least one fatty substance in an amount of greater than or equal to 10% by weight relative to the total weight of the composition (B); and ii) at least one metal catalyst; b) optionally a washing, rinsing, drying and/or rubbing-dry step; c) followed by a step of dyeing by application to said fibres of a cosmetic composition (A) comprising: i) at least one oxidation base, preferably chosen from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases preferably comprising at least two nitrogen atoms, and addition salts thereof; ii) optionally at least one coupler; and iii) at least one chemical oxidizing agent.

Abstract: The present invention relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising the use of one or more metal catalysts chosen from transition metal salts and rare-earth metal salts, and mixtures thereof and a composition (I) comprising at least 10% by weight of one or more fatty substances different from fatty acids, one or more oxidation dyes and one or more oxidizing agents.