Hair treatment compositions and processes

Abstract

Hair Treatment Compositions and Processes: The disclosure relates to compositions for treating hair and processes for using the compositions. The compositions include (a) at least one carboxylic acid and / or a salt thereof, and (b) glycine and / or a salt thereof. The compositions and processes may be intended to alter hair color and / or provide strength and / or elasticity to hair. Figure for abstract: none

Description

Title of the invention: Hair treatment compositions and processes. Technical field

[0001] This disclosure relates to hair treatment compositions, for example for changing hair color, and methods of using the compositions to change hair color. The compositions and methods maintain or remarkably improve the integrity of the hair fibers and the cosmetic properties of the treated hair. CONTEXT

[0002] It is known that consumers wish to use cosmetic and care compositions that enhance the appearance of keratinous substrates such as hair, for example by changing the color, style and / or shape of the hair, and / or by imparting various properties to the hair, such as shine and revitalization. However, many of the compositions and processes known to improve the appearance of hair involve chemical treatment of the hair.

[0003] The process of modifying hair color, for example, may involve enhancing hair color and / or depositing an artificial color onto the hair, thereby imparting a different shade or color to the hair. The hair color enhancement process, also known as lightening, generally requires the use of compositions that include oxidizing agents. Such oxidizing agents penetrate the hair shaft and react with the melanin in the hair, thus lightening the hair color. Additional agents, such as persulfate salts, may be added to accelerate the process.

[0004] Imparting a color change or color effect to hair can be achieved using permanent, demi-permanent, semi-permanent, or temporary hair coloring products. Conventional permanent hair coloring products are dye compositions comprising oxidation dye precursors, which are also known as primary intermediates or couplers. These oxidation dye precursors are colorless or faintly colored compounds that, when combined with oxidizing or "developing" compositions, give rise to colored complexes by a process of oxidative condensation. Developing compositions traditionally use peroxides such as hydrogen peroxide as oxidizing agents.

[0005] Hair lightening or color-enhancing compositions and hair coloring compositions possess an alkalinity such that these compositions have a pH value greater than 7, typically greater than or equal to 9, and may generally require the presence of ammonia or an ammonia-generating compound, or other alkalizing agents such as monoethanolamine in sufficient quantities to render these compositions alkaline. These alkalizing agents cause the hair shaft to swell and open the cuticle, thus allowing small molecules of oxidative dye to penetrate the cuticle and cortex before the completion of the oxidation condensation process. The larger color complexes resulting from the oxidative reaction are then trapped inside the hair fiber, thus permanently altering the hair color.

[0006] On the other hand, semi-permanent or temporary hair coloring compositions typically use pigments, oil-soluble dyes, or direct dyes that are deposited onto the hair fiber to impart color to the hair. Direct dyes are non-ionic or ionic dyes and colored compounds capable of producing a more or less pronounced change in the natural hair color, resisting several shampooings. These dyes may or may not be used with an oxidizing agent. Unlike oxidative dye precursors, a direct dye is a relatively large molecule that does not easily penetrate the center of the hair fiber.

[0007] Although such compositions can effectively alter hair color, these chemical treatments are known to damage hair fibers and decrease hair strength and elasticity, as well as negatively affect sensory properties such as softness, shine, and feel. Indeed, consumers who have previously dyed their hair often complain that it is difficult to style, breaks easily, and generally appears rough and / or dull compared to before the coloring process. Furthermore, hair damaged during a bleaching and / or dyeing process may not absorb color satisfactorily, resulting in uneven or inconsistent color.

[0008] Thus, to reduce or avoid these drawbacks, new ingredients and new combinations of ingredients are needed that can help prevent, reduce, or even reverse damage when used before, during, after, or in conjunction with compositions and processes for altering hair color. However, the choice of ingredients or combinations of ingredients could pose difficulties insofar as they must not impair other cosmetic attributes such as ease and uniformity of application, rheology, or the viscosity properties of compositions, stability of compositions, and / or color deposition and formation of a target shade, and they cannot lead to further disadvantages such as increased damage or a less healthy appearance or feel of the hair.

[0009] In this regard, it is necessary to develop new and improved products that can be used to effectively modify hair color, while maintaining or improving hair integrity during coloring and avoiding or minimizing hair damage. The disclosure addresses these concerns and proposes a surprisingly synergistic combination of components that, when used with hair color-modifying compositions, has been shown to prevent, minimize, or eliminate hair damage that would otherwise result from the hair coloring process. SUMMARY

[0010] The disclosure relates to compositions and processes for treating keratinous fibers, particularly hair. The compositions include components that prevent or significantly reduce damage to hair, provide strength and / or elasticity to hair, and / or enable hair fibers to maintain their integrity, for example, in hair color modification processes. In particular, the compositions include (a) at least one carboxylic acid and / or a salt thereof, (b) glycine and / or a salt thereof, (c) at least one solvent, and (d) optionally at least one hair color modifying agent.

[0011] The disclosure relates to hair color base compositions and hair color modifying compositions comprising (a) at least one carboxylic acid and / or a salt thereof, (b) glycine and / or a salt thereof, and (c) at least one solvent. In some embodiments, the weight ratio of the total amount of (b) glycine and its salts to the total amount of (a) carboxylic acids and their salts is greater than about 1, preferably from about 1 to about 10, more preferably from about 1.25 to about 5, most preferably from about 1.5 to about 3.5. It has been discovered, surprisingly and unexpectedly, that the compositions provide integrity to the keratin fibers and strengthen the fibers, thereby minimizing and / or preventing hair damage such as that which can be caused by chemical treatments during hair highlighting or coloring processes.

[0012] In various embodiments, the basic hair color compositions comprise (a) at least one carboxylic acid and / or a salt thereof; (b) glycine and / or a salt thereof; (c) at least one solvent; and optionally at least one additional component selected from color-modifying agents hair, colloidal agents, alkalizing agents, fatty alcohols, cationic polymers, or combinations of two or more of these. The pH of the base hair color composition is generally greater than 7, for example, from about 9 to about 11, from about 9.5 to about 11, or from about 10 to about 11. The total amount of carboxylic acids and salts thereof may range from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, most preferably from about 0.1% to about 1% by weight, relative to the total weight of the composition. The total amount of glycine and its salts may vary from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, even more preferably from about 0.2% to about 2% by weight, relative to the total weight of the composition.In some embodiments, the weight ratio of the total amount of (b) glycine and its salts to the total amount of (a) carboxylic acids and their salts is greater than about 1, for example, greater than about 1.5, or greater than about 2, preferably from about 1 to about 10, more preferably from about 1.25 to about 5, most preferably from about 1.5 to about 3.5. If present, the alkalizing agent may be selected from organic and / or mineral alkalizing agents, for example, monoethanolamine and / or ammonia or ammonium hydroxide. If present, the colloidal agents may be selected from, for example, celluloses and their derivatives, for example, hydroxyethylcellulose and / or cetyl hydroxyethylcellulose.

[0013] In other embodiments, the basic hair color compositions comprise (a) at least one tricarboxylic acid and / or a salt thereof; (b) glycine and / or a salt thereof; (c) at least one solvent; and optionally at least one additional component selected from hair color modifying agents, colloidal agents, alkalizing agents, fatty alcohols, cationic polymers, or combinations of two or more of these. The pH of the base composition of hair color is generally greater than 7, for example from about 9 to about 11, from about 9.5 to about 11, or from about 10 to about 11. The total amount of tricarboxylic acids and salts thereof may range from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, most preferably from about 0.1% to about 1% by weight, relative to the total weight of the composition.The total quantity of glycine and its salts may vary from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, and even more preferably from about 0.2% to about 2% by weight, relative to the total weight of the composition. In some embodiments, the weight ratio of the total quantity of (b) glycine and its salts to the . The total quantity of (a) tricarboxylic acids and their salts is greater than about 1, for example, greater than about 1.5, or greater than about 2, preferably from about 1 to about 10, more preferably from about 1.25 to about 5, most preferably from about 1.5 to about 3.5. If present, the alkalizing agent may be selected from organic and / or mineral alkalizing agents, for example, monoethanolamine and / or ammonia or ammonium hydroxide. If present, the colloidal agents may be selected from, for example, celluloses and their derivatives, for example, hydroxyethylcellulose and / or cetyl hydroxyethylcellulose.

[0014] In still other embodiments, the basic hair color compositions comprise (a) citric acid and / or a salt thereof; (b) glycine and / or a salt thereof; (c) at least one solvent; and optionally at least one additional component selected from hair color modifying agents, colloidal agents, alkalizing agents, fatty alcohols, cationic polymers or combinations of two or more of these. The pH of the base composition of hair colour is generally greater than 7, for example from about 9 to about 11, from about 9.5 to about 11, or from about 10 to about 11. The total amount of citric acid and its salts may range from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, most preferably from about 0.1% to about 1% by weight, relative to the total weight of the composition.The total amount of glycine and its salts may vary from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, and even more preferably from about 0.2% to about 2% by weight, relative to the total weight of the composition. In some embodiments, the weight ratio of the total amount of (b) glycine and its salts to the total amount of (a) citric acid and its salts is greater than about 1, for example, greater than about 1.5, or greater than about 2, preferably from about 1 to about 10, more preferably from about 1.25 to about 5, and most preferably from about 1.5 to about 3.5. If present, the alkalizing agent may be chosen from among organic and / or mineral alkalizing agents, for example monoethanolamine and / or ammonia or ammonium hydroxide.If available, colloidal agents can be chosen from, for example, celluloses and their derivatives, such as hydroxyethylcellulose and / or cetyl hydroxyethylcellulose.

[0015] The disclosure also relates to hair color-modifying compositions comprising a hair color base composition as described herein and at least one oxidizing agent. For example, the hair color-modifying composition may be prepared by mixing a hair color base composition hair color according to the disclosure with a developer composition comprising one or more oxidizing agents, at the time of use or shortly thereafter. In various embodiments, the oxidizing composition is a developer composition based on 5V, 10V, 20V, 30V, or 40V hydrogen peroxide. In various embodiments, the hair color base composition and the oxidizing composition may be mixed in a mixing ratio ranging from 5:1 to 1:5, preferably from 3:1 to 1:3, more preferably from 2:1 to 1:2, most preferably in the range of 1.5:1 to 1:1.5. The hair color-modifying compositions may, in various embodiments, be permanent or semi-permanent.

[0016] In other embodiments, the disclosure relates to methods for preparing a hair color-modifying composition, the methods comprising mixing a hair color base composition according to the disclosure with a developer composition comprising one or more oxidizing agents. In various embodiments, the oxidizing composition is a developer composition based on 5V, 10V, 20V, 30V, or 40V hydrogen peroxide. For example, the hair color base composition and the oxidizing composition may be mixed in a mixing ratio ranging from 5:1 to 1:5, preferably in the range of 3:1 to 1:3, more preferably in the range of 2:1 to 1:2, most preferably in the range of 1.5:1 to 1:1.5.

[0017] In still other embodiments, the disclosure relates to methods for treating keratin fibers, for example hair, by applying to the hair a hair color-modifying composition as described herein, for example prepared by mixing a hair color base composition according to the disclosure with a developer composition comprising one or more oxidizing agents, at the time of use or shortly thereafter. The hair color-modifying composition may be left on the hair for a desired period, for example from about 1 minute to about 60 minutes, from about 5 minutes to about 45 minutes, or from about 10 minutes to about 30 minutes. The hair may then be rinsed.

[0018] In still other embodiments, the disclosure relates to kits comprising a hair color base composition as described herein. For example, a kit may comprise a first compartment or container containing a hair color base composition and a second compartment or container, which may, for example, comprise a developer composition. DETAILED DESCRIPTION

[0019] This disclosure relates to compositions for modifying hair color, comprising both base hair color compositions and compositions for modifying hair color comprising a base hair color composition according to the disclosure and at least one oxidizing agent, as well as kits containing the compositions and methods for using the compositions. A unique feature of the compositions and methods according to this disclosure is a bonding system incorporated in the compositions for modifying hair color, wherein the bonding system comprises a synergistic combination of one or more alpha-hydroxy acids comprising at least three hydrogen-donating carboxyl groups and / or their salts, and at least one amino acid selected from glycine and / or its salts.Surprisingly, this synergistic combination has been found to significantly strengthen the integrity of hair fibers and / or minimize damage to hair caused by oxidative dyeing compositions and processes. I. COMPOSITIONS

[0020] In various embodiments, the compositions according to the disclosure are compositions for modifying hair color, for example, for modifying hair color semi-permanently or permanently. The compositions may be base compositions modifying hair color that can be mixed with a developer composition comprising at least one oxidizing agent at the time of use or shortly thereafter, or may be hair color-modifying compositions that result from mixing a base composition modifying hair color with a developer composition comprising at least one oxidizing agent. Basic compositions of hair color

[0021] In various embodiments, the hair color base compositions (interchangeably referred to as "hair base compositions" or "base compositions") according to the disclosure comprise a synergistic combination of (a) at least one carboxylic acid and / or a salt thereof, (b) glycine and / or a salt thereof, and (c) at least one solvent. In various embodiments, the hair color base compositions further comprise at least one additional component selected from oxidative dye compounds, direct dyes, pigments, fatty alcohols, fatty compounds other than fatty alcohols, surfactants, cationic polymers, alkalizing agents, colloidal agents, auxiliary agents, or combinations of two or more of these. The pH of the hair color base composition is generally greater than 7. Carboxylic acids

[0022] The hair color base compositions according to the disclosure include at least one carboxylic acid. According to various embodiments of the disclosure, the useful carboxylic acids include organic compounds that have, for example, one (mono-), two (di-), three (tri-), or more acid functional groups and at least one carbon atom. The carboxylic acids are preferably non-polymer. In preferred embodiments, the compositions according to the disclosure include at least one tricarboxylic acid.

[0023] The carboxylic acids that may be used may optionally have a molecular weight less than approximately 500 g / mol, less than approximately 400 g / mol, less than approximately 300 g / mol, or less than approximately 200 g / mol. In preferred embodiments, the carboxylic acids have a molecular weight less than approximately 300 g / mol, or less than approximately 200 g / mol.

[0024] Salts of carboxylic acids may also be used and are expressly included when the term "carboxylic acid" is used, unless otherwise specified. Salts include organic or mineral-based salts, for example, alkali metal salts, such as lithium, sodium, or potassium salts; alkaline earth metal salts, such as magnesium or calcium salts; and zinc salts. Alkali metal or alkaline earth metal salts are preferred in some embodiments, and in particular sodium salts.

[0025] In some embodiments, the compositions comprise one or more hydroxylated (poly)carboxylic acids having from 2 to 12 carbon atoms, such as from 3 to 10 carbon atoms, or from 4 to 8 carbon atoms, and may be saturated or unsaturated, and linear or branched, and / or a salt thereof. The useful (poly)acids comprise at least one -COOH group (in acid or sal form); they may thus comprise a single -COOH group (monoacid) or may comprise more than one, for example, two -COOH groups (in acid or sal form), or two or three -COOH groups (in acid or sal form) (polyacids). The useful (poly)acids also comprise at least one -OH group, such as from one to three or from two to three -OH groups, for example, one, two, or three -OH groups.Optionally, (poly)acids comprise a total of 2 to 10 or 3 to 8 carbon atoms, and two to three -OH groups, and their hydrocarbon chain is saturated or unsaturated, linear or branched, and preferably saturated and linear. In some embodiments, hydroxylated (poly)carboxylic acids and / or their salts comprise a total of 4 to 8 carbon atoms, one to three -OH groups, and two to three -COOH groups (in acid or salt form). Unless otherwise specified, as used herein, the term "(poly)acid" includes both monoacids and polyacids.

[0026] Non-limiting examples of monocarboxylic acids that may be chosen include formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, lactic acid, their salts, or combinations of two or more of these.

[0027] Non-limiting examples of dicarboxylic acids that may be chosen include oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, salts thereof, or combinations of two or more of these.

[0028] Non-limiting examples of tricarboxylic acids include citric acid, isocitric acid, aconitic acid, propane-1,2,3-tricarboxylic acid, salts thereof, or combinations of two or more of these. In some embodiments, the carboxylic acid may comprise, consist essentially of, or consist of tricarboxylic acids and / or salts thereof, in particular citric acid and / or a salt thereof.

[0029] In some embodiments, the carboxylic acid(s) may be selected from oxalic acid, malonic acid, glutaric acid, succinic acid, adipic acid, glycolic acid, citric acid, tartaric acid, malic acid, maleic acid, lactic acid, their salts, or combinations of two or more of these. In particular embodiments, the carboxylic acids are selected from α-hydroxy acids and their salts, and in particular from lactic acid, glycolic acid, tartaric acid, malic acid, citric acid, or their salts, especially alkali metal or alkaline earth metal salts.In certain embodiments, it may be particularly advantageous to choose citric acid, lactic acid, malic acid and / or tartaric acid and / or their salts, in particular alkali metal or alkaline earth metal salts, such as sodium citrate and / or sodium tartrate; preferably citric acid and / or its salts, in particular alkali metal or alkaline earth metal salts, such as sodium citrate.

[0030] The total amount of carboxylic acids and salts thereof can vary from about 0.01% to about 10%, for example from about 0.025% to about 5%, from about 0.05% to about 3%, from about 0.05% to about 2%, from about 0.075% to about 1%, from about 0.1% to about 0.5%, or from about 0.15% to about 0.25% by weight, relative to the total weight of the base composition of hair color. For example, in various embodiments, the total amount of carboxylic acids and their salts can vary from about 0.01% to about 5%, for example from about 0.01% to about 4.5%, from about 0.01% to about 4%, from about 0.01% to about 3.5%, from about 0.01% to about 3%, from about 0.01% to about 2.5%, from about 0.01% to approximately 2%, from approximately 0.01% to approximately 1.5%, from approximately 0.01% to approximately 1.4%, from approximately 0.01% to approximately 1.3%, from approximately 0.01% to approximately 1.2%, from approximately 0.01% to approximately 1.1%, from approximately 0.01% to approximately 1%, from approximately 0.01% to approximately 0.9%, from approximately 0.01% to approximately 0.8%, from approximately 0.01% to approximately 0.7%, from approximately 0.01% to approximately 0.6%, from approximately 0.01% to approximately 0.5%, from approximately 0.01% to approximately 0.4%, from approximately 0.01% to approximately 0.3%, from approximately 0.01% to approximately 0.2%, from approximately 0.01% to approximately 0.1%, from approximately 0.05% to approximately 5%, from approximately 0.05% to approximately 4.5%, from approximately 0.05% to approximately 4%, from approximately 0.05% to approximately 3.5%, from approximately 0.05% to approximately 3%, from approximately 0.05% to approximately 2.5%, from approximately 0.05% to approximately 2%, from approximately 0.05% to approximately 1.5%, from approximately 0.05% to approximately 1.4%, from approximately 0.05% to approximately 1.3%, from approximately 0.05% to approximately 1.2%, from approximately 0.05% to approximately 1.1%, from approximately 0.05% to approximately 1%, from approximately 0.05% to approximately 0.9%, from approximately 0.0.05% to approximately 0.8%, from approximately 0.05% to approximately 0.7%, from approximately 0.05% to approximately 0.6%, from approximately 0.05% to approximately 0.5%, from approximately 0.05% to approximately 0.4%, from approximately 0.05% to approximately 0.3%, from approximately 0.05% to approximately 0.2%, from approximately 0.05% to approximately 0.1%, from approximately 0.1% to approximately 5%, from approximately 0.1% to approximately 4.5%, from approximately 0.1% to approximately 4%, from approximately 0.1% to approximately 3.5%, from approximately 0.1% to approximately 3%, from approximately 0.1% to approximately 2.5%, from approximately 0.1% to approximately 2%, from approximately 0.1% to approximately 1.5%, from approximately 0.1% to approximately 1.4%, from approximately 0.1% to approximately 1.3%, from approximately 0.1% to approximately 1.2%, from approximately 0.1% to approximately 1.1%, from approximately 0.1% to approximately 1%, from approximately 0.1% to approximately 0.9%, from approximately 0.1% to approximately 0.8%, from approximately 0.1% to approximately 0.7%, from approximately 0.1% to approximately 0.6%, from approximately 0.1% to approximately 0.5%, from approximately 0.1% to approximately 0.4%, from approximately 0.1% to approximately 0.3%, from approximately 0.1% to approximately 0.2%, from approximately 0.15% to approximately 5%, from approximately 0.15% to approximately 4.5%, from approximately 0.15% to approximately 4%, from approximately 0.15% to approximately 3.5%, from approximately 0.15% to approximately 3%, from approximately 0.15% to approximately 2.5%, from approximately 0.15% to approximately 2%, from approximately 0.15% to approximately 1.5%, from approximately 0.15% to approximately 1.4%, from approximately 0.15% to approximately 1.3%, from approximately 0.15% to approximately 1.2%, from approximately 0.15% to approximately 1.1%, from approximately 0.15% to approximately 1%, from approximately 0.15% to approximately 0.9%, from approximately 0.15% to approximately 0.8%, from approximately 0.15% to approximately 0.7%, from approximately 0.15% to approximately 0.6%, from approximately 0.15% to approximately 0.5%, approximately 0.15% to approximately 0.4%, approximately 0.15% to approximately 0.3%, or approximately 0.15% to approximately 0.2% by weight, relative to the total weight of the base hair color composition. In various embodiments, the total amount of carboxylic acids and their salts is approximately or exactly 0.05%, approximately or exactly 0.075%, approximately or exactly 0.1%, approximately or exactly 0.15%, approximately or exactly 0.2%, approximately or exactly 0.25%, approximately or exactly 0.3%, approximately or exactly 0.35% or approximately or exactly 0.4% by weight, relative to the weight, total of the base composition of hair color, including all ranges and sub-ranges thereof.

[0031] In some embodiments, the hair color base composition may comprise one or more tricarboxylic acids and / or salts thereof, for example citric acid and / or one or more salts thereof, in an amount ranging from about 0.01% to about 10%, for example from about 0.025% to about 5%, from about 0.05% to about 3%, from about 0.05% to about 2%, from about 0.075% to about 1%, from about 0.1% to about 0.5%, or from about 0.15% to about 0.25% by weight, relative to the total weight of the hair color base composition.In various embodiments, the total amount of citric acid and salts thereof is approximately or exactly 0.05%, approximately or exactly 0.075%, approximately or exactly 0.1%, approximately or exactly 0.15%, approximately or exactly 0.2%, approximately or exactly 0.25%, approximately or exactly 0.3%, approximately or exactly 0.35%, or approximately or exactly 0.4% by weight, relative to the total weight of the base composition of hair colour, including all ranges and sub-ranges thereof. Glycine

[0032] It has been discovered that glycine, in combination with one or more of the carboxylic acids described above, particularly with one or more tricarboxylic acids and their salts, offers superior, unexpected advantages for maintaining or improving the integrity and cosmetic properties of hair when used in or with compositions and processes for altering hair color. Therefore, the compositions according to the disclosure include glycine and / or one or more of its salts. Glycine salts are expressly included where the term "glycine" is used, unless expressly stated otherwise.

[0033] In various embodiments, the total amount of glycine and its salts varies from about 0.01% to about 10%, for example from about 0.025% to about 5%, from about 0.05% to about 3%, from about 0.075% to about 2%, from about 0.1% to about 1%, or from about 0.25% to about 0.75% by weight, relative to the total weight of the base composition of hair color.For example, in various embodiments, the total amount of carboxylic acids and their salts can vary from about 0.1% to about 5%, for example, from about 0.1% to about 4.5%, from about 0.1% to about 4%, from about 0.1% to about 3.5%, from about 0.1% to about 3%, from about 0.1% to about 2.5%, from about 0.1% to about 2%, from about 0.1% to about 1.5%, from about 0.1% to about 1.4%, from about 0.1% to about 1.3%, from about 0.1% to about 1.2%, from about 0.1% to about 1.1%, from about 0.1% to about 1%, from about 0.1% to about 0.9%, from about 0.1% to about 0.8%. %, from about 0.1% to about 0.7%, from about 0.1% to about . 0.6%, from approximately 0.1% to approximately 0.5%, from approximately 0.1% to approximately 0.4%, from approximately 0.1% to approximately 0.3%, from approximately 0.2% to approximately 5%, from approximately 0.2% to approximately 4.5%, from approximately 0.2% to approximately 4%, from approximately 0.2% to approximately 3.5%, from approximately 0.2% to approximately 3%, from approximately 0.2% to approximately 2.5%, from approximately 0.2% to approximately 2%, from approximately 0.2% to approximately 1.5%, from approximately 0.2% to approximately 1.4%, from approximately 0.2% to approximately 1.3%, from approximately 0.2% to approximately 1.2%, from approximately 0.2% to approximately 1.1%, from approximately 0.2% to approximately 1%, from approximately 0.2% to approximately 0.9%, from approximately 0.2% to approximately 0.8%, from approximately 0.2% to approximately 0.7%, from approximately 0.2% to approximately 0.6%, from approximately 0.2% to approximately 0.5%, from approximately 0.2% to approximately 0.4%, from approximately 0.2% to approximately 0.3%, from approximately 0.3% to approximately 5%, from approximately 0.3% to approximately 4.5%, from approximately 0.3% to approximately 4%, from approximately 0.3% to approximately 3.5%, from approximately 0.3% to approximately 3%, from approximately 0.3% to approximately 2.5%, from approximately 0.3% to approximately 2%, from approximately 0.3% to approximately 1.5%, from approximately 0.3% to approximately 1.4%, from approximately 0.3% to approximately 1.3%, from approximately 0.3% to approximately 1.2%, from approximately 0.3% to approximately 1.1%, from approximately 0.3% to approximately 1%, from approximately 0.3% to approximately 0.9%, from approximately 0.3% to approximately 0.8%, from approximately 0.3% to approximately 0.7%, from approximately 0.3% to approximately 0.6%, from approximately 0.3% to approximately 0.5%, from approximately 0.3% to approximately 0.4%, from approximately 0.4% to approximately 5%, from approximately 0.4% to approximately 4.5%, from approximately 0.4% to approximately 4%, from approximately 0.4% to approximately 3.5%, from approximately 0.4% to approximately 3%, from approximately 0.4% to approximately 2.5%, from approximately 0.4% to approximately 2%, from approximately 0.4% to approximately 1.5%, from approximately 0.4% to approximately 1.4%, from approximately 0.4% to approximately 1.3%, from approximately 0.4% to approximately 1.2%, from approximately 0.4% to approximately 1.1%, from approximately 0.4% to approximately 1%, from approximately 0.4% to approximately 0.9%, from approximately 0.4% to approximately 0.8%, from approximately 0.4% to approximately 0.7%, from approximately 0.4% to approximately 0.6%, from approximately 0.4% to approximately 0.5%, from approximately 0.5% to approximately 5%from about 0.5% to about 4.5%, from about 0.5% to about 4%, from about 0.5% to about 3.5%, from about 0.5% to about 3%, from about 0.5% to about 2.5%, from about 0.5% to about 2%, from about 0.5% to about 1.5%, from about 0.5% to about 1.4%, from about 0.5% to about 1.3%, from about 0.5% to about 1.2%, from about 0.5% to about 1.1%, from about 0.5% to about 1%, from about 0.5% to about 0.9%, from about 0.5% to about 0.8%, from about 0.5% to about 0.7%, or from about 0.5% to about 0.6% by weight, relative to the total weight of the base composition hair color. In various embodiments, the total amount of glycine and its salts is approximately or exactly 0.1%, approximately or exactly 0.2%, approximately or exactly 0.3%, approximately or exactly 0.35%, approximately or exactly 0.4%, approximately or exactly 0.45%, approximately or exactly 0.5%, approximately or exactly 0.55%, approximately or exactly 0.6%approximately or exactly 0.65%, approximately or exactly 0.7%, approximately or exactly 0.75%, or approximately or exactly 0.8%, in weight, relative to the total weight of the base hair color composition, including all ranges and sub-ranges thereof.

[0034] It has been discovered that by choosing quantities of carboxylic acids and glycine in a relative ratio, the integrity of the hair fibers is remarkably improved. Therefore, in various embodiments, the quantities of carboxylic acids and glycine can be chosen such that the weight ratio of the total quantity of glycine and its salts to the total quantity of carboxylic acids and its salts is greater than or equal to approximately 1, such as greater than or equal to approximately 1.25, greater than or equal to approximately 1.5, greater than or equal to approximately 1.75, greater than or equal to approximately 2, greater than or equal to approximately 2.25, or greater than or equal to approximately 2.5. For example, in some embodiments, the weight ratio of the total amount of glycine and its salts to the total amount of carboxylic acids and their salts varies from about 1 to about 10, for example from about 1 to about 7.5, from about 1 to about 5,from approximately 1 to approximately 4, from approximately 1 to approximately 3, from approximately 1 to approximately 2.75, from approximately 1 to approximately 2.5, from approximately 1 to approximately 2.25, from approximately 1 to approximately 2, from approximately 1.25 to approximately 10, from approximately 1.25 to approximately 7.5, from approximately 1.25 to approximately 5, from approximately 1.25 to approximately 4, from approximately 1.25 to approximately 3, from approximately 1.25 to approximately 2.75, from approximately 1.25 to approximately 2.5, from approximately 1.25 to approximately 2.25, from approximately 1.25 to approximately 2, from approximately 1.5 to approximately 10, from approximately 1.5 to approximately 7.5, from approximately 1.5 to approximately 5, from approximately 1.5 to approximately 4, from approximately 1.5 to approximately 3, from approximately 1.5 to approximately 2.75, from approximately 1.5 to approximately 2.5, from approximately 1.5 to approximately 2.25, from approximately 1.5 to approximately 2, from approximately 1.75 to approximately 10, from approximately 1.75 to approximately 7.5, from approximately 1.75 to approximately 5, from approximately 1.75 to approximately 4, from approximately 1.75 to approximately 3, from approximately 1.75 to approximately 2.75, from approximately 1.75 to approximately 2.5, from approximately 1.75 to approximately 2.25, from approximately 1.75 to approximately 2, from approximately 2 to approximately 10, from approximately 2 to approximately 7.5,from about 2 to about 5, from about 2 to about 4, from about 2 to about 3, from about 2 to about 2.75, from about 2 to about 2.5, from about 2 to about 2.25, from about 2.25 to about 10, from about 2.25 to about 7.5, from about 2.25 to about 5, from about 2.25 to about 4, from about 2.25 to about 3, from about 2.25 to about 2.75, or from about 2.25 to about 2.5. In some embodiments, the weight ratio of the total amount of glycine and its salts to the total amount of carboxylic acids and their salts is approximately or exactly 1, approximately or exactly 1.1, approximately or exactly 1.2, approximately or exactly 1.3, approximately or exactly 1.4, approximately or exactly 1.5, approximately or exactly 1.6, approximately or exactly 1.7, approximately or exactly 1.8, approximately or exactly 1.9, approximately or exactly 2, approximately or exactly 2.1, approximately or exactly 2.2, approximately or exactly 2.3, approximately or exactly 2.4,approximately or exactly 2.5, approximately , or exactly 2.6, of approximately or exactly 2.7, of approximately or exactly 2.8, of approximately or exactly 2.9, of approximately or exactly 3, of approximately or exactly 3.1, of approximately or exactly 3.2, of approximately or exactly 3.3, of approximately or exactly 3.4, or of approximately or exactly 3.5, including all ranges and subranges thereof.

[0035] By way of non-limiting example, the basic hair color compositions according to the disclosure may comprise glycine and one or more tricarboxylic acids, for example citric acid, the total amounts of tricarboxylic acids and their salts, for example citric acid and its salts, and glycine and its salts, being chosen such that the weight ratio of the total amount of glycine and its salts to the total amount of tricarboxylic acids and their salts, for example citric acid and its salts, is greater than or equal to about 1, such as greater than or equal to about 1.25, greater than or equal to about 1.5, greater than or equal to about 1.75, greater than or equal to about 2, greater than or equal to about 2.25, or greater than or equal to about 2.5, for example ranges from about 1 to about 10, from about 1.25 to about 7.5, from approximately 1.5 to approximately 5, from approximately 1.75 to approximately 4, from approximately 2 to approximately 3, or from approximately 2.25 to approximately 2,75. , Hair color modifying agents

[0036] The compositions according to the disclosure may be useful for permanently or semi-permanently altering hair color. Thus, the basic hair color compositions may further comprise at least one hair color-modifying agent, in a sufficient quantity to alter the hair color. The hair color-modifying agents may be selected from those that permanently or non-permanently alter hair color. Non-limiting examples of permanently altering hair color agents include oxidative dye compounds and oxidizing agents, and non-limiting examples of non-permanently altering hair color agents include direct dyes. Preferably, the compositions comprise at least one permanently or semi-permanently altering hair color agent.It should be noted, however, that compositions disclosed herein may be free or substantially free of hair color-modifying agents, but may still provide benefits such as hair shine, in addition to increased strength and / or elasticity of the hair fibers, and / or other cosmetic benefits as described herein. Therefore, unless a composition expressly includes a hair color-modifying agent in a quantity sufficient to alter hair color, the composition should not be interpreted as requiring a color-modifying effect. hair color, even if it is designated as a "hair color base" or a "hair color changing" composition.

[0037] Oxidative dye compounds include dye precursors (also called oxidation bases) and couplers. Oxidative dye compounds can be used in the form of salts, solvates, and / or solvates of salts.

[0038] The addition salts of the oxidation dye compounds present in the composition according to the invention can be chosen from addition salts with an acid, such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, methanesulfonates, phosphates and acetates, and addition salts with a base, such as sodium hydroxide, potassium hydroxide, aqueous ammonia, amines or alkanolamines.

[0039] Furthermore, the solvates of the oxidation dye compounds represent more particularly the hydrates of said oxidation bases and / or the combination of said oxidation bases with a linear or branched alcohol in the C4 to C5 group, such as methanol, ethanol, isopropanol, or n-propanol. In some embodiments, the solvates are hydrates.

[0040] The compositions comprise one or more oxidizing bases when the composition is a composition for permanent or semi-permanent hair dyeing or coloring. Useful, but not limiting, oxidizing bases include para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, and heterocyclic bases, and the addition of their salts, their solvates, and the solvates of their salts.

[0041] Among the para-phenylenediamines, non-limiting examples that may be mentioned include para-phenylenediamine, para-toluenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N,N-dimethyl-para-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-bis([3-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis([3-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis([3-hydroxyethyl)amino-2-chloroaniline, 2-[3-hydroxyethyl-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-y-hydroxypropyl-para-phenylenediamine;2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-([3-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-dimethyl-3-methyl-para-phenylenediamine, N-ethyl-N-([3-hydroxyethyl)-para-phenylenediamine, N-([3,y-dihydroxypropyl)-para-phenylenediamine, N-; (4'-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-P-hydroxyethyloxy-para-phenylenediamine, 2-[3-acetylaminoethyloxy-para-phenylenediamine, N-([3-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-[>-hydroxyethylamino-5-aminotoluene and 3-hydroxy-l-(4'-aminophenyl)pyrrolidine, as well as their addition salts, their solvates and the solvates of their salts.

[0042] Among the para-phenylenediamines mentioned above, para-phenylenediamine, para-toluenediamine, 2-isopropyl-para-phenylenediamine, 2-[3-hydroxyethyl-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, 2-[3-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis([3-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine and 2-[3-acetylaminoethyloxy-para-phenylenediamine, as well as their addition salts, their solvates and the solvates of their Salts are particularly useful.

[0043] Among the bis(phenyl)alkylenediamines, non-limiting examples that may be mentioned include N,N'-bis([3-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, N,N'-bis([3-hydroxyethyl)-N,N'-bis(4'-aminophenyl)ethylenediamine, N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis([3-hydroxyethyl)-N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis(4-methylaminophenyl)tetramethylenediamine, N,N'-bis(ethyl)-N,N'-bis(4'-amino-3'-methylphenyl)ethylenediamine and 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, as well as their salts addition, their solvates and the solvates of their salts.

[0044] Among the para-aminophenols, non-limiting examples that may be mentioned include para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(|3-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol, as well as their addition salts, their solvates and the solvates of their salts.

[0045] Among the ortho-aminophenols, non-limiting examples that may be cited include 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-acetamido-2-aminophenol, as well as their addition salts, their solvates and the solvates of their salts.

[0046] Among heterocyclic bases, non-limiting examples that can be cited include pyridine derivatives, pyrimidine derivatives and pyrazole derivatives.

[0047] Among the pyridine derivatives, 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine, 3,4-diaminopyridine, and their addition salts, their solvates, and the solvates of their salts may be mentioned without limitation.

[0048] Other pyridine oxidation bases that are useful in the present invention are the 3-aminopyrazolo[l,5-a]pyridine oxidation bases or their addition salts described. Non-limiting examples that can be mentioned include pyrazolo[l,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[l,5-a]pyrid-3-ylamine, 2-(morpholine-4-yl)pyrazolo[l,5-a]pyrid-3-ylamine, 3-aminopyrazolo[l,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[l,5-a]pyrid-3-ylamine, (3-aminopyrazolo[l,5-a]pyrid-7-yl)methanol, 2-(3-aminopyrazolo[l,5-a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[l,5-a]pyrid-7-yl)ethanol, (3-aminopyrazolo[l,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[l,5-a]pyridine, 3,4-diaminopyrazolo[l,5-a]pyridine, pyrazolo[l,5-a]pyridine-3,7-diamine, 7-(morpholin-4-yl)pyrazolo[l,5-a]pyrid-3-ylamine, pyrazolo[l,5-a]pyridine-3,5-diamine, 5-(morpholin-4-yl)pyrazolo[l,5-a]pyrid-3-ylamine, 2-[(3-aminopyrazolo[l,5-a]pyrid-5-yl)(2-hydroxyethyl)amino]ethanol, 2-[(3-aminopyrazolo[l,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[l,5-a]pyridin-5-ol, 3-aminopyrazolo[l,5-a]pyridin-4-ol, 3-aminopyrazolo[l,5-a]pyridin-6-ol, 3-aminopyrazolo[l,5-a]pyridin-7-ol and 2-(3-aminopyrazolo[l,5-a]pyridin-2-yl)oxyethanol, as well as their addition salts, their solvates and the solvates of their salts. ,

[0049] Among the pyrimidine derivatives, mention may be made in a non-limiting manner of 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and their addition salts and their tautomeric forms, when a tautomeric equilibrium exists.

[0050] Non-limiting examples of pyrazole derivatives that may be mentioned include 4,5-diamino-l-methylpyrazole, 4,5-diamino-l-([3-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-l-(4'-chlorobenzyl)pyrazole, 4,5-diamino-l,3-dimethylpyrazole, 4,5-diamino-3-methyl-l-phenylpyrazole, 4,5-diamino-l-methyl-3-phenylpyrazole, 4-amino-l,3-dimethyl-5-hydrazinopyrazole, l-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-l-methylpyrazole, 4,5-diamino-l-tert-butyl-3-methylpyrazole, 4,5-diamino-l-([3-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-l-ethyl-3-methylpyrazole, 4,5-diamino-l-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-l-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-l-methylpyrazole, 4,5-diamino-3-hydroxymethyl-l-isopropylpyrazole, 4,5-diamino-3-methyl-l-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-l,3-dimethylpyrazole, 3,4,5-triaminopyrazole, L-Methyl-3,4,5-triaminopyrazole, 3,5-diamino-L-methyl-4-methylaminopyrazole, and 3,5-diamino-4-([3-hydroxyethyl)amino-L-methylpyrazole, as well as their addition salts, solvates, and solvates of their salts. 4,5-Diamino-L-([3-methoxyethyl)pyrazole may also be used.

[0051] Les dérivés de pyrazole non limitatifs qui peuvent être mentionnés incluent les diamino-N,N-dihydropyrazolopyrazolones ainsi que les composés suivants et les sels d’addition de ceux-ci : 2,3-diamino-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2-amino-3-ethylamino-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2-amino-3-isopropylamino-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2-amino-3-(pyrrolidin-l-yl)-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 4,5-diamino-1,2-dimethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-d ihydropyrazol-3-one, 4,5-diamino-1,2-bis(2-hydroxyethyl)-1,2-dihydropyrazol-3-one, 2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2-amino-3-dimethylamino-6,7-dihydro-lH,5H-pyrazolo[l,2-a]pyrazol-l-one, 2,3-diamino-5,6,7,8-tetrahydro-lH,6H-pyridazino[l,2-a]pyrazol-l-one, 4-amino-l,2-diethyl-5-(pyrrolidin-l-yl)-l,2-dihydropyrazol-3-one, 4-amino-5-(3-dimethyla minopyrrolidin-1 -yl)-1,2-diethyl-1,2-Dihydropyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, their salts, their solvates and the solvates of their salts.

[0052] Heterocyclic bases that may be used include, for example, 4,5-diamino-l-([3-hydroxyethyl)pyrazole and / or 2,3-diamino-6,7-dihydro-lH,5H-py razolo[l,2-a]pyrazol-l-one and / or 2-(3-aminopyrazolo[l,5-a]pyridin-2-yl)oxyethanol and / or a salt of these, a solvate of these, and a solvate of their salts.

[0053] In certain particular embodiments, the oxidation base(s) are chosen from among para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases and corresponding addition salts, their solvates and / or solvates of their salts, and mixtures thereof; more preferably from 2-methoxymethyl-para-phenylenediamine, 2-[>-hydroxyethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, and their addition salts, their solvates and / or solvates of their salts, and mixtures thereof.

[0054] In another embodiment, the basic hair color composition is free of oxidation bases selected from para-phenylenediamine, para-toluenediamine, their addition salts, their solvates and the solvates of its salts.

[0055] Oxidation bases are generally present in a hair color base composition to permanently or semi-permanently modify hair color in a total quantity ranging from about 0.0001% to about 10 %, from about 0.005% to about 7%, or from about 0.1% to about 4% by weight, relative to the total weight of the base hair color composition.

[0056] The hair color base composition may also include one or more couplers, which may be selected from those conventionally used for dyeing keratin fibers. In at least some embodiments, the hair color base compositions intended to permanently or semi-permanently modify hair color include one or more couplers in addition to one or more oxidation bases.

[0057] In some embodiments, the couplers are chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers and heterocyclic couplers, and also addition salts of these, and / or solvates of these, and / or solvates of their salts.

[0058] Non-limiting examples that may be mentioned include 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 1-hydroxy-3-aminobenzene, 1-methyl-2-hydroxy-4-[3-hydroxyethylaminobenzene, 4-amino-2-hydroxytoluene, 5-amino-6-chloro-2-methylphenol, 2,4-diamino-1-([3-hydroxyethyloxy)benzene, 2-amino-4-(|3-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, 1-[3-hydroxyethylamino-3,4-methylenediamine] Ioxybenzene, α-naphthol, 2-Methyl-1-naphtol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 5-methoxy-6-hydroxyindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 2-amino-4-hydroxyethylaminoanisole, 3-amino-6-methoxy-2-methylaminopyridine, 3,5-diamino-2,6-dimethoxypyridine, 1N-([3-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis([3-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 2-chloro-3,5-diaminopyridine, 2-chloro-3,5-diamino-6-methoxypyridine, 2-chloro-3,5-diamino-6-methylpyridine, 1H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 4-(3,5-diaminopyridin-2-yl)-1-(2-hydroxyethyl)-1-methylpiperazine-1-ium chloride, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, 2,4,6-trimethoxyaniline hydrochloride, 2,6-dimethyl[3,2-c]-1,2,4-triazole, 6-methylpyrazolo[1,5-a]benzhnidazole and 2,6-diaminopyrazine, their addition salts, and / or their solvates,and / or the solvates of their salts, and their mixtures.

[0059] In various embodiments, the coupler(s) are chosen from 1,3-Dihydroxybenzene, 1,3-Dihydroxy-2-methylbenzene, 4-chloro-l,3-dihydroxybenzene, l-hydroxy-3-aminobenzene, l-methyl-2-hydroxy-4-P-hydroxyethylaminobenzene, 4-amino-2-hydroxytoluene, 5-amino-6-chloro-2-methylphenol, 2,4-diamino-l-([3-hydroxyethyloxy)benzene, a-naphtol, 6-hydroxyindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3-amino-6-methoxy-2-methylaminopyridine, 2-amino-4-hydroxyethyl laminoanisole, rhydroxyethyl-3,4-methylenedioxyaniline, 2-amino-5-ethylphenol, their addition salts, and / or their solvates, and / or the solvates of their salts, and mixtures thereof.

[0060] For example, in some embodiments, the couplers are chosen from 3-amino-6-methoxy-2-methylaminopyridine, 6-hydroxybenzomorpholine, 2,4-diamino-l-([3-hydroxyethyloxy)benzene, 2-amino-3-hydroxypyridine, 5-amino-6-chloro-2-methylphenol, l-methyl-2-hydroxy-4-[3-hydroxyethylaminobenzene, 2-amino-4-hydroxyethylaminoanisole, rhydroxyethyl-3,4-methylenedioxyaniline, 2-amino-5-ethylphenol and l-hydroxy-3-aminobenzene, their addition salts, and / or their solvates, and / or the solvates of their salts, and mixtures thereof.

[0061] In general, the addition salts of the couplers that can be used include those selected from addition salts with an acid such as hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates, as well as addition salts with a base such as sodium hydroxide, potassium hydroxide, aqueous ammonia, amines or alkanolamines.

[0062] Furthermore, the solvates more particularly represent the hydrates of these couplers and / or the combination of these couplers with a linear or branched alcohol in the C4 to C5 groups, such as methanol, ethanol, isopropanol, or n-propanol. In some embodiments, the solvates are hydrates.

[0063] Optionally, the couplers may be chosen from 6-hydroxybenzomorpholine, its addition salts, its solvates and / or the solvates of its salts, hydroxyethyl-3,4-methylenedioxyaniline, its addition salts, its solvates and / or the solvates of its salts, 2-amino-5-ethylphenol, its addition salts, its solvates and / or the solvates of its salts, and mixtures thereof.

[0064] In a particular embodiment, the composition according to the invention is free from oxidation couplers selected from resorcinol, 2-methylresorcinol, 4-chlororesorcinol, their addition salts, their solvates and the solvates of their salts.

[0065] If present, the total quantity of couplers in a hair colour base composition intended to permanently or semi-permanently change the colour of hair can range from about 0.0001% to about 10%, for example from about 0.005% to about 7%, or from about 0.1% to about 4% by weight, relative to the total weight of the colour base composition.

[0066] Optionally, the compositions as disclosed include one or more direct dyes. The term "direct dye" refers to natural and / or synthetic dyes, other than oxidative dyes. These are dyes that will be deposited superficially on the hair fiber. The direct dyes that may be used may be anionic (acidic), cationic (basic), or nonionic (neutral).

[0067] Synthetic direct dyes are, for example, chosen from among the dyes conventionally used for direct dyeing, and among which we can mention all the commonly used aromatic and / or non-aromatic dyes, such as nitrobenzene, azo, hydrazono, nitro(hetero)aryl, tri(hetero)arylmethane, (poly)methine, carbonyl, azine, porphyrin, metalloporphyrin, quinone and in particular anthraquinone, indoamine and phthalocyanine direct dyes, or combinations thereof.

[0068] Among the direct nitrobenzene dyes, the following may be mentioned: 1,4-diamino-2-nitrobenzene, l-amino-2-nitro-4-[3-hydroxyethylaminobenzene, l-amino-2-nitro-4-bis([3-hydroxyethyl)aminobenzene, 1,4-bis([3-hydroxyethylamino)-2-nitrobenzene, l-[3-hydroxyethylamino-2-nitro-4-bis([3-hydroxyethylamino)benzene, l-[3-hydroxyethylamino-2-nitro-4-aminobenzene, l-[3-hydroxyethylamino-2-nitro-4-(ethyl)([3-hydroxyethyl)aminobenzene, l-amino-3-methyl-4-[3-hydroxyethylamino- 6-nitrobenzene, l-amino-2-nitro-4-hydroxyethylamino-5-nitrobenzene, l,2-dichlorobenzene-4-aminobenzene, l-amino-2-[3-hydroxyethylamino-5-nitrobenzene, l,2-bis([3-hydroxyethylamino)-4-nitrobenzene, l-amino-2-tris(hydroxymethyl)methylamino-5-nitrobenzene, l-hydroxy-2-amino-5-nitrobenzene, l-hydroxy-2-amino-4-nitrobenzene, l-hydroxy-3-nitro-4-aminobenzene, l-hydroxy-2-amino-4,6-dinitrobenzene, l-[3-hydroxyethyloxy-2-[3-hydroxyethylamino-5-nitrobenzene, l-methoxy-2-[3-hydroxyethylamino-5-nitrobenzene, l-[3-hydroxyoxy-3-ethylamino-4-nitrobenzene, l-[3-hydroxyethylamino-4-amino-4-nitrobenzene, l-dioxyethylamino-4-[3-benzene, l-[3-hydroxyethylamino-4-[3,Y-dihydroxypropyloxy-2-nitrobenzene, l-[3,Y-dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene, l-[>-hydroxyethylamino- 4-trifluoromethyl-2-nitrobenzene, 1-|3-hydroxyethylamino-3-methyl-2-nitrobenzene, l-[3-aminoethylamino-5-methoxy-2-nitrobenzene, l-hydroxy-2-chloro-6-ethylamino-4-nitrobenzene, l-hydroxy-2-chloro-6-amino-4-nitrobenzene, 1-hydroxy- 6-bis([3-hydroxyethyl)amino-3-nitrobenzene, the l-[3-hydroxyamino-2-ethylamino- 4-nitrobenzene, l-hydroxy-2-ethylamino-4-nitrobenzene, or combinations thereof.

[0069] Among the azo direct dyes, the following may be mentioned: Basic Red 51, Basic Orange 31, Disperse Red 17, Acid Yellow 9, Acid Black 1, Basic Red 22, Basic Red 76, Basic Yellow 57, Acid Yellow 36, Acid Orange 7, Acid Red 33, Acid Red 35, Acid Yellow 23, Acid Orange 24, Disperse Black 9, Basic Brown 16, Basic Brown 17, or combinations thereof.

[0070] Among the Hydrazono direct dyes, we can mention Basic Yellow 87.

[0071] Among the direct nitroaryl dyes, the following may be mentioned: HC Blue 2, HC Yellow 2, HC Red 3, 4-hydroxypropylamino-3-nitrophenol, N,N'-bis(2-hydroxyethyl)-2-nitrophenylenediamine, or combinations thereof.

[0072] Among the direct triarylmethane dyes, the following may be mentioned: Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 4, Basic Violet 14, Basic Blue 1, Basic Blue 7, Basic Blue 26, Basic Green 1, Basic Blue 77 (also known as HC Blue 15), Acid Blue 1; Acid Blue 3; Acid Blue 7, Acid Blue 9; Acid Violet 49; Acid Green 3; Acid Green 5; Acid Green 50, or combinations thereof.

[0073] Among the quinone direct dyes, the following may be mentioned: Disperse Red 15, Solvent Violet 13, Acid Violet 43, Disperse Violet 1, Disperse Violet 4, Disperse Blue 1, Disperse Violet 8, Disperse Blue 3, Disperse Red 11, Acid Blue 62, Disperse Blue 7, Basic Blue 22, Disperse Violet 15, Basic Blue 99, as well as the following compounds: 1 -N-methylmorpholiniumpropylamino-4-hydroxyanthraquinone, 1 -aminopropylamino-4-methylaminoanthraquinone, 1-aminopropylaminoanthraquinone, 5-[3-hydroxyethyl-1,4-diaminoanthraquinone, 2-aminoethylaminoanthraquinone, l,4-bis([3,y-dihydroxypropylamino)anthraquinone, Acid Blue 25, Acid Blue 43, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Mordant Red 3, Acid Black 48, HC Blue 16, or combinations thereof.

[0074] Among the direct azine dyes, we can mention Basic Blue 17, Basic Red 2 or their combinations.

[0075] Among the direct indoamine dyes, the following may be mentioned: 2-[3-hydroxyethylamino-5-[bis([3-4'-hydroxyethyl)amino]anilin-l,4-benzoquinone, 2-[3-hydroxyethylamino-5-(2'-methoxy-4'-amino)anilin-l,4-benzoquinone, 3-N-(2'-chloro-4'-hydroxy)phenylacetylamino-6-methoxy-l,4-benzoquinoneimine, 3-N-(3'-chloro-4'-methylamino)phenylureido-6-methyl-l,4-benzoquinoneimine, 3-[4'-N-(ethylcarbamylmethyl)amino]phenylureido-6-methyl-l,4-benzoquinoneimine, or combinations thereof.

[0076] Natural direct dyes are chosen, for example, from laxone, juglone, indigo, leuco indigo, indirubin, isatin, hennotanic acid, alisarine, carthamine, morin, purpurine, carminic acid, kermesic acid, lactic acid, purpurogalline, protocatechaldehyde, curcumin, spinulosin, apigenidine, orceins, carotenoids, betanin, chlorophylls, monascus, polyphenols, ortho-diphenols, or combinations thereof.

[0077] Among the useful ortho-diphenols according to the invention, the following may be mentioned: catechin, quercetin, brazilin, hematein, hematoxylin, chlorogenic acid, caffeic acid, gallic acid, L-DOPA, cyanidin, (-)-epicatechin, (-)-epigallocatechin, (-)-epigallocatechin 3-gallate (EGCG), isoquercetin, pomiferin, escuetin, 6,7-dihydroxy-3-(3-hydroxy-2,4-dimethoxyphenyl)coumarin, santalin A and B, mangiferin, butein, maritimetin, sulfitein, robtein, betanidine, pericampylinone A, theaflavin, proanthocyanidin A2, proanthocyanidin B2, proanthocyanidin Cl, procyanidins DP 4-8, tannic acid, purpurogallin, 5,6-dihydroxy-2-methyl-1,4-naphthoquinone, alizarin, wedelolactone and natural extracts containing them, or combinations thereof.

[0078] When the hair color base composition includes one or more direct dyes, the total amount of direct dyes can range from about 0.001% to about 20%, for example from about 0.005% to about 15%, from about 0.01% to about 10%, from about 0.05% to about 5%, or from about 0.1% to about 3% by weight, relative to the weight of the hair color base composition. Solvents

[0079] The basic hair color compositions according to the disclosure include a cosmetically acceptable solvent. The solvent may include water, non-aqueous solvents, or mixtures thereof.

[0080] In some embodiments, the solvent comprises, consists essentially of, or consists of water. The total amount of water in the hair color base compositions may vary depending on the type of composition and the desired consistency, viscosity, etc.

[0081] In certain embodiments, the basic hair color composition comprises one or more non-aqueous solvents, other than or in addition to the ingredients mentioned above. For example, C1-C4 alcohols, organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols other than those described above, glycols, vegetable oils, mineral oils, liposomes, laminar lipid materials, or any mixture thereof. Non-limiting examples of solvents that may be used include alkane polyols such as glycerin, 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, hexylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 2-butene-l,4-diol, 2-ethyl-l,3-hexanediol, 2-methyl-2,4-pentanediol, caprylyl glycol, 1,2-hexanediol, 1,2-pentanediol and 4-methyl-l,2-pentanediol; alkyl alcohols containing 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol and isopropanol (isopropyl alcohol); glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-isopropyl ether, diethylene glycol mono-isopropyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol mono-t-butyl ether, diethylene glycol mono-t-butyl ether, 1-methyl methoxybutanol, propylene glycol monomethyl ether,propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-isopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether and dipropylene glycol mono-isopropyl ether; 2-pyrrolidone, N-methyl-2-pyrrolidone, l,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbitol, sorbitan, acetin, diacetinate, triacetin, sulfolane, and mixtures thereof. At least in some embodiments, the hair color base compositions contain water and at least one, for example two or more, additional solvent selected from non-aqueous solvents.

[0082] The solvent may be present in the hair color base composition in an amount ranging from about 20% to about 90% by weight.relative to the total weight of the composition, including all ranges and sub-ranges between them. For example, in some embodiments, the total amount of solvent may vary from approximately 35% to approximately 85%, for example from approximately 40% to approximately 80%, from approximately 45% to approximately 75%, or from approximately 50% to approximately 70% by weight, relative to the total weight of the base hair color composition.

[0083] In some embodiments, the solvent is mainly or entirely contained in water. For example, in various embodiments, the solvent comprises from about 80% to about 100%, such as from about 80% to about 99%, from about 80% to about 98%, from about 80% to about 97%, from about 80% to about 96%, from about 80% to about 95%, from about 80% to about 90%, from about 85% to about 100%, from about 85% to about 99%, from about 85% to about 98%, from about 85% to about 97%, from about 85% to about 96%, from about 85% to about 95%, from about 85% to about 90%, from about 90% to about 100%, from about 90% to about 99%, from about 90% to about 98%, of about 90% to about 97%, of about 90% to about 96%, or of about 90% to about 95% water by weight, relative to the total weight of the solvent. Additional components

[0084] The hair color base compositions according to the disclosure optionally include one or more additional components. It has been found that the additional components described herein provide additional benefits to the hair, the hair color-modifying base composition, and / or the hair color-modifying composition, and / or the hair color-modifying process, when present in various combinations and amounts. The additional components may be selected from fatty alcohols, colloidal agents, fatty compounds other than fatty alcohols, alkalizing agents, surfactants, conditioning polymers, amino acids other than glycine, and auxiliary agents.

[0085] Optionally, the hair color base compositions according to the disclosure include at least one fatty alcohol. Suitable fatty alcohols include those having a fatty alcohol group with a chain of at least five carbon atoms, such as 8 to 50 carbon atoms, 8 to 40 carbon atoms, 8 to 30 carbon atoms, 8 to 22 carbon atoms, 12 to 22 carbon atoms, or 16 to 18 carbon atoms, including all ranges and subranges in between. In some cases, the fatty alcohol group has a carbon chain of 10 to 20 carbon atoms or 10 to 18 carbon atoms. Fatty alcohols may be selected from polyethylene glycol ethers, such as those having a fatty alcohol group with a carbon chain of 12 to 16 or 12 to 14 carbon atoms.

[0086] In some embodiments, the fatty alcohol portion is optionally hydrogenated (e.g., stearyl, lauryl, cetyl, cetearyl); however, the fatty alcohol may contain one or more double bonds (e.g., oleyl). Non-limiting examples of fatty alcohols include decyl alcohol, undecyl alcohol, dodecyl alcohol, myristyl alcohol, lauryl alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol (cetyl and stearyl alcohols), isostearyl alcohol, isocetyl alcohol, behenyl alcohol, linalool, oleyl alcohol, cis-4-t-butylohexanol, isotridecyl alcohol, myricyl alcohol, or mixtures thereof.In some cases, fatty alcohols may be chosen from myristyl alcohol, lauric alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, isostearyl alcohol, oleyl alcohol, isotridecyl alcohol, or mixtures of two or more of these alcohols, for example cetearyl alcohol and oleyl alcohol.

[0087] Fatty alcohol can be saturated or unsaturated. In some embodiments, the basic hair color compositions comprise at least one fatty alcohol. unsaturated, and in other embodiments, the basic compositions of hair color comprise at least one unsaturated fatty alcohol and at least one saturated fatty alcohol.

[0088] The saturated liquid fatty alcohols given by way of example may be branched or straight-chain and may contain in their structure at least one aromatic or non-aromatic ring. However, in some cases, the fatty alcohols are acyclic. Non-limiting examples of saturated liquid fatty alcohols include cetyl alcohol, stearyl alcohol, cetearyl alcohol, octyldodecanol, isostearyl alcohol, and 2-hexyldecanol.

[0089] An unsaturated liquid fatty alcohol given by way of example may include in its structure at least one double or triple bond. For example, fatty alcohols may include several double bonds (such as 2 or 3 double bonds), which may be conjugated or non-conjugated. Unsaturated fatty alcohols may be linear or branched and may be acyclic or include in their structure at least one aromatic or non-aromatic ring. Liquid unsaturated fatty alcohols may include, or be selected from, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, and undecylenyl alcohol.

[0090] If present, the total amount of fatty alcohols may vary, but is generally in the range of about 1% to about 25%, for example about 2% to about 22%, about 3% to about 20%, about 4% to about 18%, or about 5% to about 16% by weight, relative to the total weight of the hair color base composition. For example, in various embodiments, the basic hair color composition comprises a total amount of fatty alcohols ranging from approximately 2% to approximately 20%, from approximately 2% to approximately 18%, from approximately 2% to approximately 16%, from approximately 2% to approximately 15%, from approximately 2% to approximately 14%, from approximately 2% to approximately 13%, from approximately 2% to approximately 12%, from approximately 2% to approximately 11%, from approximately 2% to approximately 10%, from approximately 2% to approximately 9%, from approximately 3% to approximately 20%, from approximately 3% to approximately 18%, from approximately 3% to approximately 16%, from approximately 3% to approximately 15%, from approximately 3% to approximately 14%, from approximately 3% to approximately 13%,from approximately 3% to approximately 12%, from approximately 3% to approximately 11%, from approximately 3% to approximately 10%, from approximately 3% to approximately 9%, from approximately 4% to approximately 20%, from approximately 4% to approximately 18%, from approximately 4% to approximately 16%, from approximately 4% to approximately 15%, from approximately 4% to approximately 14%, from approximately 4% to approximately 13%, from approximately 4% to approximately 12%, from approximately 4% to approximately 11%, from approximately 4% to approximately 10%, from approximately 4% to approximately 9%, from approximately 5% to approximately 20%, from approximately 5% to approximately 18%, from approximately 5% to approximately 16%, from approximately 5% to approximately 15%, from approximately 5% to approximately 14%, from approximately 5% to approximately 13%, from approximately 5% to approximately 12%, from approximately 5% to approximately 11%, from approximately 5% to approximately 10%, from approximately 5% to approximately 9%, from approximately 6% to approximately 20%, from approximately 6% to approximately 18%, from approximately 6% to approximately 16%, from approximately 6% to approximately 15%, from approximately 6% to approximately 14%, from approximately 6% to approximately 13%, from approximately 6% to approximately 12%, from approximately 6% to approximately 11%, from approximately 6% to approximately 10%, from approximately 6% to approximately 9%, from approximately 7% to approximately 20%, from approximately 7% to approximately 18%, from approximately 7% to approximately 16%, from approximately 7% to approximately 15%, from approximately 7% to approximately 14%, from approximately 7% to approximately 13%, from approximately 7% to approximately 12%, from approximately 7% to approximately 11%, from approximately 7% to approximately 10%, from approximately 7% to approximately 9%, from approximately 8% to approximately 18%, from approximately 8% to approximately 16%, from approximately 8% to approximately 15%, from approximately 8% to approximately 14%, from approximately 8% to approximately 13%, from approximately 8% to approximately 12%, from approximately 8% to approximately 11%, from approximately 8% to approximately 10%, from approximately 8% to approximately 9%, from approximately 9% to approximately 20%, from approximately 9% to approximately 18%, from approximately 9% to approximately 16%, from approximately 9% to approximately 15%from approximately 9% to approximately 14%, from approximately 9% to approximately 13%, from approximately 9% to approximately 12%, from approximately 9% to approximately 11%, or from approximately 9% to approximately 10% by weight, relative to the total weight of the hair color base composition. For example, the hair color base composition may include at least one saturated fatty alcohol and / or at least one unsaturated fatty alcohol, for example cetyl alcohol, stearyl alcohol, cetearyl alcohol, and / or oleyl alcohol, in any of the above quantities.

[0091] In some embodiments, however, the total amount of fatty alcohols may include any of the aforementioned ranges where the upper limit is not more than about 15%, such as not more than about 14%, not more than about 13%, not more than about 12%, not more than about 11%, or not more than about 10% by weight, relative to the total weight of the composition. By way of non-limiting example, the total amount of fatty alcohols may vary from about 1% to about 15%, for example, from about 2% to about 14%, from about 3% to about 13%, from about 4% to about 12%, or from about 5% to about 11% by weight, relative to the total weight of the base hair color composition.

[0092] In certain embodiments, a hair color base composition according to the disclosure comprises at least two fatty alcohols, for example, at least one saturated fatty alcohol and at least one unsaturated fatty alcohol. By way of example, the compositions may comprise at least one saturated fatty alcohol selected from cetyl alcohol, stearyl alcohol, and / or cetearyl alcohol, and at least one unsaturated fatty alcohol, which may include oleyl alcohol.

[0093] Hair colour base compositions may also include one or more colloidal agents. Surprisingly, by including such compounds in certain quantities, the fatty alcohol content can be reduced while maintaining the stability and integrity of the composition.

[0094] Useful, but not limiting, examples of colloidal agents include hydrophilic polymers, such as, for example, cellulose and its derivatives, e.g., carboxymethylcellulose, hydroxypropylcellulose, methylcellulose, hydroxyethylcellulose, and hydroxypropylmethylcellulose, as well as modified celluloses, such as those modified by alkyl group grafting. Hydroxyethylcellulose and / or cetyl hydroxyethylcellulose, for example, may be chosen.Other useful, but not limited, examples of colloidal agents include seaweed extracts such as agaric agar, carrageenans, and alginates; seed extracts such as locust bean gum, guar gum, and modified guar gums, especially those modified by alkyl group grafting; plant exudates such as gum arabic, karaya gum, tragacanth gum, and gatty gum; water-soluble synthetic gelling polymers such as cross-linked polyacrylic acids; fruit extracts such as pectins; and microbial exudates such as xanthan gum.

[0095] The total amount of colloidal agents can vary and may range, for example, from about 0.01% to about 2%, or from about 0.05% to about 1.5%, from about 0.1% to about 1.25%, from about 0.2% to about 1%, from about 0.25% to about 0.75%, or from about 0.3% to about 0.7% by weight, relative to the total weight of the hair color base composition. In some embodiments, the total amount of colloidal agents is in the range of about 0.01% to about 1%, or from about 0.05% to about 0.75%, from about 0.1% to about 0.5%, or from about 0.2% to about 0.4% by weight, relative to the total weight of the hair color base composition.

[0096] However, in other embodiments, the total amount of colloidal agents may range from approximately 0.1% to approximately 1.5%, as well as from approximately 0.2% to approximately 1%, from approximately 0.3% to approximately 0.9%, from approximately 0.2% to approximately 0.8%, or from approximately 0.45% to approximately 0.75% by weight, relative to the total weight of the hair color base composition. In some embodiments, when such amounts of colloidal agent are chosen, it may be possible to use lower amounts of fatty alcohols without affecting the stability and integrity of the hair color base composition.Thus, in some embodiments, the total quantity of fatty alcohols may include any of the aforementioned ranges described for fatty alcohols in which the upper limit is not more than about 15%, such as not more than about 14%, not more than about 13%, not more than about 12%, not more than about 11%, or not more than about 10% by weight, relative to the total weight of the base composition of hair colour.

[0097] By way of non-limiting example, hair color base compositions may comprise one or more colloidal agents, for example hydroxyethyl cellulose and / or cetyl hydroxyethyl cellulose, in a total amount ranging from about 0.1% to about 1.5%, from about 0.2% to about 1%, from about 0.3% to about 0.9%, from about 0.2% to about 0.8%, or from about 0.45% to about 0.75% by weight, relative to the total weight of the hair color base composition, and one or more fatty alcohols, for example, at least one saturated fatty alcohol and / or at least one unsaturated fatty alcohol, for example selected from cetyl alcohol, stearyl alcohol, cetearyl alcohol, and / or oleyl alcohol, the total amount of fatty alcohols not exceeding about 15% or about 12%, for example in the range of approximately 1% to approximately 15%, approximately 3% to approximately 14%, approximately 5% to approximately 13%, approximately 6% to approximately 12%, approximately 7% to approximately 11%or approximately 8% to approximately 10% by weight, relative to the total weight of the base hair color composition.

[0098] The hair color base compositions according to the disclosure may optionally include at least one additional fatty compound other than fatty alcohols. By way of non-limiting example, fatty compounds other than fatty alcohols may be selected from fatty acids and fatty acid esters, oils of animal, vegetable or mineral origin, silicone oils, lower alkanes, or combinations of two or more of these.

[0099] Suitable fatty acids that may be included in the basic compositions may have approximately 10 to approximately 30 carbon atoms, approximately 12 to approximately 22 carbon atoms, or approximately 16 to approximately 22 carbon atoms. These fatty acids may be straight-chain or branched-chain and may be saturated or unsaturated. Also included are diacids, triacids, and other multiple acids that meet the carbon number requirement in this document. Salts of these fatty acids are also included in this document. Non-limiting examples of fatty acids include myristic acid, lauric acid, palmitic acid, stearic acid, behenic acid, arichidonic acid, oleic acid, isostearic acid, sebacic acid, or mixtures thereof. In some embodiments, the fatty acids may include myristic acid, palmitic acid, stearic acid, or mixtures thereof.

[0100] In various embodiments, the hair color base compositions according to the disclosure may further comprise one or more vegetable oils. As used herein, the term "vegetable oils" refers to oils derived from a plant, for example, seed or fruit oils.

[0101] In certain embodiments, suitable vegetable oils are selected from hydrocarbon-based oils derived from plants and / or of vegetable origin. Non-exhaustive examples of plant-derived and / or vegetable-based oils include: acai oil, almond oil, aloe vera oil, andiroba oil, annatto oil, avocado oil, babassu oil, borage oil, Brazil nut oil, buriti oil, camellia oil, coffee oil, copaiba oil, emu oil, passion fruit oil, almond oil, castor oil, coconut oil, grapeseed oil, jojoba oil, macadamia nut oil, rosehip oil, ajwain oil, angelica root oil, anise oil, argan oil, asafetida oil, balsamic oil, basil oil, berry oil, bergamot oil, black pepper oil, bouchou oil, birch oil, camphor, cannabis oil, caraway oil, and seed oil. cardamom, carrot seed oil, chamomile oil, calamus root oil, cinnamon oil, lemongrass oil, clary sage, clove leaf oil, coffee, coriander,balsam tansy oil, cranberry seed oil, cubeb, cumin oil, cypress, cypriol, curry leaf, davana oil, dill oil, elecampane, eucalyptus oil, fennel seed oil, fenugreek oil, fir, frankincense oil, galangal, geranium oil, ginger oil, goldenrod, grapefruit oil, grapeseed oil, henna oil, helichrysum, horseradish oil, hyssop, Idaho tansy, jasmine oil, juniper berry oil, lavender oil, lemon oil, Elionurus citreus, marjoram, melaleuca, lemon balm oil, mountain savory, mugwort oil, mustard oil, myrrh oil, myrtle, neem oil, neroli, nutmeg orange oil, oregano oil, iris oil, palo santo, parsley oil, patchouli oil, perilla oil, pennyroyal essence, peppermint oil, petitgrain, pine oil, plum oil, ravensara, red cedar, Roman chamomile, rose oil,Rosehip oil, rosemary oil, rosewood oil, sandalwood oil, sassafras oil, savory oil, schisandra oil, spikenard, spruce, star anise oil, tangerine, tarragon oil, tea tree oil, thyme oil, hemlock oil, turmeric, valerian, vetiver oil, cedarwood, wintergreen, yarrow oil, ylang-ylang, and zedoary oil.

[0102] In some cases, vegetable oils can be triesters of glycerides, which are generally triesters of fatty acids and glycerol, the fatty acids of which can have chain lengths ranging from C4 to C24, these chains being able to be saturated or unsaturated and linear or branched; These oils include, in particular, wheat germ oil, sunflower oil, grapeseed oil, sesame oil, corn oil, apricot oil, castor oil, shea butter, avocado oil, olive oil, soybean oil, sweet almond oil, palm oil, rapeseed oil, cottonseed oil, hazelnut oil, macadamia oil, jojoba oil, alfalfa oil, poppy oil, pumpkin seed oil, squash seed oil, blackcurrant oil, evening primrose oil, millet oil, and barley oil. quinoa oil, rye oil, safflower oil, candlenut oil, passionflower oil and rosehip oil.

[0103] In certain embodiments, a basic hair colour composition according to this disclosure includes at least one oil selected from saturated or unsaturated plant oils having fewer than 16 carbon atoms, for example, coconut oil, ricinus communis (castor) seed oil, butyrospermum parkii (shea) butter, palmitic acid, jojoba oil or a mixture thereof.

[0104] If present, the total amount of fatty compounds other than fatty alcohols is generally in the range of about 0.5% to about 20%, including all intermediate sub-ranges, such as about 0.5% to about 15%, about 0.5% to about 12%, about 0.5% to about 10%, about 0.5% to about 8%, about 0.5% to about 6%, about 0.5% to about 4%, about 0.5% to about 3%, about 1% to about 20%, about 1% to about 15%, about 1% to about 12%, about 1% to about 10%, about 1% to about 8%, about 1% to about 6%, about 1% to about 4%, about 2% to about 20% from about 2% to about 15%, from about 2% to about 12%, from about 2% to about 10%, from about 2% to about 8%, from about 2% to about 6%, or from about 2% to about 4% by weight, relative to the total weight of the base hair color composition.

[0105] The hair color base compositions according to the disclosure may optionally include at least one alkalizing agent. The alkalizing agents may be selected from organic and / or mineral alkalizing agents. In some embodiments, the hair color base compositions include only organic alkalizing agents. In other embodiments, the hair color base compositions include only mineral alkalizing agents. Still in other embodiments, the hair color base composition includes a combination of organic and mineral alkalizing agents.

[0106] By way of non-limiting examples, suitable organic alkanolamines may be selected from among the alkanolamines. In various embodiments, suitable alkanolamines may be selected from mono-, di-, or trialky amines, comprising one to three identical or different C1-C4 hydroxyalkyl radicals, ethylamines, ethyleneamines, quinoline, aniline, and cyclic amines, such as pyrroline, pyrrole, pyrrolidine, imidazole, imidazolidine, imidazolidinine, morpholine, pyridine, piperidine, pyrimidine, piperazine, triazine, and derivatives thereof. In some embodiments, the alkanolamine alkanolamines that may be mentioned include, without limitation: monoethanolamine (also known as ethanolamine or MEA), diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, 2-amino-2-methyl-1-propanol, and tris(hydroxymethylamino)methane. In some embodiments, the compositions include at least one alkalizing agent selected from the alkanolamines, such as monoethanolamine. Optionally, the organic alkalizing agent may comprise, consist substantially of, or consist of alkanolamines, for example, monoethanolamine.

[0107] By way of non-limiting examples, suitable mineral alkalizing agents may be selected from ammonia, ammonium carbonates, sodium carbonates, potassium carbonates, ammonium bicarbonates, sodium bicarbonates, potassium bicarbonates, ammonium hydroxides, sodium hydroxides, potassium hydroxides, salts thereof, hydrates thereof, or mixtures thereof. In some embodiments, the hair color base compositions include ammonia and / or ammonium hydroxide. Optionally, the mineral alkalizing agent may consist essentially of, or be composed of, ammonia and / or ammonium hydroxide.

[0108] In some embodiments, a hair color base composition disclosed herein comprises at least one organic alkalizing agent and at least one mineral alkalizing agent. In some embodiments, the at least one alkalizing agent comprises, is essentially composed of, or is composed of ammonia or ammonium hydroxide, alkanolamines, salts thereof, hydrates thereof, or combinations thereof. In at least one embodiment, a hair color base composition disclosed herein comprises both monoethanolamine and ammonium hydroxide.

[0109] In some embodiments, the alkalizing agents present in a hair color base composition may be selected only from organic alkalizing agents, and the hair color base composition is free or substantially free from mineral alkalizing agents, such as ammonia and / or ammonium hydroxide. In this case, the hair color base composition may comprise less than approximately 0.5%, less than approximately 0.4%, less than approximately 0.3%, less than approximately 0.2%, less than approximately 0.1%, or less than approximately 0.05% of mineral alkalizing agents. In some embodiments, the hair color base compositions disclosed herein comprise one or more agents organic alkalizing agents and are free or substantially free of ammonia and / or ammonium-based compounds.

[0110] In various embodiments, the quantity of organic or mineral alkalizing agents can vary independently from about 0.1% to about 10%, for example, from about 0.1% to about 9%, from about 0.1% to about 8%, from about 0.1% to about 7%, from about 0.1% to about 6%, from about 0.1% to about 5%, from about 0.1% to about 4%, from about 0.1% to about 3%, from about 0.1% to about 2%, from about 0.1% to about 1%, from about 0.5% to about 10%, from about 0.5% to about 9%, from about 0.5% to about 8%, from about 0.5% to about 7%, from about 0.5% to about 6%, from about 0.5% to about 5%, from about 0.5% to about 6%, from about 0.5% to about 5%, from about 0.5% to about 10 ... % to about 4%, from about 0.5% to about 3%, from about 0.5% to about 2%, from about 0.5% to about 1%, from about 0.75% to about 10%, from about 0.75% to about 9%, from about 0.75% to about 8%, from about 0.75% to about 7%, from about 0.75% to about 6%, from about 0.75% to about 5%, from about 0.75% to about 4%, from about 0.75% to approximately 3%, from approximately 0.75% to approximately 2%, from approximately 0.75% to approximately 1%, from approximately 1% to approximately 10%, from approximately 1% to approximately 9%, from approximately 1% to approximately 8%, from approximately 1% to approximately 7%, from approximately 1% to approximately 6%, from approximately 1% to approximately 5%, from approximately 1% to approximately 4%, from approximately 1% to approximately 3%, from approximately 1% to approximately 2%, from approximately 2% to approximately 10%, from approximately 2% to approximately 9%, from approximately 2% to approximately 8%, from approximately 2% to approximately 7%, from approximately 2% to approximately 6%, from approximately 2% to approximately 5%, from approximately 2% to approximately 4%, from approximately 2% to approximately 3%, from approximately 3% to approximately 10%, from approximately 3% to approximately 9%, from approximately 3% to approximately 8%, from approximately 3% to approximately 7%, from approximately 3% to approximately 6%, from approximately 3% to approximately 5%, from approximately 3% to approximately 4%, from approximately 4% to approximately 10%, from approximately 4% to approximately 9%, from approximately 4% to approximately 8%, from approximately 4% to approximately 7%, from approximately 4% to approximately 6%, from approximately 4% to approximately 5%, from approximately 5% to approximately 10%from approximately 5% to approximately 9%, from approximately 5% to approximately 8%, from approximately 5% to approximately 7%, or from approximately 5% to approximately 6% by weight, based on the total weight of the base hair color composition.

[0111] For example, in some embodiments, the alkalizing agents may comprise at least one organic alkalizing agent and at least one mineral alkalizing agent, with at least one organic alkalizing agent present in an amount ranging from about 0.1% to about 5%, such as from about 0.2% to about 4%, from about 0.3% to about 3%, from about 0.4% to about 2%, or from about 0.5% to about 1.5% by weight, relative to the total weight of the hair color base composition; and the at least one mineral alkalizing agent present in an amount ranging from about 0.5% to about 10%, such as from about 1% to about 8%, from about 2% to about 6%, or from about 3% to about 5% by weight, relative to the weight total of the base composition of hair colour. For example, the base composition of hair colour may include at least one alkanolamine, for example monoethanolamine, in combination with ammonia and / or ammonium hydroxide, in the aforementioned ranges.

[0112] By way of further example, in some embodiments, the alkalizing agent consists of, or consists substantially of, organic alkalizing agents, for example, alkanolamines, the total amount of organic alkalizing agents ranging from about 0.5% to about 10%, or from about 1% to about 9%, from about 2% to about 8%, or from about 3% to about 7% by weight, relative to the total weight of the hair color base composition. In such embodiments, the compositions may comprise less than about 0.5%, less than about 0.4%, less than about 0.3%, less than about 0.2%, less than about 0.1%, less than about 0.05%, or less than about 0.01% of mineral alkalizing agents, for example, ammonia and / or ammonium-based compounds.

[0113] In various embodiments, the hair color base compositions comprise one or more surfactants. For example, the compositions may comprise one or more nonionic surfactants and / or anionic surfactants and, in some embodiments, the compositions may comprise mixtures of surfactants having the same or different ionicities.

[0114] Useful and non-limiting examples of non-ionic surfactants include, for example, polyoxyalkylated fatty alcohols, alkyl polyglucosides, oxyalkylated esters of glycerol, oxyalkylated fatty acid esters of sorbitan (e.g., polysorbate 60), polyoxyalkylated (e.g., polyoxyethylenated and / or polyoxypropylenated fatty acid esters) optionally in combination with a fatty acid ester of glycerol, such as the PEG-100 stearate / glyceryl stearate mixture, oxyalkylated sugar esters, or mixtures thereof.

[0115] Non-limiting examples of polyoxyalkylated fatty alcohols that may be selected include ceteareth-2, ceteareth-3, ceteareth-4, ceteareth-5, ceteareth-6, ceteareth-7, ceteareth-8, ceteareth-9, ceteareth-10, ceteareth-11, ceteareth-12, ceteareth-13, ceteareth-14, ceteareth-15, ceteareth-16, ceteareth-17, ceteareth-18, ceteareth-20, ceteareth-22, ceteareth-23, ceteareth-24, ceteareth-25, ceteareth-27, ceteareth-28, ceteareth-29, ceteareth-30, ceteareth-33, ceteareth-34, ceteareth-40, ceteareth-50, ceteareth-55, ceteareth-60, ceteareth-80, ceteareth-100, laureth-1, laureth-2, laureth-3, laureth-4, laureth-5, laureth-6, laureth-7, laureth-8, laureth-9, laureth-10, laureth-11, laureth-12, laureth-13, laureth-14, laureth-15, laureth-16, laureth-20, laureth-23, laureth-25, laureth-30, laureth-40, the deceth-3deceth-5, oleth-5, oleth-30, steareth-2, steareth-10, steareth-20, steareth-100, cetylsteareth-12, ceteareth-5, ceteareth-5, polyglyceryl 4-lauryl ether, polyglyceryl 4-oleyl ether, polyglyceryl 2-oleyl ether, polyglyceryl 2-cetyl ether, polyglyceryl 6-cetyl ether, polyglyceryl 6-oleylcetyl ether, polyglyceryl 6-octadecyl ether, C9-C11 pareth-3, C9-C11 pareth-6, C11-C15 pareth-3, C11-C15 pareth-5, C11-C15 pareth-12, C11-C15 pareth-20, C12-C15 pareth-9, pareth-12 C12-C15, and pareth-33 at C22-C24. In some embodiments, the surfactant is selected from polyoxyalkylated fatty alcohols, for example laureth-12 and / or oleth-30.

[0116] Alkyl polyglucosides that may be used include, for example, those containing an alkyl group comprising from 6 to 30 carbon atoms, for example from 8 to 16 carbon atoms, and containing a glucoside group, for example comprising from 1.2 to 3 glucoside units.Alkyl polyglucosides can be chosen, for example, from decyl glucoside, caprylyl / capryl glucoside, lauryl glucoside, cocoyl glucoside, caprylyl glucoside or mixtures thereof.

[0117] The oxyalkylated glycerol esters that may be used include, for example, polyoxyethylenated derivatives of glycerol esters and a fatty acid and their hydrogenated derivatives. These oxyalkylated glycerol esters may be selected, for example, from hydrogenated and oxyethylenated glycerol esters of fatty acids, such as PEG-200 hydrogenated glyceryl palmate, oxyethylenated glyceryl cocoates, PEG-30 glyceryl cocoate, oxyethylenated glyceryl stearates, or mixtures thereof.

[0118] Oxyalkylated sugar esters can be selected from fatty acid polyethylene glycol ethers and sugar esters. These oxyalkylated sugar esters can be selected, for example, from oxyethylated glucose esters, such as PEG-120 methyl glucose dioleate.

[0119] Useful but not limiting examples of anionic surfactants include polyoxyalkylened alkyl ether carboxylic acids, polyoxyalkylened alkylaryl ether carboxylic acids, polyoxyalkylened alkylamido ether carboxylic acids, especially those including 2 to 50 ethylene oxide groups, alkyl D-galactoside uronic acids, acyl sarcosinates, acyl glutamates and alkyl polyglycoside carboxylic esters.

[0120] In at least some embodiments, the hair colour compositions comprise at least one non-ionic surfactant and at least one anionic surfactant.

[0121] The total amount of surfactants can vary, and can range, for example, from about 1% to about 20% by weight, as from about 2% to about 18%, from about 3% to about 16%, from about 4% to about 14%, from about 5% to about 12%, or from about 6% to about 11% by weight, relative to the total weight of the hair colour base composition.

[0122] Optionally, the hair color base compositions according to the disclosure may further comprise at least one revitalizing polymer. Useful revitalizing polymers include, for example, cationic polymers. In some embodiments, the hair color base compositions comprise at least one polyquatemium compound.

[0123] By way of example, non-limiting examples of cationic polymers include copolymers of l-vinyl-2-pyrrolidine and l-vinyl-3-methylimidazolium salt (e.g. chloride salt) (called Polyquatemium-16); copolymers of l-vinyl-2-pyrrolidine and dimethylaminoethyl methacrylate (called Polyquatemium-11); a cationic polymer containing a quaternary diallyl ammonium including, for example, the homopolymer of dimethyldiallylammonium chloride and the copolymers of acrylamide and dimethyldiallylammonium chloride (Polyquatemium-6 and Polyquaternium-7); polysaccharide polymers, such as cationic cellulose derivatives and cationic starch derivatives. Cationic cellulose is available as salts of hydroxyethyl cellulose that have reacted with a trimethyl ammonium substituted epoxide (called Polyquatemium-10).Another type of cationic cellulose includes quaternary ammonium polymers of hydroxyethyl cellulose that have reacted with a lauryl dimethyl ammonium substituted epoxide (called Polyquatemium-24). Additionally, or alternatively, cationic revitalizing polymers may include or be selected from cationic derivatives of guar gum, such as hydroxypropyltrimonium guar chloride.

[0124] In some embodiments, cationic revitalizing polymers include cationic polysaccharide polymers, such as cationic cellulose, cationic starch, and cationic guar gum. In the context of this disclosure, cationic polysaccharide polymers include cationic polysaccharides and polysaccharide derivatives (e.g., derivatized to be cationic), for example, resulting in cationic cellulose (cellulose derivatized to be cationic), cationic starch (derivatized to be cationic), and cationic guar (guar derivatized to be cationic). In other embodiments, cationic revitalizing polymers include cationic guars such as guar hydroxypropyltrimonium chloride and guar hydroxypropyltrimonium chloride, or cationic starches such as starch hydroxypropyltrimonium chloride and hydroxypropyl starch oxidized PG trimonium chloride..

[0125] In certain embodiments, quaternized cationic polymers are particularly useful, such as quaternary nitrogen polymers prepared by the polymerization of a dialkyldiallylammonium salt or a copolymer thereof in which the alkyl group contains from 1 to about 18 carbon atoms, such as when the alkyl group is methyl or ethyl. Cationic homopolymers and des copolymères de chlorure de polydiallyldiméthylammonium peuvent être choisis, par exemple. Par exemple, Polyquatemium-1, Polyquaternium-2, Polyquaternium-4, Polyquaternium-5, Polyquatemium-6, Polyquaternium-7, Polyquaternium-8, Polyquaternium-9, Polyquatemium-10, Polyquaternium-11, Polyquaternium-12, Polyquaternium-13, Polyquatemium-14, Polyquaternium-15, Polyquaternium-16, Polyquaternium-17, Polyquatemium-18, Polyquaternium-19, Polyquaternium-20, Polyquaternium-22, Polyquatemium-24, Polyquaternium-27, Polyquaternium-28, Polyquaternium-29, Polyquatemium-30, Polyquaternium-31, Polyquaternium-32, Polyquatemium-33, Polyquaternium-34, Polyquaternium-35, Polyquatemium-36, Polyquaternium-37, Polyquatemium-39, Polyquaternium-42, Polyquaternium-43, Polyquaternium-44, Polyquatemium-45, Polyquaternium-46, Polyquaternium-47, ou une combinaison de deux ou plusieurs d’entre eux, peuvent être choisis.In at least some embodiments, the hair colour base compositions include Polyquaternium-22. In other embodiments, the hair colour base compositions are free or substantially free of Polyquaternium-6.

[0126] If present, the total amount of cationic polymers may vary from about 0.01% to about 10%, as from about 0.1% to about 5%, from about 0.1% to about 3%, from about 0.1% to about 2%, from about 0.1% to about 1%, from about 0.25% to about 5%, from about 0.25% to about 3%, from about 0.25% to about 2%, from about 0.25% to about 1%, from about 0.5% to about 5%, from about 0.5% to about 3%, from about 0.5% to about 2%, from about 0.5% to about 1%, from about 0.75% to about 5%, from about 0.75% to about 3%, from about 0.75% to about 2%, or about 0.75% to approximately 1% by weight, relative to the total weight of the base hair composition.

[0127] Optionally, the hair color base compositions may include one or more auxiliary components. The hair color base compositions according to the disclosure may optionally include one or more additional components suitable for use in cosmetic compositions, and in particular suitable for changing hair color. Such auxiliary components may include, for example, pH adjusters, thickeners other than the colloidal agents described above, vitamins, ceramides, preservatives, fillers, structuring agents, propellants, gloss enhancers, antioxidants, penetrants, sequestrants, perfumes, buffers, dispersants, plant extracts, opacifiers, sunscreens, chelating agents, dyes or pigments for coloring the composition, and antistatic agents.Such optional auxiliary components will be chosen in such a way as to . minimize any adverse effects on the benefits of the hair colour bases and base compositions described in this document.

[0128] The optional auxiliary components may be present in an amount of up to about 15%, as well as from about 0.001% to about 10%, from about 0.01% to about 5%, or from about 0.1% to about 3% by weight, relative to the total weight of the base hair color composition.

[0129] The hair color base compositions according to the disclosure typically have a pH greater than 7, such as greater than about 8, greater than about 9, or greater than about 10, up to about 13. For example, the pH of the hair color base composition may range from about 9 to about 13, from about 9 to about 12, from about 9.5 to about 12, from about 10 to about 12, or from about 10.5 to about 11.5. In various embodiments, the hair color base composition has a pH of about 9.5, about 10, about 10.5, about 11, about 11.5, or about 12, including all ranges and sub-ranges thereof.

[0130] Hair color base compositions according to the disclosure are typically in the form of a cream, paste, or lotion, but may also be in the form of a serum, gel, cream-gel, or other formulation. In some embodiments, hair color base compositions may be a rinse-out hair coloring product, which can be used to enhance hair color or provide the desired color to the hair after being mixed with a developer composition comprising one or more oxidizing agents. Hair color base compositions according to the disclosure are generally stable and can be stored at room temperature for at least 24 months. Revealing compositions

[0131] The hair colour base compositions disclosed herein can be mixed with a developer composition (also referred to as a developer or oxidizing composition) which includes one or more oxidizing agents, producing mixtures (also referred to herein as "hair colour modifying compositions") which are suitable for application to hair for the purpose of changing hair colour, for example by enhancing hair colour and / or providing colour, while also offering benefits such as maintaining and / or improving the strength and / or elasticity of hair and reducing damage to hair caused by the chemical treatment of hair colour modifying compositions and processes.

[0132] Developer compositions can be mixed with hair colour base compositions as disclosed to prepare a composition for changing hair colour. Typically, a developer composition includes at least one oxidizing agent and a cosmetically suitable carrier. The developer compositions that may be used to prepare a hair color-modifying composition according to the disclosure are not limited and may include, for example, any commercial developer composition, provided that it includes at least one oxidizing agent.

[0133] In various embodiments, a suitable oxidizing agent may be selected, for example, from peroxides, such as hydrogen peroxide and urea peroxide; persalts, such as persulfates, perborates, percarbonates, peroxygenated salts, etc.; alkali metal bromates, alkali metal ferricyanides, alkali metal carbonates, or a mixture thereof. An oxidizing agent may also be selected from one or more redox enzymes, such as laccases, peroxidases, and 2-electron oxidoreductases (such as uricase), optionally in the presence of their respective donor or cofactor.

[0134] In one embodiment, a suitable oxidizing agent may be selected from persulfates and / or monopersulfates such as, for example, potassium persulfate, sodium persulfate, ammonium persulfate, and mixtures thereof. In one embodiment, the oxidizing agents in this disclosure are selected from hydrogen peroxide, potassium persulfate, sodium persulfate, and mixtures thereof.

[0135] In some embodiments, hydrogen peroxide is used as an oxidizing agent. In various situations, hydrogen peroxide may be present in an aqueous developer with a concentration ranging from 1 to 40 volumes, such as 5 to 40 volumes, 5 to 30 volumes, or 5 to 20 volumes. In some embodiments, the oxidizing component is a developer composition based on 10 V, 20 V, 30 V, or 40 V hydrogen peroxide.

[0136] The total quantity of oxidizing agents in the developing composition can, in various embodiments, vary from about 0.05% to about 50% by weight, as well as from about 0.1% to about 30% by weight, from about 0.1% to about 20% by weight, from about 1% to about 20%, from about 1% to about 15%, from about 1% to about 12%, from about 3% to about 20%, from about 3% to about 15%, from about 3% to about 12%, from about 5% to about 20%, from about 5% to about 15%, from about 5% to about 12%, from about 7% to about 20%, from about 7% to about 15%, from about 7% to about 12%, from about 9% to about 20%, from about 9% to about 15%, or about 9% to about 12% by weight, relative to the total weight of the developing composition.

[0137] The developing composition may contain at least one solvent, chosen, for example, from water, organic solvents, or mixtures thereof. Organic solvents suitable for use in the developing composition, alone or in mixture with water, include, but are not limited to, ethanol, isopropyl alcohol, propanol, benzyl alcohol, phenylethyl alcohol, glycols and glycol ethers, such as propylene glycol, hexylene glycol, monomethyl, monoethyl or monobutyl ethylene glycol ether, propylene glycol and its ethers, such as monomethyl propylene glycol ether, alkyl ethers of butylene glycol, dipropylene glycol, diethylene glycol, such as monoethyl ether and monobutyl diethylene ether, ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, propane diol, glycerin, hydrocarbons such as linear chain hydrocarbons, mineral oil, polybutene, hydrogenated polyisobutene, hydrogenated polydecene, polydecene, squalane, petrolatum, isoparaffins, or mixtures thereof.

[0138] Organic solvents for use in developing compositions may be volatile or non-volatile compounds. The organic solvent may, for example, be present in an amount ranging from about 0.5% to about 70% by weight, such as from about 2% to about 60% by weight, such as from about 5% to about 50% by weight, relative to the total weight of the developing composition.

[0139] Developing compositions are typically aqueous, but may also be in the form of a powder, gel, liquid, foam, lotion, cream, mousse, or emulsion. For example, in some embodiments, the developing composition is aqueous and is in the form of a liquid, cream, or emulsion. In variations of embodiments, the developing composition may be anhydrous or substantially anhydrous. The term “substantially anhydrous” means that the developing composition is either completely free of water or does not contain an appreciable amount of water, for example, not more than 5% by weight, or not more than 2% by weight, or not more than 1% by weight, based on the weight of the developing composition.It should be noted that this refers, for example, to bound water, such as the water of crystallization of salts or traces of water absorbed by the starting materials used in the preparation of the compositions according to the disclosure embodiments. When the developing composition is substantially anhydrous, the developing composition may include at least one solvent selected from the organic solvents described above.

[0140] Developing compositions may optionally include other components commonly used in developing compositions, such as, for example, rheology modifying agents, chelators, fatty substances, ceramides, pH adjusting agents, preservatives, perfumes, surfactants, etc.

[0141] The pH of the developing composition is generally less than 7, such as less than about 6, less than about 5 or less than about 4. For example, the pH of the developing composition may be in the range of about 1 to about 5, such as about 1.5 to about 4 or about 2 to about 3. Compositions that modify hair color

[0142] In non-limiting embodiments, the disclosure also provides hair color-modifying compositions, which include components described above for hair color base compositions and at least one oxidizing agent. The hair color-modifying compositions are generally prepared by mixing a hair color base composition described herein with a developer composition, for example, at the time of use or shortly thereafter.

[0143] According to various embodiments, a hair color base composition disclosed herein can be mixed with a developer composition in a weight ratio between the hair color base composition and the developer that is in the range of about 1:5 to about 5:1, such as about 1:4 to about 4:1, about 1:3 to about 3:1, or about 1:2 to about 2:1, or that is about 5:1, about 4:1, about 3:1, about 2:1, about 1.5:1, about 1:1, about 1:1.5, about 1:2, about 1:3, about 1:4, or about 1:5. It will be understood that, depending on the mixing ratio, the quantities of components described here for the base composition of hair color and the developer composition will be reduced in the final hair color modification composition.For example, if a hair colour base composition and a developer composition are mixed in a 1:1 ratio, the quantities disclosed here for each will be present at 50% in the final mixture.

[0144] In some embodiments, the hair color-modifying compositions are free or substantially free of ammonia, ammonia salts, and / or ammonia hydrates. However, in at least some other embodiments, the compositions disclosed herein may include ammonia, ammonia salts, and / or ammonia hydrates.

[0145] The pH of the hair color-modifying composition resulting from the mixture of the hair color base composition and the developer composition is generally greater than 7, which can be adjusted to the desired value using acidifying / alkalizing agents well known in the technique. In some embodiments, the pH of the hair color-modifying composition is between approximately 7 and 12, for example, between approximately 8 and 12, between approximately 9 and 12, between approximately 7 and 11, between approximately 8 and 11, between approximately 9 and 11. In some embodiments of In production, the hair colour modifying composition has a pH ranging from approximately 10 to approximately 11. II. KITS

[0146] This disclosure also relates to kits comprising the base compositions and / or developer compositions described herein. The kits in various embodiments may include at least one suitable container or compartment for holding and / or dispensing the hair color base compositions and, optionally, at least one second container or compartment. The optional second container or compartment may include, for example, a developer composition.In some other embodiments, a kit may include a first container containing a hair color base composition as disclosed, a second container containing a developer comprising at least one oxidizing agent described above, and optionally, an additional separate container containing a cosmetic composition, for example, a shampoo, conditioner, hair mask, styling composition, or hair treatment composition other than a developer or base described above. The hair color base composition and the developer composition contained in separate containers may be mixed before application to the hair.

[0147] In other embodiments, a kit according to the disclosure comprises a first container or compartment containing a composition including at least one hair color modifying agent, for example, at least one oxidation dye compound or at least one direct dye as described above, and at least a second container or compartment containing one or more of a carboxylic acid and / or a salt thereof, and glycine and / or a salt thereof. In such embodiments, it may be possible to provide a basic hair color composition in a deconstructed manner, the kit further providing instructions for mixing or combining the contents of several compartments or containers to prepare a basic hair color composition and / or a hair color modifying composition as described herein, for example, at the time of use or shortly thereafter. III. PROCESSES

[0148] The hair color-modifying compositions described herein can effectively alter hair color, while surprisingly maintaining the strength and / or elasticity of the fibers, and / or minimizing or reducing damage to the hair caused by the hair color-modifying treatment. Therefore, another embodiment of the disclosure relates to methods of using any of the compositions disclosed herein for To modify hair color, including enhancing hair color and / or providing a desired color to the hair, as well as to improve the integrity of the hair fibers and / or minimize or reduce damage to the hair caused by chemical treatment. In other embodiments, the processes relate to treating hair with compositions described herein to impart fiber integrity benefits such as strength and / or elasticity to the hair.

[0149] In various embodiments, the processes disclosed herein generally include applying an effective amount of a hair color-modifying composition disclosed herein to the hair. The hair color-modifying composition is generally obtained at or near the time of use by mixing a hair color base composition disclosed herein and a developer composition comprising at least one oxidizing agent. In some embodiments, the processes may further include mixing a hair color base composition disclosed herein and a developer composition described herein at or near the time of use.

[0150] In various embodiments, prior to the application of the compositions disclosed herein, the hair may be bleached, washed with shampoo, and / or rinsed. In some embodiments, prior to the application of the hair-color-modifying composition, the hair may first be washed with a commercially available shampoo or rinsed with water. The hair may further be conditioned and / or rinsed after shampooing and prior to the application of the compositions disclosed herein. After the hair has been washed with shampoo, conditioned, and / or rinsed, the hair-color-modifying composition is applied to the washed or rinsed hair while the hair is wet, damp, or slightly damp.In some other embodiments, before applying the hair-color-modifying composition to the hair, the hair may optionally be lightly dampened, moistened, or wetted with a water spray or a damp towel, or by applying other treatment compositions that render the hair slightly damp, moist, or wet. In some embodiments, after applying the disclosed compositions to the hair, the hair may further be rinsed, washed with a shampoo, and / or conditioned once or several times.

[0151] As used herein, the term "effective amount" refers to any quantity sufficient to provide a desired enhancing or coloring effect. For example, in some embodiments, from about 0.1 gram to about 50 grams of a hair-color-modifying composition may be applied to the hair, depending on the specific formulation of the product, the hair length, hair volume, and hair color. In some embodiments, Approximately 0.1 grams of the composition per gram of hair is applied to the hair. In some embodiments, approximately 0.5 grams of the composition per gram of hair is applied to the hair. The composition applied to the hair can be distributed as needed, e.g., massaged in fairly evenly or uniformly over all the hair by combing with the fingers or a tool such as a comb or other.

[0152] After the hair color-modifying composition has been applied to the hair, the composition may remain on the hair for a sufficient period to confer the benefits provided by the composition (the "leave-on" or "treatment" period), such as enhancing the hair color or providing the desired shade or tint. For example, the hair color-modifying composition may be left on the hair for up to one hour, for example, from about 1 minute to about 60 minutes, from about 1 minute to about 45 minutes, from about 1 minute to about 30 minutes, from about 1 minute to about 20 minutes, from about 1 minute to about 15 minutes, from about 1 minute to about 10 minutes, from about 1 minute to about 5 minutes, from about 3 minutes to about 45 minutes, from about 5 minutes to about 30 minutes, or from about 10 minutes to about 20 minutes, and then removed from the hair, for example, by rinsing.A professional skilled in the art, considering various factors such as the initial hair color and the desired color, can determine an appropriate duration for leaving the hair color-modifying composition or mixture on the hair to achieve the desired color change. If desired, the hair treated with the hair color-modifying compositions can then be washed with shampoo and / or conditioned after rinsing out the mixture.

[0153] In certain embodiments, a process disclosed herein is intended for permanent or semi-permanent coloring or tinting of hair, while improving the strength, elasticity, and / or integrity of the hair fibers. In this case, a hair color base composition may include one or more coloring agents such as oxidative dyes optionally combined with one or more couplers.

[0154] After describing in detail the numerous embodiments of the present invention, it will become apparent that modifications and variations are possible without departing from the scope of the disclosure defined in the appended claims. Furthermore, it should be noted that all the examples in this disclosure, while illustrating numerous embodiments of the disclosure, are provided by way of non-limiting examples and should therefore not be considered as limiting the various aspects thus illustrated. It should be understood that all definitions are provided herein only for the purposes of this disclosure.

[0155] As used herein, the terms "comprising," "having," and "including" (or "comprise," "having," and "include") are used in their broad, non-limiting sense. The expression "consisting essentially of" limits the scope of a claim to the specified materials or steps and to those that do not materially affect the fundamental and innovative feature(s) of the compositions.

[0156] In this application, the use of the singular includes the plural, unless specifically stated otherwise. The singular forms "a," "an," "the," "the," and "at least one" are understood to encompass both the plural and the singular, unless the context clearly indicates otherwise. The expression "one or more" means "at least one" and therefore includes individual components as well as mixtures / combinations. Similarly, the expression "a salt of this one" also refers to "salts of this one."Thus, when the disclosure refers to "a selected item from the group consisting of A, B, C, D, E, F, a salt of these, or mixtures of these," it indicates that one or more of A, B, C, D, and F may be included, one or more of a salt of A, a salt of B, a salt of C, a salt of D, a salt of E, and a salt of F may be included, or a mixture of any two of A, B, C, D, E, F, a salt of A, a salt of B, a salt of C, a salt of D, a salt of E, and a salt of F may be included.

[0157] The expression "and / or" should be understood as including both the conjunctive and the disjunctive. For example, "citric acid and / or its salts" means "citric acid and its salts" as well as "citric acid or its salts".

[0158] As used herein, the expressions "and their mixtures", "and one of their mixtures", "and their combinations", "and one of their combinations", "or their mixtures", "or one of their mixtures", "or their combinations", and "or one of their combinations" are used interchangeably to indicate that the list of components immediately preceding the expression, such as "A, B, C, D, or their mixtures", means that the component(s) may be chosen from A, B, C, D, from A + B, from A + B + C, from A + D, from A + C + D, etc., without limitation as to their variations. Thus, the components may be used individually or in any combination thereof.

[0159] For the purposes of this disclosure, it should be noted that, for the sake of brevity, some of the quantitative expressions given herein are not qualified with the term "approximately". It is understood that, whether the term "approximately" is used explicitly or implicitly, each quantity given herein is intended to refer to the actual value given, and is also intended to refer to the approximation of that value given that would be reasonably deduced by a person skilled in the art, including approximations due to experimental and / or measurement conditions for that value.

[0160] All ranges and quantities stated herein are deemed to include subranges and quantities using any disclosed point as a bound, and all bounds are deemed to be inclusive unless expressly stated otherwise. Thus, a range of "1% to 10%, as well as 2% to 8%, as well as 3% to 5%" is deemed to encompass ranges of "1% to 8%", "1% to 5%", "2% to 10%", and so on. All numbers, quantities, ranges, etc., are deemed to be modified by the term "approximately", whether or not expressly stated, unless expressly stated otherwise. Similarly, a given range of "approximately 1% to 10%" is deemed to have its bounds of both 1% and 10% modified by the term "approximately". The term "approximately" is used here to indicate a difference of up to + / - 10% from the stated number, such as + / - 9%, + / - 8%, + / - 7%, + / - 6%, + / - 5%, + / - 4%, + / - 3%, + / - 2%, or + / - 1%.Unless expressly stated otherwise, "approximately" means + / - 5%. Similarly, all range boundaries are understood to be disclosed individually, such that, for example, a range of 1:2 to 2:1 is understood to disclose both a 1:2 and a 2:1 ratio.

[0161] As used here, if a component is described as being present "in an amount less than or equal to" a certain amount, it is expected that this component is in fact present in the composition, namely, present in an amount greater than 0%.

[0162] All quantities indicated here are relative to the quantity of active material, unless otherwise stated.

[0163] All percentages, parts and ratios herein are based on the total weight of the compositions in this disclosure, unless otherwise stated.

[0164] The term "color modification," as used here, refers to enhancing or lightening hair color. It may also refer to dyeing or coloring hair or depositing color onto the hair. In some cases, it involves enhancing or lightening hair color while simultaneously depositing color onto the hair.

[0165] As used herein, the terms "apply a composition to keratin fibers" and "apply a composition to hair," and variations thereof, are intended to denote the contact of keratin fibers, including hair, with at least one of the compositions of the disclosure, in any manner whatsoever. This may also mean the contact of keratin fibers or hair in an effective amount of the composition.

[0166] As used here, the term "salts" may include salts containing a counterion such as an alkali metal, an alkaline earth metal, or an ammonium counterion. This list of counterions, however, is not exhaustive. Salts also include a dissociated form of a compound, for example, in an aqueous solution.

[0167] As used here, the term "stable" means that the composition does not exhibit phase separation for a given period, for example, at least 1 day (24 hours), 1 week, 1 month, 1 year or 2 years.

[0168] As used herein, the terms "substantially free" or "essentially free" mean that the specific material may be present in small amounts that do not materially affect the basic and novel characteristics of the compositions as disclosed. For example, less than 2% by weight of a specific material may be added to a composition, based on the total weight of the compositions (provided that an amount less than 2% by weight does not materially affect the basic and novel characteristics of the compositions as disclosed). Similarly, the compositions may include less than 2%, less than 1.5%, less than 1%, less than 0.5%, less than 0.1%, less than 0.05%, or less than 0.01%, or none of the specified materials.Furthermore, all components positively presented in this disclosure may be negatively excluded from the claims; for example, a claimed composition may be "free," "substantially free," or "substantially free" of one or more components that are positively presented in this disclosure. The terms "free," "substantially free," and "substantially free," as used here, mean that the specific material is not added to the composition but may still be present in a raw material included in the composition. For example, a composition according to the disclosure may not include an added wax but may include a wax-coated pigment and may still be considered "free," "substantially free," or "substantially free" of waxes.

[0169] As used herein, the term "surfactants", as well as any specifically identified surfactant, includes salts of surfactants, even if not explicitly stated.

[0170] As used herein, the term "treat" (and its grammatical variations) refers to the application of the compositions of this disclosure to the surface of keratinous materials, such as hair.

[0171] Unless expressly stated otherwise, no process presented herein is intended to be interpreted as requiring that its steps be performed in a specific order. Accordingly, where a process claim does not expressly state an order to be followed by its steps, or where it is not specifically stated in the claims or descriptions that the steps must be limited to a specific order, no particular order is to be inferred therefrom. Examples

[0172] The following examples are intended to be non-limiting and explanatory only. In the Examples, the quantities in each composition are expressed as a percentage by weight (% by weight) of active materials, unless otherwise defined, relative to the total weight of the composition.

[0173] Example 1 - Basic compositions of hair colour

[0174] Examples of basic compositions of hair colour 1A-1D indicated in Table IA have been prepared.

[0175] [Table 1]

[0176] TABLE IA - Examples of basic hair colour compositions IA IB IC 1D MICA AND / OR TITANIUM DIOXIDE 0.85 0.50 0.49 0.50 AMMONIUM HYDROXIDE 4.12 4.12 ETHANOLAMINE 1.00 5.24 1.00 5.27 POLYQUATERNIUM-22 0.82 0.82 0.82 0.82 GLYCINE 0.50 0.50 0.50 0.50 CITRIC ACID 0.20 0.20 0.20 0.20 GLYCOL DISTEARATE 3.00 2.25 3.33 2.25 DIMETHICONE 0.01 CETEARYL ALCOHOL 11.00 7.00 11.00 7.00 OLEYL ALCOHOL 3.00 2.10 3.60 2.10 Hydrogenated Vegetable Oil E 2.00 1.50 2.00 1.50 Oleic Acid 3.00 2.10 3.00 2.10 Laureth-12 and Oleth-30 7.00 7.00 7.00 7.00 Hydroxyethylcellulose 0.20 0.40 0.20 0.40 Cetyl Hydroxyethylcellulose 0.09 0.18 0.09 0.18 Hair Coloring Agent(s) QS QS QS QS Additives (perfumes, fillers, preservatives, buffers, chelating agents) < 3 <3 <3 <3 SOLVENTS Qs per 1 Qs per 1 Qs per 1 Qs per 1 (water and non-aqueous solvents) 00 00 00 00

[0177] Compositions 1A-1D are basic hair color compositions according to the disclosure to which any combination of hair coloring agents as described herein may be added, if desired. For example, one or more oxidative dye compounds such as m-aminophenol, p-aminophenol, 2-methyl-5-hydroxyethylaminophenol, 2,4-diaminophenoxyethanol hydrochloride, 4-amino-2-hydroxytoluene, 6-hydroxyindole, etc., and / or one or more direct dyes such as HC Red No. 3, Basic Red 5, Basic Yellow 87, Basic Orange 31, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 2-nitro-5-glyceryl, etc., may be included as described above.

[0178] Comparative C1-C5 hair colour base compositions indicated in Table IB were prepared.

[0179] [Table 2]

[0180] TABLE IB - Comparative basic compositions of hair color Cl C2 C3 C4 C5 MICA AND / OR TITANIUM DIOXIDE 0.49 0.15 0.15 0.15 0.50 AMMONIUM HYDROXIDE 4.12 4.12 4.12 4.12 ETHANOLAMINE 1.00 1.20 4.20 1.80 5.24 POLYQUATERNIUM-6 0.40 POLYQUATERNIUM-22 0.82 0.82 TAURINE 0.50 CITRIC ACID 1.00 0.20 GLYCOL DISTEARATE 3.00 3.00 3.00 3.00 2.25 DIMETHICONE 0.01 0.03 0.03 0.03 CETEARYL ALCOHOL 11.00 14.00 14.00 14.00 7.00 OLEYL ALCOHOL 3.60 1.80 1.80 1.80 2.10 HYDROGENATED VEGETABLE OIL E 2.00 2.00 2.00 2.00 1.50 OLEIC ACID 3.00 2.00 2.00 2.00 2.10 LAURETH-12 AND OLETH-30 7.00 7.00 7.00 7.00 7.00 HYDROXYETHYLCELLULOSE 0.20 0.20 0.20 0.20 0.40 Cetyl Hydroxyethylcellulose 0.09 0.09 0.09 0.09 0.18 Hair Coloring Agent(s) QS QS QS QS QS Additives (perfumes, fillers, preservatives, buffers, chelating agents) < 3 <3 <3 <3 <3 Solvents Qs for Qs for Qs for Qs for Qs for (water and non-aqueous solvents) r 100 r 100 r 100 r 100 r 100 The pH of each of the compositions 1A-1D and C1-C5 was in the range of approximately 10-11. Example 2# - revealing compositions

[0181]

[0182]

[0183]

[0184]

[0185]

[0186]

[0187]

[0188] An example of DI 20V developer composition and an example of D2 1V developer composition are shown in Table 2. The developers had a pH of approximately 2.2. [Table 3] TABLE 2# - Revealing Compositions DI D2 TRIDECETH-2 CARBOXAMIDE MEA 0.85 0.82 TETRASODIUM ETIDRONATE 0.06 0.06 SODIUM SALICYLATE 0.035 0.035 GLYCERIN 0.50 0.50 CETEARYL ALCOHOL 2.28 2.28 CETEARETH-25 0.57 0.57 HYDROGEN PEROXIDE 6.0 3.0 TETRASODIUM PYROPHOSPHATE 0.04 0.04 WATER Qs for 100 Qs for 100 Example 3 - Evaluation of the integrity of treated hair fibers The integrity of the hair fibers treated with compositions according to disclosure or comparative compositions were evaluated. Example 3A - Evaluation of permanent hair color modification compositions Caucasian braids (4) of tone 4-5 and weighing 2.7 grams were used. The hair braids were pre-bleached with a mixture of a composition

[0189]

[0190]

[0191]

[0192]

[0193]

[0194]

[0195] commercially available bleach and developer were used. The bleach mixture was left on the hair to process for 50 minutes at 33°C. After processing, the hair braids were rinsed and washed with a commercially available shampoo, rinsed again, and then blow-dried for 2 minutes. Just before use, each of the IC and Cl hair color base compositions was mixed with the DI developer in a 1:1 mixing ratio to prepare permanent hair color-altering compositions 1C+D1 or Cl+Dl. The following protocol was then performed four times for each braid. First, each of the permanent hair color-altering compositions was applied to two separate pre-bleached braids of hair (10 grams of mixture per braid), left on the hair for 35 minutes at 27°C, and then rinsed out. Next, the hair underwent a shampooing cycle consisting of washing with a commercially available shampoo, rinsing, and then blow-drying for 2 minutes. This shampooing cycle was repeated six times, for a total of seven cycles. Finally, after the protocol had been completed a total of four times for each braid, the braids were stored overnight at room temperature and 60% relative humidity. The tensile strength of the treated hair braids (wet, 50 fibers per braid) was evaluated using a Dia-Stron Mini Tensile Tester (MTT). Tensile strength measures the force / surface area required to break the hair fiber. The higher the tensile strength, the stronger the fiber. The tensile strength of virgin hair (without prior chemical treatment) of the type used in Example 3A was found to be approximately 136 MPa. The results, presented in Table 3A, were considered statistically significant. JMP™ analysis software was used to calculate the statistics (Student's t-test at a 95% confidence level). [Table 4] TABLE 3A# - Breaking stress Mean Treatment (MPa) Standard Deviation Mean Standard Error 1C+D1 135 19.5 2.8 Cl+Dl 122 34.1 4.8 As shown in Table 3A, the process of changing the color of pre-bleached hair using the comparative hair color-modifying composition (Cl+Dl) resulted in hair with a stress value of Breakage was significantly reduced statistically, indicating that the hair was not as strong and was more damaged than hair treated with the 1C+D1 hair color-modifying composition, which included glycine and citric acid (p < 0.05). Surprisingly, the breaking strength of hair that was bleached and then treated with the IC+D1 hair color-modifying composition was almost the same as that of virgin hair. This result demonstrates that hair treated with the disclosed compositions exhibited higher fiber integrity and strength, even after undergoing a chemical hair color-modifying process, compared to hair subjected to the same process but without the disclosed beneficial agents.

[0196] Example 3B - Evaluation of comparative compositions modifying in a permanent hair color

[0197] In order to compare the fiber integrity benefits conferred on hair by the combination of glycine and carboxylic acids with those conferred by compositions containing other amino acids and carboxylic acids, containing carboxylic acids but no amino acids, or containing neither carboxylic acids nor amino acids, the procedure in Example 3A was repeated with comparative C1-C4 hair color base compositions. The results are shown in Table 3B.

[0198] [Table 5] TABLE 3B# - Breaking stress Mean Treatment (MPa) Standard Deviation Mean Standard Error Cl+Dl 128 25.2 4.3 C2+D1 123 26.0 3.7 C3+D1 115 33.6 4.9 C4+D1 126 30.5 3.6

[0200] The results in Table 3B show that the strength of hair treated with the comparative hair color-modifying compositions Cl+Dl and C2+D1 (no amino acids and no carboxylic acids) was similar to that of the comparative hair color-modifying composition C4+D1, which has a combination of taurine and citric acid, and that the strength of all three was greater than that of hair treated with the comparative hair color-modifying composition C3+D1, which has citric acid but no amino acids. However, none of the results in Table 3B show tensile strength values ​​as high as those observed in Table 3A for hair treated with the hair color-modifying composition 1C+D1.

[0201] The data in Tables 3A and 3B therefore confirm that the combination of glycine with carboxylic acids brings about a surprisingly and statistically significant improvement in the resistance of hair fibers treated in aggressive chemical processes such as bleaching and dyeing.

[0202] Example 3C - Evaluation of compositions that modify hair color semi-permanently

[0203] In order to evaluate the fiber integrity benefits conferred by the hair color-altering compositions semi-permanently as disclosed, additional comparative tests were carried out.

[0204] Caucasian braids (5) with a shade level of 4 were pre-bleached with a mixture of a commercially available bleaching composition and a 40V hydrogen peroxide developer. The bleaching mixture was left on the hair for treatment for 50 minutes at 33°C, in films. After treatment, the hair braids were rinsed and washed with a commercially available shampoo, rinsed again, and then blow-dried. The bleaching protocol was repeated once more. These bleaching conditions were considered aggressive and are expected to cause significant damage to the hair.

[0205] Just before use, each of the basic hair color compositions IB and C5 were mixed with developer D2 in a 1:1 mixing ratio to prepare semi-permanent hair color-modifying compositions 1B+D2 or C5+D2. Each semi-permanent hair color-modifying composition was then applied to two separate pre-bleached, damp braids of hair (10 grams of mixture per braid), left on the hair for 10 minutes at 27°C, and then rinsed off. Finally, the hair was washed with a commercial shampoo and rinsed. The test included a bleached braid that was not treated with a hair color-modifying composition as a control (CNT).

[0206] The breaking strength of the (wet) braids was then evaluated, as described in Example 3A. The results are shown in Table 3C.

[0207] [Table 6]

[0208] TABLE 3C# - Breaking stress Mean Treatment (MPa) Standard Deviation 1B+D2 133 13.3 C5+D2 117 20.5 CNT1 113 15.2

[0209] The tensile strength data in Table 3C confirm the remarkable strength benefits imparted to the hair by the combination of glycine and carboxylic acids, such as citric acid. The results, which are also statistically significant, are particularly surprising given the severity of the bleaching process, and the tensile strength value of the control braid confirms this.

[0210] In addition, the elastic modulus of the braids (wet) was evaluated using the same MTT instrument. Measuring the elastic modulus provides information about hair elasticity; hair with a higher elastic modulus is healthier and more likely to return to its natural state if stretched. The results are shown in Table 3D.

[0211] [Table?] 3D TABLE# - Modulus of Elasticity Mean Treatment (MPa) Standard Deviation 1B+D2 871 196 C5+D2 759 196 CNT1 723 216

[0213] The modulus of elasticity data in Table 3D further demonstrate that hair treated with hair color-modifying compositions as disclosed provides fiber integrity benefits to hair during the hair color modification processes. The difference in modulus of elasticity values ​​measured for hair treated with hair color-modifying composition 1B+D2 is surprisingly greater than for hair treated with the comparative hair color-modifying composition C5+D2 or the control, and this difference is considered statistically significant.

[0214] Example 4 - Additional compositions

[0215] The following additional compositions according to disclosure (2A-2F) and comparative compositions (C6-C10) may also be prepared.

[0216] [Table 8]

[0217] [Tables4] 2A 2B 2C 2D 2E 2F C6 C7 C8 C9 CIO TAURINE 0.50 0.10 1.50 0.10 1.50 GLYCINE 0.50 0.50 0.10 1.50 0.10 1.50 CITRIC ACID 0.20 0.02 5 1.00 0.02 5 1.00 Lactic acid or malic acid 0.20 0.25 1.00 0.20 0.25 1.00 Ammonium hydroxide 4.12 4.12 4.12 4.12 4.12 4.12 4.12 4.12 4.12 4.12 4.12 4.12 Arylic acid 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 Cetyl hydroxyethylcellulose 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 ETHANOLAMIN E 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 GLYCOL DISTEARATE 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 HYDROGENATED VEGETABLE OIL 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 HYDROXYETHYLCELLULOSE 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 OLEIC ACID 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 LAURETH-12 AND OLETH-30 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 OLEYL ALCOHOL 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 1.80 TITANIUM DIOXIDE 0.15 0.15 0.15 0.15 0.15 ADDITIVES (perfumes, fillers,conservatives, ta <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 <3 , (substances, chelating agents) SOLVENTS Qsp Qsp Qsp Qsp Qsp Qsp Qsp Qsp Qsp Qsp Qsp (water and non-aqueous solvents) 100 100 100 100 100 100 100 100 100 100 100

[0218] Compositions 2A-2F are expected to provide the same enhanced benefits for hair fibers when used in processes to modify hair color, compared to compositions C6-C10, and results similar to those shown in Example 3 will be observed.

Claims

Demands

1. A basic hair coloring composition comprising: (a) at least one carboxylic acid and / or a salt thereof; (b) glycine and / or a salt thereof; (c) at least one solvent; (d) optionally, at least one hair color modifying agent selected from oxidative dye compounds; (e) optionally, at least one colloidal agent; and (f) optionally, at least one alkalizing agent, the total amount of (b) glycine and salts thereof ranging from about 0.01% to about 10% by weight, relative to the total weight of the composition.

2. Hair colour base composition according to claim 1, the composition having a weight ratio of the total amount of (b) glycine and its salts to the total amount of (a) carboxylic acids and their salts greater than about 1, preferably from about 1 to about 10, more preferably from about 1.25 to about 5, most preferably from about 1.5 to about 3.

5.

3. Hair colour base composition according to claim 1 or claim 2, comprising (a) at least one carboxylic acid selected from citric acid, lactic acid, malic acid, salts thereof or mixtures thereof, preferably comprising citric acid and / or salts thereof.

4. Hair colour base composition according to any one of claims 1 to 3, the total amount of (a) carboxylic acids and salts thereof ranging from about 0.01% to about 10%, preferably from about 0.05% to about 5%, more preferably from about 0.1% to about 3%, most preferably from about 0.1% to about 1% by weight, relative to the total weight of the composition.

5. Hair colour base composition according to any one of claims 1 to 4, comprising (d) at least one oxidative dye compound selected from oxidation bases and / or couplers, the total amount of oxidative dye compounds ranging from about 0.0001% to about 10% by weight, relative to the total weight of the composition.

6. Hair colour base composition according to any one of claims 1 to 5, comprising at least one colloidal agent, the total amount of colloidal agents ranging from about 0.01% to about 2%, preferably from about 0.1% to about 1.25%, more preferably from about 0.2% to about 1%, most preferably from about 0.25% to about 0.75% by weight, relative to the total weight of the composition.

7. Hair colour base composition according to any one of claims 1 to 6, comprising (f) at least one alkalizing agent selected from mineral alkalizing agents, organic alkalizing agents, or combinations of two or more of these, preferably comprising monoethanolamine.

8. A basic hair colour composition according to any one of claims 1 to 7, further comprising at least one fatty alcohol, the total amount of fatty alcohols ranging from about 1% to about 25%, preferably from about 2% to about 22%, more preferably from about 3% to about 20%, most preferably from about 5% to about 16% by weight, relative to the total weight of the composition.

9. Hair colour base composition according to any one of claims 1 to 8, the total amount of (b) glycine and salts thereof ranging from about 0.05% to about 5%, preferably from about 0.1% to about 3%, more preferably from about 0.2% to about 2% by weight, relative to the total weight of the composition.

10. A method for changing hair color, the method comprising: (a) mixing a hair color base composition according to any one of claims 1 to 9 with a composition comprising at least one oxidizing agent, and (b) applying the mixture to the hair.