METHODS FOR TREATING KERATIN FIBERS IN A LIGHTENING PROCESS

Abstract

METHODS OF TREATING KERATIN FIBERS IN A LIGHTENING PROCESS The disclosure relates to methods of treating keratin fibers. The methods comprise treating the keratin fibers with treatment compositions in connection with a hair lightening process, the treatment compositions comprising (a) at least one amino acid, (b) at least one osmolyte, (c) at least one carboxylic acid, and (d) at least one solvent. Figure for abstract: none

Description

Title of the invention: METHODS FOR TREATING KERATIN FIBERS IN A LIGHTENING PROCESS Technical field

[0001] The present disclosure relates to methods of treating keratin fibers, such as hair, for example repairing damaged keratin fibers, providing strength to the keratin fibers and / or reducing the elasticity of the keratin fibers, in connection with a keratin fiber lightening process. BACKGROUND

[0002] Consumers use cosmetic compositions and processes to change or enhance the appearance of their 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 conditioning. However, many compositions and processes for changing the appearance of hair, such as compositions and processes for permanently changing hair color, involve harsh chemical treatments. For example, compositions and processes for lightening (bleaching) hair typically require the presence of a strong alkalizing agent, such as ammonia, as well as additional compounds, such as oxidizing agents. In order to lighten the color of the hair, these components must first break down the natural components of the hair fibers.

[0003] It is known that, although such processes effectively lighten hair color, the chemical agents used inherently cause damage to the hair and negatively impact the strength, elasticity, and porosity of the hair fibers. For example, hair that has been bleached, dyed, repeatedly styled, etc., is often dry, frizzy, and generally unpleasant to the touch and appearance. In addition, damaged hair is brittle and / or has increased elasticity, resulting in more frequent hair breakage. As such, consumers are seeking compositions and processes to prevent or minimize such damage and / or repair hair that has been damaged by such treatments and processes.In particular, consumers want hair that is strong, does not break easily, can be stretched or manipulated while retaining the ability to return to its original state without breaking (i.e., reduced elasticity), feels soft and healthy, and also looks shiny and healthy.

[0004] However, it has proven difficult to formulate compositions that satisfactorily address these desires. For example, some compositions that attempt to provide a solution only coat the hair with compounds that can improve the feel and appearance of the hair; however, this approach is only temporary and superficial. Rather than preventing or repairing hair damage, this approach simply masks the damage until the next time the hair is rinsed or washed. Other compositions attempt to treat damage within the hair fiber, but to date, they have not been satisfactory.

[0005] The present inventors have now discovered a synergistic combination of components that is surprisingly effective in preventing or minimizing hair damage and treating damaged hair. Hair treated with compositions according to the disclosure exhibits surprisingly reduced signs of damage, including increased strength and / or reduced elasticity, particularly hair that has been damaged by harsh chemical treatments, such as bleaching. SUMMARY

[0006] The present disclosure relates to methods of treating keratin fibers, e.g., human hair, for example, to prevent, minimize, and / or repair hair damage, such as damage caused by hair lightening (bleaching) compositions and processes. Compositions that may be used in methods according to the disclosure ("treatment compositions") comprise a synergistic combination of one or more amino acids, one or more osmolytes, and one or more carboxylic acids, and the methods comprise applying a treatment composition according to the disclosure to the keratin fibers in connection with a hair lightening process.

[0007] In various embodiments, hair treatment compositions that may be used comprise (a) at least one amino acid, (b) at least one osmolyte, (c) at least one carboxylic acid, and (d) optionally at least one solvent. The pH of the treatment compositions is generally less than 7, or less than about 6, for example from about 2 to about 5, or from about 3 to about 4.

[0008] In some embodiments, treatment compositions that may be used in methods according to the disclosure comprise at least one amino acid selected from basic amino acids, for example, arginine, histidine, lysine, their salts, or combinations thereof. In various embodiments, the total amount of basic amino acids and their salts ranges from about 0.1% to about 15%, preferably from about 1% to about 12%, more preferably from about 2% to about 10%, more preferably from about 3% to about 7%, and most preferably from about 4% to about 6% by weight, based on the total weight of the composition. In other embodiments, the compositions comprise at least one amino acid selected from acidic or neutral amino acids and their salts, for example serine. In various embodiments, the total amount of acidic and / or neutral amino acids and their salts ranges from about 0.01% to about 5%, preferably from about 0.05% to about 4%, more preferably from about 0.1% to about 3%, and most preferably from about 0.25% to about 2.5% by weight, based on the total weight of the composition. In still other embodiments, the compositions comprise a mixture of basic, acidic and / or neutral amino acids, for example the compositions may comprise arginine and serine.In various embodiments, the total amount of amino acids and their salts present in the composition ranges from about 0.1% to about 15%, preferably from about 1% to about 12%, more preferably from about 2% to about 10%, more preferably from about 3% to about 7%, and most preferably from about 4% to about 6% by weight, based on the total weight of the composition.

[0009] In certain preferred embodiments, the compositions that may be used in the methods comprise one or more amino acids selected from glycine, proline, methionine, serine, arginine, lysine, histidine, salts of any of these (particularly, alkali metal, alkaline earth metal or zinc salts), and combinations of two or more thereof.

[0010] In various embodiments, the treatment compositions comprise at least one osmolyte selected from carbohydrate sugars, methylsulfonium compounds, polyamines, and / or amino acid derivatives such as betaines, preferably selected from the compounds of formula (II). In various embodiments, the total amount of osmolytes present in the treatment composition ranges from about 0.01% to about 10%, preferably from about 1% to about 5%, more preferably from about 1.25% to about 4%, more preferably from about 1.5% to about 3%, and most preferably from about 2% to about 2.5% by weight, based on the total weight of the composition.In various embodiments, the treatment composition has a weight ratio of total amino acid to total osmolyte that is greater than or equal to about 0.5, such as greater than about 1, preferably from about 1.25 to about 3.5, more preferably from about 1.5 to about 3, more preferably from about 1.75 to about 2.5, and most preferably from about 1.75 to about 2.25.

[0011] In various embodiments, the at least one carboxylic acid is 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 thereof, and preferably citric acid, lactic acid, their salts, or combinations of two or more thereof. In various embodiments, the total amount of carboxylic acids and their salts may range from about 0.5% to about 20%, preferably from about 1% to about 15%, more preferably from about 2% to about 12%, more preferably from about 3% to about 10%, and most preferably from about 4% to about 7% by weight, based on the total weight of the composition. In various embodiments, the treatment composition has a weight ratio of the total amount of amino acids and their salts to the total amount of carboxylic acids and their salts greater than about 0.5, such as greater than about 0.7, preferably from about 0.75 to about 2, and more preferably from about 0.8 to about 1.5.

[0012] The solvent may comprise water and / or at least one non-aqueous solvent and, in some embodiments, comprises water and at least one non-aqueous solvent. Optionally, the treatment compositions comprise water and at least one non-aqueous solvent, preferably selected from polyols, and have a total amount of non-aqueous solvents ranging from about 1% to about 20%, preferably from about 5% to about 20%, more preferably from about 5% to about 15%, and most preferably from about 8% to about 12% by weight, based on the total weight of the composition.

[0013] The treatment compositions that can be used in the methods according to the disclosure may optionally also include at least one additional component selected from fatty compounds, surfactants, thickening agents, or combinations of two or more thereof.

[0014] In some embodiments, the treatment compositions that can be used in the methods according to the disclosure comprise (a) at least one amino acid and / or a salt thereof, (b) at least one betaine, preferably at least one compound of formula (II), for example glycine betaine, in an amount ranging from about 1% to about 5% by weight, based on the total weight of the composition, (c) at least one carboxylic acid and / or a salt thereof, (d) at least one solvent, and (e) optionally at least one additional component selected from fatty compounds, surfactants, thickening agents, or combinations thereof.For example, in at least some embodiments, the treatment composition comprises arginine and the total amount of amino acids ranges from about 1% to about 10% by weight, based on the total weight of the composition, and wherein the total amount of carboxylic acids ranges from about 0.5% to about 20% by weight, based on the total weight of the composition. The pH of the treatment compositions is generally less than 7, for example, ranging from about 2 to about 5, or about . 3 to about 4. In various embodiments, the total amount of non-aqueous solvents ranges from about 1% to about 20%, preferably from about 2% to about 18%, more preferably from about 3% to about 15%, and most preferably from about 4% to about 12% by weight, based on the total weight of the composition. In some embodiments, the treatment composition has a weight ratio of the total amount of amino acids and their salts, for example, arginine, serine, their salts, or combinations thereof, to the total amount of betaines, preferably selected from compounds of formula (II) and their salts, for example, glycine betaine, which is greater than or equal to about 0.5, such as greater than about 1, preferably from about 1.25 to about 3.5, more preferably from about 1.5 to about 3, more preferably from about 1.75 to about 2.5, and most preferably from about 1.75 to about 2.25.In some embodiments, the treatment composition has a weight ratio of the total amount of amino acids and their salts to the total amount of carboxylic acids and their salts that is greater than about 0.5 or greater than about 0.7, preferably from about 0.75 to about 2, and more preferably from about 0.8 to about 1.5.

[0015] In preferred embodiments, the treatment compositions comprise (a) at least one amino carboxylic acid or one of its salts, preferably selected from arginine and / or one of its salts, (b) at least one betaine derivative, preferably selected from glycine betaine, (c) at least one carboxylic acid, preferably selected from citric acid, lactic acid and / or their salts, and (d) water. For example, the composition may comprise (a) from about 2% to about 6% arginine and / or a salt thereof, (b) from about 0.5% to about 3.5% glycine betaine, (c) at least one carboxylic acid, preferably selected from citric acid, lactic acid and / or their salts, (d) water and at least one non-aqueous solvent, and (e) optionally serine, wherein the total amount of carboxylic acids and their salts is from about 2% to about 10%, and wherein all amounts are by weight, based on the total weight of the composition.The pH of the treatment compositions is generally less than 7, for example, from about 2 to about 5, or from about 3 to about 4. In various embodiments, the total amount of non-aqueous solvents ranges from about 1% to about 20%, preferably from about 2% to about 18%, more preferably from about 3% to about 15%, and most preferably from about 4% to about 12% by weight, based on the total weight of the composition. In some embodiments, the treatment composition has a weight ratio of the total amount of amino acids and their salts to glycine betaine of greater than about 0.5, such as greater than about 1, preferably from about 1.25 to about 3.5, more preferably from about 1.5 to about 3, even more preferably from about 1.75 to about 2.5, and most preferably . from about 1.75 to about 2.25. In some embodiments, the treatment composition has a weight ratio of the total amount of amino acids and their salts to the total amount of carboxylic acids and their salts greater than about 0.5, such as greater than about 0.7, preferably from about 0.75 to about 2, more preferably from about 0.8 to about 1.5. In some embodiments, the compositions include at least one additional component selected from fatty compounds, surfactants, thickening agents, or combinations thereof. If present, the compositions comprise serine in an amount ranging from about 0.01% to about 2%, preferably from about 0.05% to about 1.5%, more preferably from about 0.05% to about 1%, and most preferably from about 0.05% to about 0.5% by weight, based on the total weight of the composition.When the compositions comprise serine, the compositions may optionally have a weight ratio of total amino acids to serine of greater than about 2, preferably from about 2 to about 15, more preferably from about 4 to about 14, more preferably from about 6 to about 13, and most preferably from about 8 to about 12. When the compositions comprise serine, the compositions may optionally have a weight ratio of glycine betaine to serine of greater than about 2, preferably from about 2 to about 10, more preferably from about 3 to about 8, more preferably from about 3.5 to about 7, and most preferably from about 4 to about 6.

[0016] The methods comprise applying a treatment composition according to the disclosure to keratin fibers in connection with a hair lightening process. In various embodiments, the methods comprise applying a treatment composition to the hair before and / or after applying a bleaching composition to the hair, with or without rinsing between applying the treatment composition and the bleaching composition. The treatment composition may also be applied to the hair at the same time as a bleaching composition, for example by mixing the treatment composition and the bleaching composition before applying the mixture to the hair, or by separately applying the treatment composition and the bleaching composition to the hair at the same time.The bleaching compositions that are used according to the disclosure are not limited, and may be those typically used for lightening hair, for example, commercial bleaching compositions comprising oxidizing and / or alkalizing agents. BRIEF DESCRIPTION OF THE FIGURES

[0017] [Fig 1A-1B] Figures 1A and 1B are graphs showing the elasticity of hair fibers of strands SI to S8 after one treatment (IA) and five treatments (IB).

[0018] [Fig 2A-2B] Figures 2A and 2B are graphs showing the elasticity of hair fibers in strands S9 to S16 after one treatment (2A) and five treatments (2B).

[0019] [Fig.3] [Fig.3] is a graph representing the elasticity of hair fibers of highlights S17 to S21 after five treatments.

[0020] [Fig 4A-4B] Figures 4A and 4B are graphs showing the breaking strain of hair fibers treated with compositions according to the disclosure and comparative compositions.

[0021] [Fig 5A-5B] Figures 5A and 5B show the structures of certain examples of osmolytes that may be included in the compositions according to the disclosure. DETAILED DESCRIPTION

[0022] The disclosure relates to methods of treating keratin fibers, such as hair, for example to repair damaged keratin fibers, provide strength to the keratin fibers and / or reduce the elasticity of the keratin fibers, in connection with a process of lightening the keratin fibers. I. TREATMENT COMPOSITIONS

[0023] The treatment compositions comprise (a) at least one amino acid, (b) at least one osmolyte, (c) at least one carboxylic acid, and (d) optionally at least one solvent. The treatment compositions may optionally comprise one or more additional components. Amino acids

[0024] The treatment compositions that may be used in the methods according to the disclosure comprise at least one amino acid. Optionally, in various embodiments, the treatment compositions according to the disclosure may comprise one, two, three, or more amino acids. The amino acids that may be selected include those that are basic, acidic, or neutral at neutral pH. In preferred embodiments, the compositions include at least one basic amino acid.

[0025] As used herein, the term "amino acid" includes amino carboxylic acids and their salts, as well as aminosulfonic acids and their salts. As used herein, amino acids mean organic compounds containing a carboxylic acid group (-COOH) (aminocarboxylic acids) and / or a sulfonic acid group (-S(=O)2-OH) (aminosulfonic acids) and an amino group (-NH2) which may be primary or secondary, or may be intracyclic, as well as a side chain (R group) specific to each amino acid.

[0026] Aminocarboxylic acids that may be selected include, for example, alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, and combinations of two or more thereof. Examples of amino sulfonic acids include aminomethanesulfonic acid, 2-aminoethanesulfonic acid (taurine), aminopropanesulfonic acid, aminobutanesulfonic acid, aminohexanesulfonic acid, aminoisopropylsulfonic acid, aminododecylsulfonic acid, aminobenzenesulfonic acid, aminotoluenesulfonic acid, sulfanilic acid, chlorosulfanilic acid, diaminobenzenesulfonic acid, aminophenolsulfonic acid, aminopropylbenzenesulfonic acid, aminohexylbenzenesulfonic acid, and combinations of two or more of these.

[0027] Salts of amino acids are also included in the term "amino acid", whether indicated or not. By way of non-limiting example, salts that may be selected include salts with organic or inorganic bases, 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.

[0028] Further, the amino acids may be of D, L, or DL ​​configuration. In certain preferred embodiments, it is advantageous to select amino acids of L configuration, for example, L-proline, L-methionine, L-serine, L-arginine, L-lysine, or combinations of two or more thereof.

[0029] In certain embodiments, it is particularly advantageous to select one or more aminocarboxylic acids. Thus, in various embodiments, the treatment compositions according to the disclosure comprise one or more amino acids of formula (I): OH (!) H — C — R

[0030] in which:

[0031] - p is an integer equal to 1 or 2, and

[0032] • when p = 1, R forms, together with the nitrogen atom, a saturated heterocycle comprising from 5 to 8 ring members, preferably 5 ring members, knowing that this ring can be substituted with one or more groups chosen from a hydroxyl or an alkyl (C1-C4); or

[0033] • when p = 2, R represents a hydrogen atom or an alkyl group (C1-C12) saturated, linear or branched, preferably an alkyl group (C1-C4), optionally interrupted by one or more heteroatoms or groups selected from -S-, -NH- or -C(NH)-, and / or optionally substituted with one or more groups selected from hydroxyl (-OH), amino (-NH2), -SH, -COOH, -CONH2, NH-C(NH)-NH2, or an imidazole ring.

[0034] In certain embodiments, when p = 1, R forms, together with the nitrogen atom, a saturated heterocycle comprising 5 ring members, this ring not being substituted.

[0035] In some embodiments when p = 2, R represents a hydrogen atom or a saturated, straight or branched (C1-C4) alkyl group, optionally substituted with one or more groups selected from hydroxyl (-OH), amino (-NH2), -CONH2, -NH-C(NH)-NH2, or an imidazole ring. In some embodiments, p is preferably 2.

[0036] In some embodiments, the treatment compositions comprise one or more amino acids selected from glycine, proline, methionine, serine, arginine, lysine, histidine, salts of any of these (particularly, alkali metal, alkaline earth metal, or zinc salts), or combinations of two or more thereof. In at least some embodiments, the amino acid compounds in the composition consist essentially of or consist of amino acids selected from glycine, proline, methionine, serine, arginine, lysine, histidine, salts of any of these (particularly, alkali metal, alkaline earth metal, or zinc salts), or combinations of two or more thereof.

[0037] In some embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of glycine and / or its salts. In other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of arginine and / or its salts. In other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of proline and / or its salts. In still other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of methionine and / or its salts.In other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of serine and / or its salts. In still other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist of . essentially of, or consist of, arginine and / or its salts. In other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of histidine and / or its salts. In still other embodiments, the amino acid(s) useful in the treatment compositions may comprise, consist essentially of, or consist of lysine and / or its salts. In still other embodiments, the amino acid(s) useful in the compositions may comprise, consist essentially of, or consist of basic amino acids and / or their salts.

[0038] In various embodiments, the total amount of amino acids may range from about 0.1% to about 15%, such as from about 0.1% to about 12%, from about 0.1% to about 10%, 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 5.5%, from about 0.1% to about 5%, 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%, from about 0.5% to about 15%, from about 0.5% to about 12%, 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 5.5%, from about 0.5% to about 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%, from about 1% to about 15%, from about 1% to about 12%, from about 1% to about 10%, from about 1% to about 9%, from about 1% to about 8%, from about 1% to about 7%, from about 1% to about 6%, from about 1% to about 5.5%, from about 1% to about 5%, from about 1% to about 4.5%, from about 1% to about 4%, from about 1% to about 3.5%, from about 1% to about 3%, from about 1% to about 2.5 %, from about 1% to about 2%, from about 1% to about 1.5%, from about 1.5% to about 15%, from about 1.5% to about 12%, from about 1.5% to about 10%, from about 1.5% to about 9%, from about 1.5% to about 8%, from about 1.5% to about 7%, from about 1.5% to about 6%, from about 1.5% to about 5.5%, from about 1.5% to about 5%, from about 1.5% to about 4.5%, from about 1,5% to about 4%, from about 1.5% to about 3.5%, from about 1.5% to about 3%, from about 1.5% to about 2.5%, from about 1.5% to about 2%, from about 2% to about 15%, from about 2% to about 12%, from about 2% to about 10%, from about 2% to about 9%, from about 2% to about 8%, from about 2% to about 7%, from about 2% to about , 6%, from about 2% to about 5.5%, from about 2% to about 5%, from about 2% to about 4.5%, from about 2% to about 4%, from about 2% to about 3.5%, from about 2% to about 3%, from about 2% to about 2.5%, from about 2.5% to about 15%, from about 2.5% to about 12%, from about 2.5% to about 10%, from about 2.5% to about 9%, from about 2.5% to about 8%, from about 2.5% to about 7%, from about 2.5% to about 6%, from about 2.5% to about 5.5%, from about 2.5% to about 5%, from about 2.5% to about 4.5%, from about 2.5% to about 4%, from about 2.5% to about 3.5%, from about 2.5% to about 3%, from about 3% to about 15%, from about 3% to about 12%, from about 3% to about 10%, from about 3% to about 9%, from about 3% to about 8%, from about 3% to about 7%, from about 3% to about 6%, from about 3% to about 5.5%, from about 3% to about 5%, from about 3% to about 4.5%, from about 3% to about 4%, from about 3% to about 3.5%, from about 3,5% to about 15%, from about 3.5% to about 12%, from about 3.5% to about 10%, from about 3.5% to about 9%, from about 3.5% to about 8%, from about 3.5% to about 7%, from about 3.5% to about 6%, from about 3.5% to about 5.5%, from about 3.5% to about 5%, from about 3.5% to about 4.5%, from about 3.5% to about 4%, from about 4% to about 15%, from about 4% to about 12%, from about 4% to about 10%, from about 4% to about 9%, from about 4% to about 8%, from about 4% to about 7%, from about 4% to about 6%, from about 4% to about 5.5%, from about 4 % to about 5%, from about 4% to about 4.5%, from about 4.5% to about 15%, from about 4.5% to about 12%, from about 4.5% to about 10%, from about 4.5% to about 9%, from about 4.5% to about 8%, from about 4.5% to about 7%, from about 4.5% to about 6%, from about 4.5% to about 5.5%, or about 4.5% to about 5% by weight,relative to the total weight of the composition. In preferred embodiments, the total amount of amino acids ranges from about 2.5% to about 7.5%, from about 3% to about 7%, from about 3.5% to about 6.5%, from about 3.75% to about 6.25%, from about 4% to about 6%, from about 4.25% to about 5.75%, from about 4.5% to about 5.5%, from about 4.75% to about 5.25%, or from about 4.8% to about 5.2% by weight, relative to the total weight of the composition. For example, the total amount of amino acids may be about 4.5%, about 4.6%, about 4.7%, about 4.8%, about 4.9%, about 5.0%, about 5.1%, about 5.2%, about 5.3%, about 5.4%, or about 5.5% by weight based on the total weight of the composition, including all ranges and sub-ranges using any of the foregoing values ​​as upper and lower limits. In certain preferred embodiments,the treatment compositions comprise a total amount of basic amino acids in any of the above ranges and amounts.

[0039] In a preferred embodiment, the treatment compositions comprise arginine and / or a salt thereof. In another preferred embodiment, where more than one amino acid is present, arginine is present in the treatment composition in an amount greater than the combined amounts of the other amino acid(s) present, for example, arginine comprises more than about 50%, such as more than about 60%, more than about 70%, more than about 80%, more than about 90%, more than about 95%, more than about 98%, or more than about 99% of all amino acids present in the composition. In another preferred embodiment, arginine is the only basic amino acid in the treatment composition.

[0040] In various preferred embodiments, the treatment composition comprises arginine in an amount ranging from about 1% to about 10%, such as from about 2.5% to about 7.5%, preferably from about 3% to about 7%, more preferably from about 3.5% to about 6.5%, more preferably from about 3.75% to about 6.25%, more preferably from about 4% to about 6%, more preferably from about 4.25% to about 5.75%, more preferably from about 4.5% to about 5.5%, even more preferably from about 4.75% to about 5.25%, and most preferably from about 4.8% to about 5.2%, or may be present in an amount of about 4.5%, about 4.6%, about 4.7%, about 4.8%, of about 4.9%, about 5.0%, about 5.1%, about 5.2%, about 5.3%, about 5.4% or about 5.5% by weight, based on the total weight of the composition,including all ranges and subranges using any previous values ​​as upper and lower limits.

[0041] In another preferred embodiment, the compositions according to the disclosure comprise serine and / or a salt thereof. If present, the amount of serine may range from about 0.01% to about 2%, such as from about 0.01% to about 1.5%, from about 0.01% to about 1%, from about 0.01% to about 0.5%, from about 0.01% to about 0.4%, from about 0.01% to about 0.3%, from about 0.01% to about 0.2%, from about 0.01% to about 0.1%, from about 0.05% to about 2%, from about 0.05% to about 1.5%, from about 0.05% to about 1%, from about 0.05% to about 0.5%, from about 0.05% to about 0.4%, from about 0.05% to about 0.3%, from about 0.05% to about 0.2%, from about 0.05% to about 0.1%, from about 0.1% to about 2%, from about 0.1% to about 1.5%, from about 0.1% to about 1% or from about 0.1% to about 0.5% by weight, based on the total weight of the composition.For example, in certain preferred embodiments, the treatment compositions may comprise serine in an amount ranging from about 0.05% to about 1.5%, preferably from about 0.1% to about 1%, more preferably from about 0.25% to about 0.75%, and most preferably from about 0.4% to about 0.6%, such as about 0.1%, about 0.25%, about 0.5%, about 0.75%, or about 1%. % by weight, based on the total weight of the composition, including all ranges and sub-ranges using any preceding values ​​as upper and lower limits.

[0042] In some embodiments, it may be advantageous to select at least one basic amino acid and at least one additional amino acid selected from acidic and / or neutral amino acids. For example, in preferred embodiments, it may be advantageous to include at least one basic amino acid and serine in compositions according to the disclosure, and to select total amounts of basic amino acids and serine such that the treatment composition has a weight ratio of the total amount of basic amino acids to the total amount of serine that is greater than about 2, such as greater than about 3, greater than about 4, greater than about 5, or greater than about 6.For example, the treatment composition may have a weight ratio of total basic amino acids to total serine ranging from about 2 to about 15, for example, from about 4 to about 14, from about 6 to about 13, from about 8 to about 12, or from about 9 to about 11. In other examples, the weight ratio of total basic amino acids to serine may be about 8, about 9, about 10, about 11, or about 12.In certain preferred embodiments, the treatment composition comprises serine and has a weight ratio of total basic amino acids to serine of from about 2 to about 15, preferably from about 8 to about 12, more preferably from about 9 to about 11, or about 8, about 9, about 10, about 11, or about 12, including all ranges and subranges using any of the foregoing values ​​as upper and lower limits.

[0043] In still other preferred embodiments, the treatment compositions comprise serine and arginine, and have a weight ratio of arginine to serine ranging from about 2 to about 15, preferably from about 8 to about 12, more preferably from about 9 to about 11, or is about 8, about 9, about 10, about 11, or about 12, including all ranges and sub-ranges using any of the foregoing values ​​as upper and lower limits. Osmolytes

[0044] Osmolytes are molecules, typically of lower molecular weight, used by cells to maintain cell volume, regulate osmotic pressure and maintain cellular homeostasis, for example in response to environmental stressors. Organic osmolytes include amino carboxylic acids, amino sulfonic acids, their salts and derivatives, carbohydrates such as sugars and sugar alcohols (polyols), polyamines, betaines, methylsulfonium compounds (e.g., dimethylsulfoniopropionate) and urea. As used herein, "osmolytes" include aminocarboxylic acid derivatives, aminosulfonic acid derivatives, and salts of the derivatives (collectively referred to herein as "amino acid derivatives"), but do not include aminocarboxylic acids, aminosulfonic acids, or their salts that are described above, and do not include polyols.

[0045] The treatment compositions of the disclosure comprise one or more osmolytes, preferably one or more organic osmolytes. In some embodiments, the treatment compositions comprise more than one osmolyte. While not intended to be theoretical, it is believed that the use of osmolytes of the disclosure allows treated hair to maintain a moisture balance, thereby reducing potential damage to the hair, or to restore a moisture balance to already damaged hair, thereby allowing the treated hair to regain reduced strength and / or elasticity associated with healthy hair.

[0046] In preferred embodiments, the useful osmolytes are chosen from carbohydrate sugars, polyamines, amino acid derivatives such as betaines, and more preferably are chosen from the compounds of formula (II) or their salts:

[0047] (Rl)(R2)(R3)m-A+-CR4R5-(X)nY (II)

[0048] in which:

[0049] - RI, R2 and R3 are independently chosen from C1-C4 alkyl groups, preferably C1-C2 alkyl groups, more preferably methyl;

[0050] - A is N or S;

[0051] - m and n are independently 0 or 1;

[0052] - X is a divalent alkyl group (= an alkylene group), linear or branched, saturated or unsaturated, having 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, optionally substituted with one or more groups selected from hydroxyl (-OH) or amino (-NH2); and

[0053] - Y is -COO- or -OSO3-;

[0054] provided that:

[0055] • when A is S, then m = 0 and R4 and R5 are chosen independently from a hydrogen atom or a saturated, unsaturated, linear, branched and / or cyclic (C1-C10) hydrocarbon chain (including aromatic and polycyclic chains), preferably (C1-C6), more preferably (C1-C4); optionally interrupted by one or more heteroatoms or groups selected from -S-, -N=, -NH- or -C(NH)- and / or optionally substituted with one or more groups selected from hydroxyl (-OH), amino (-NH2), -SH, -COOH, or -CONH2;

[0056] • when A is N and m = 0, R4 represents a hydrogen atom or an alkyl (in C1-C8) saturated, linear or branched, preferably a (C1-C4) alkyl group; and R5 forms, with the nitrogen atom, a saturated heterocycle comprising from 5 to 8 ring members, preferably from 5 to 6 ring members, knowing that this cycle can be substituted with one or more groups chosen from a hydroxyl or an (C1-C4) alkyl; and

[0057] • when A is N and m = 1, then R4 and R5 are independently chosen from a hydrogen atom or a saturated, unsaturated, linear, branched and / or cyclic (C1-C10) hydrocarbon chain (including aromatic and polycyclic chains), preferably (C1-C6), more preferably (C1-C4); optionally interrupted by one or more heteroatoms or groups selected from -S-, -N=, -NH-, or -C(NH)-, and / or optionally substituted with one or more groups selected from hydroxyl (-OH), amino (-NH2), -SH, -COOH, or -CONH2.

[0058] Useful and non-limiting polyamine compounds may comprise primary and / or secondary and / or tertiary and / or quaternary amine functional groups. For example, polyamines that may be selected include diamines, triamines, tetramines, pentamines, and polymeric polyamines or polyimines, such as, for example, hexamethylenediamine, diethylenetetramine, diethylenetriamine, polyethyleneimine (PEI), polyvinylamine, polyetheramine, polylysine, ethylenediamine, 1,3-diaminopropane, cadaverine, spermidine, spermine, putrescine, tetraethylmethylenediamine, triethylenetetramine, or combinations of two or more thereof. In some embodiments, useful polyamines are selected from putrescine, spermidine, and / or spermine.

[0059] Useful and non-limiting examples of betaines include glycine betaine, valine betaine, alanine betaine, proline betaine, hydroxyproline betaine, etc. Salts of betaines may also be used and are expressly included in the term "betaine" unless expressly stated otherwise. In particularly preferred embodiments, the betaines are selected from those corresponding to formula (II). Examples of useful compounds of formula (II) include the compounds shown in Figures 5A and 5B. As shown in [Fig. 5A], in some embodiments, the compounds of formula (II) are in zwitterionic form, and as shown in [Fig. 5B], in some embodiments, the compounds of formula (II) have a corresponding counterion, X.The counterion is not limited and may be any suitable counterion, e.g., a chloride ion, a bromide ion, an iodide ion, a sulfate anion, a sulfonate anion, a methyl sulfate anion, a phosphate anion, a nitrate anion, etc. Thus, as used herein, a "compound of formula (II)" expressly includes both the ionic form of the compound as well as the salt forms, whether or not specified.

[0060] As shown in Figures 5A and 5B, examples of useful compounds of formula (II) include betaine and betaine derivatives (referred to herein as "betaines"), e.g., valine betaine, glutamic acid betaine, glutamine betaine, trimethyllysine, glycine betaine (trimethylglycine), histidine betaine, N-methylhistidine betaine, alanine betaine, beta-alanine betaine, choline sulfate, pipecolic acid betaine, proline betaine, hydroxyproline betaine, tyrosine betaine, phenylalanine betaine, tryptophan betaine, leucine betaine, isoleucine betaine and / or dimethylsulfoniopropionate. In a preferred embodiment, the osmolyte is glycine betaine (trimethylglycine), alone or in combination with one or more additional osmolytes, for example one or more additional compounds of formula (II).

[0061] In certain preferred embodiments, the treatment compositions that can be used according to the disclosure comprise at least one compound of formula (II). In additional preferred embodiments, the compositions according to the disclosure comprise one or more compounds of formula (II), i.e., a zwitterionic amino acid derivative bearing a quaternary ammonium group and comprising in total from 1 to 12 carbon atoms, such as from 2 to 10 carbon atoms, or from 3 to 8 carbon atoms.

[0062] In certain preferred embodiments, the treatment compositions comprise at least one compound of formula (II) wherein R1 = R2 = methyl; A is N; and / or Y is COO-. In certain other preferred embodiments, the treatment compositions comprise at least one compound of formula (II) wherein R3 is methyl. In other preferred embodiments, the treatment compositions comprise at least one compound of formula (II) wherein X is a divalent, linear or branched, preferably saturated alkyl group having from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, optionally substituted with a group selected from hydroxyl or amino.In still further preferred embodiments, the treatment compositions comprise at least one compound of formula (II) wherein X is a divalent, linear or branched, preferably saturated alkyl group having from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, more preferably from 1 to 2 carbon atoms (unsubstituted), such as methylene or ethylene. In still further preferred embodiments, the treatment compositions comprise at least one compound of formula (II) wherein R4 and R5, which may be the same or different, are selected from a hydrogen atom, a saturated, linear or branched (C1-C10) alkyl group, preferably a (C1-C6) alkyl, more preferably a (C1-C4) alkyl; a phenyl group; a benzyl group; an alkyl group substituted with a cyclic group (saturated or unsaturated, mono- or bi-cyclic); a group. cyclic (saturated or unsaturated, mono- or bi-cyclic) substituted with an alkyl group; all these groups being optionally interrupted by one or more heteroatoms or groups selected from -S-, -N=, -NH- or -C(NH)- and / or optionally substituted with one or more groups selected from hydroxyl (-OH), amino (-NH2), -SH, -COOH, -CONH2; more preferably where R4 is hydrogen and / or where R5 is a hydrogen atom or a saturated, linear or branched (C1-C6) alkyl, more preferably a (C1-C4) alkyl; optionally substituted with a group selected from hydroxyl (-OH), amino (-NH2), -COOH, or -C0NH2. In certain preferred embodiments, when A is N and m = 0, R5 together with the nitrogen atom forms a saturated heterocycle comprising from 5 to 8 ring members, preferably from 5 to 6 ring members, optionally substituted with a hydroxy group.In more preferred embodiments, RI = R2 = methyl, A is N, Y is COO-, and X (if present) is a divalent alkyl group which may be straight or branched, saturated or unsaturated, having from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, more preferably from 1 to 2 carbon atoms.

[0063] In a preferred embodiment, the treatment composition comprises at least one compound of formula (II) in which RI = R2 = R3 = methyl; A is N; Y is COO-; X is a divalent, linear or branched, preferably saturated alkyl group having from 1 to 4 carbon atoms, optionally substituted with a group selected from hydroxyl or amino, more preferably from 1 to 2 carbon atoms (unsubstituted), such as methylene or ethylene; R4 is hydrogen; and R5 forms, with the nitrogen atom, a saturated heterocycle comprising from 5 to 8 ring members, preferably from 5 to 6 ring members, optionally substituted with a hydroxy group.

[0064] In preferred embodiments, the osmolyte in the treatment composition comprises, consists essentially of, or consists of one or more of the compounds shown in Figures 5A and 5B. In more preferred embodiments, the compositions according to the disclosure comprise trimethylglycine (interchangeably referred to as glycine betaine), optionally in combination with at least one additional osmolyte, and in particularly preferred embodiments, the osmolyte in the treatment composition comprises, consists essentially of, or consists of glycine betaine optionally with at least one additional compound of formula (II).

[0065] Useful and non-limiting examples of carbohydrate sugars that may be used include C3-C6 monosaccharides, for example, pentoses and / or derivatives thereof, or hexoses and / or derivatives thereof. For example, the sugars may optionally be selected from xylose, arabinose, ribose, 2-deoxy-ribose, ribulose, deoxyribulose, arabinose, xylulose, allose, altrose, glucose (including dextrose), glucosamine, mannose, gulose, idose, galactose, talose, sorbose, psicose, fructose, tagatose, or combinations of two or more thereof. In at least some embodiments, the sugars are selected from disaccharides, e.g., sucrose, maltose, lactose, cellobiose, trehalose, dextran, or from polysaccharides, e.g., maltotriose, starch, dextrins, cellulose, glycogen, or combinations of two or more thereof. In some embodiments, the sugars are preferably selected from trehalose, glucose, sucrose, fructose, fructans, or combinations of two or more thereof.

[0066] In various embodiments, the total amount of osmolytes present in the treatment composition may range from about 0.01% to about 15%, such as, for example, from about 0.1% to about 10%, 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 about 6%, from about 0.5% to about 5%, from about 0.5% 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 1% to about 10%, from about 1% to about 9%, from about 1% to about 8%, from about 1% to about 7%, from about 1% to about 6%, from about 1% to about 5%,from about 1% to about 4%, from about 1% to about 3%, from about 1% to about 2%, from about 1.5% to about 10%, from about 1.5% to about 9%, from about 1.5% to about 8%, from about 1.5% to about 7%, from about 1.5% to about 6%, from about 1.5% to about 5%, from about 1.5% to about 4%, from about 1.5% to about 3%, from about 1.5% to about 2%, from about 2% to about 10%, from about 2% to about 9%, from about 2% to about 8%, from about 2% to about 7%, from about 2% to about 6%, from about 2% to about 5%, from about 2% to about 4%, from about 2% to about 3%, from about 2.25% to about 10%, from about 2.25% to about 9%, from about 2.25% to about 8%, from about 2.25% to about 7%, from about 2.25% to about 6%, from about 2.25% to about 5%, from about 2.25% to about 4%, from about 2.25% to about 3%, from about 2.5% to about 10%, from about 2.5% to about 9%, from about 2.5% to about 8%, from about 2.5% to about 7%, from about 2,5% to about 6%, from about 2.5% to about 5%, from about 2.5% to about 4%, from about 2.5% to about 3% by weight, based on the total weight of the composition. For example, the total amount of osmolytes present in the treatment composition may be from about 2.0%, from about 2.1%, from about 2.2%, from about 2.3%, from about 2.4%, , of about 2.5%, about 2.6%, about 2.7%, about 2.8%, about 2.9% or about 3.0% by weight, based on the total weight of the composition, including all ranges and sub-ranges using any of the preceding values ​​as upper and lower limits.

[0067] In preferred embodiments, the treatment composition comprises at least one betaine, and the total amount of betaines ranges from about 0.5% to about 5%, for example from about 1% to about 5%, preferably from about 1.25% to about 4%, more preferably from about 1.5% to about 3.5%, more preferably from about 2% to about 3% or from about 2% to about 2.5%, more preferably from 2.25% to about 2.75%, and most preferably from about 2.3% to about 2.6%, or may be from about 2.0%, from about 2.1%, from about 2.2%, from about 2.3%, from about 2.4%, from about 2.5%, from about 2.6%, from about 2.7%, from about 2.8%, from about 2.9%, or about 3.0% by weight, based on the total weight of the composition, including all ranges and sub-ranges using any of the preceding values ​​as upper and lower limits.

[0068] In a particularly preferred embodiment, the treatment composition comprises glycine betaine in an amount ranging from about 0.5% to about 5%, for example from about 1% to about 5%, preferably from about 1.25% to about 4%, more preferably from about 1.5% to about 3.5%, more preferably from about 2% to about 3% or from about 2% to about 2.5%, more preferably from about 2.25% to about 2.75%, and most preferably from about 2.3% to about 2.6%, or the glycine betaine may be present in an amount of about 2.0%, about 2.1%, about 2.2%, about 2.3%, about 2.4%, about 2.5%, about 2.6%, or about 2.7%, of about 2.8%, about 2.9%, or about 3.0% by weight, based on the total weight of the composition, including all ranges and sub-ranges using any of the preceding values ​​as upper and lower limits.

[0069] In some embodiments, it may be advantageous to select the amounts of amino acids and osmolytes so as to obtain a weight ratio of the total amount of amino acid(s) and their salts in the treatment composition to the total amount of osmolytes in the treatment composition that is greater than about 0.1, for example, greater than about 0.2, greater than about 0.5, greater than about 1, greater than about 1.25, greater than about 1.5, greater than about 1.75, or greater than about 2. In various embodiments, the weight ratio of the total amount of amino acid(s) and their salts to the total amount of osmolytes may range from about 0.1 to about 10, such as from about 0.2 to about 8, from about 0.5 to about 6, from about 1 to about 5, from about 1.2 to about 4, or from about 1.5 to about 3.5. In other embodiments, the weight ratio of the amount total amount of amino acid(s) and their salts and the total amount of osmolytes may range from more than 1 to about 4, such as from about 1.25 to about 3.5, from about 1.5 to about 3, from about 1.75 to about 2.5, from about 1.75 to about 2.25, or from about 1.8 to about 2.2. For example, the weight ratio of the total amount of amino acid(s) in the treatment composition to the total amount of osmolytes in the treatment composition may be about 1.1, about 1.2, about 1.3, about 1.4, about 1.5, about 1.6, about 1.7, about 1.8, about 1.9, about 2, about 2.1, about 2.2, about 2.3, about 2.4, or about 2.5, including all ranges and subranges using any of the foregoing values ​​as upper and lower limits.

[0070] In some embodiments, the treatment compositions comprise a total amount of amino acids selected from compounds of formula (I), and a total amount of osmolytes selected from compounds of formula (II) such that a weight ratio of compounds of formula (I):compounds of formula (II) is greater than about 0.5, greater than about 0.75, or greater than about 1, for example, greater than about 1.25, greater than about 1.5, greater than about 1.75, or greater than about 2. In some embodiments, the weight ratio of compounds of formula (I):compounds of formula (II) in the composition may range from about 0.5 to about 6, for example, from about 1 to about 4, from about 1.25 to about 3.5, from about 1.5 to about 3, from about 1.75 to about 2.5, from about 1.75 to about 2.25, or from about 1.8 to about 2.2.For example, the weight ratio of compounds of formula (I):compounds of formula (II) in the composition may be about 0.5, about 0.6, about 0.7, about 0.8, about 0.9, about 1, about 1.1, about 1.2, about 1.3, about 1.4, about 1.5, about 1.6, about 1.7, about 1.8, about 1.9, about 2, about 2.1, about 2.2, about 2.3, about 2.4 or about 2.5, including all ranges and sub-ranges using any of the foregoing values ​​as upper and lower limits.

[0071] In a particularly preferred embodiment, the treatment composition comprises arginine and glycine betaine and has a weight ratio of arginine to glycine betaine greater than 1, for example, greater than about 1.25, greater than about 1.5, greater than about 1.75, or greater than about 2, for example, from greater than 1 to about 4, preferably from about 1.5 to about 3, more preferably from about 1.75 to about 2.5, and most preferably from about 1.75 to about 2.25. In another particularly preferred embodiment, the treatment composition comprises arginine, serine and glycine betaine and has a weight ratio of the total amount of [arginine + serine] to glycine betaine greater than 1, for example greater than about 1.25, greater than about 1.5, greater than about 1.75, or greater than about 2, for example ranging from more than 1 to about 4, preferably from about 1.5 to about 3, more preferably from about 1.75 to about 2.5, and most preferably from about 1.75 to about 2.25. Carboxylic acids

[0072] The treatment compositions that can be used in the methods according to the disclosure include at least one carboxylic acid. Optionally, the treatment compositions can include at least two carboxylic acids, at least three carboxylic acids, etc. According to various embodiments of the disclosure, useful carboxylic acids include organic compounds that include, for example, one (mono-), two (di-), three (tri-) or more acid functional groups and at least one carbon atom.

[0073] The carboxylic acids that may be used may optionally have a molecular weight of less than about 500 g / mol, less than about 400 g / mol, less than about 300 g / mol, or less than about 200 g / mol. In preferred embodiments, the carboxylic acids have a molecular weight of less than about 300 g / mol, or less than about 200 g / mol.

[0074] Salts of carboxylic acids may also be used and are expressly included in the term "carboxylic acid" unless otherwise indicated. Salts include salts with organic or inorganic bases, 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 certain embodiments, and in particular sodium salts.

[0075] In preferred embodiments, the carboxylic acids comprise from 2 to 20 carbon atoms, such as from 2 to 18 carbon atoms, from 3 to 16 carbon atoms, or from 3 to 14 carbon atoms. In some preferred embodiments, the treatment compositions comprise one or more hydroxylated (poly)carboxylic acids comprising from 2 to 10 carbon atoms, such as from 2 to 8 carbon atoms, or from 3 to 6 carbon atoms, and may be saturated or unsaturated, and linear or branched, and / or a salt thereof. These (poly)acids are different from the amino acid compounds described above. Useful (poly)acids comprise at least one -COOH group (in acid or salified form); they can thus comprise a single -COOH group (monoacid) or can comprise more than one -COOH group, for example two (in acid or salified form), or two or three -COOH groups (in acid or salified form) (polyacids).Useful (poly)acids also comprise at least one -OH group, such as one to three or two to three -OH groups, for example one, two or three -OH groups. Preferably, the (poly)acids comprise in total 2 to 8 or 3 to 6 carbon atoms, and two . with three -OH groups, and their hydrocarbon chain is saturated or unsaturated, linear or branched, and preferably saturated and linear. In certain preferred embodiments, the hydroxylated (poly)carboxylic acids and / or their salts comprise a total of 3 to 6 carbon atoms, one to three -OH groups, and two to three -COOH groups (in acid or salified form). Unless otherwise indicated, as used herein, the term "(poly)acid" includes both monoacids and polyacids.

[0076] Non-limiting examples of monocarboxylic acids that may be selected 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 thereof. In some embodiments, the carboxylic acid may comprise, consist essentially of, or consist of lactic acid and / or a salt thereof.

[0077] Non-limiting examples of dicarboxylic acids that may be selected include oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, their salts, or combinations of two or more thereof. In some embodiments, the treatment compositions may include oxalic acid, malonic acid, malic acid, maleic acid, their salts, or combinations of two or more thereof.

[0078] Non-limiting examples of tricarboxylic acids include citric acid, isocitric acid, aconitic acid, propane-1,2,3-tricarboxylic acid, their salts, or combinations of two or more thereof. In some embodiments, the carboxylic acid may comprise, consist essentially of, or consist of citric acid and / or a salt thereof.

[0079] 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 thereof. In particularly preferred embodiments, the carboxylic acids are selected from α-hydroxy acids and their salts, and in particular from lactic acid, glycolic acid, tartaric acid or citric acid, and their salts, in particular alkali metal or alkaline earth metal salts.In some embodiments, it may be particularly advantageous to select citric acid, lactic 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.

[0080] The total amount of carboxylic acid(s) may range from about 0.5% to about 20% by weight, relative to the total weight of the composition. For example, in some embodiments, the total amount of carboxylic acids ranges from about 1% to about 15%, such as from about 1% to about 12%, from about 1% to about 10%, from about 1% to about 9%, from about 1% to about 8%, from about 1% to about 7%, from about 1% to about 6%, from about 1% to about 5.5%, from about 1% to about 5%, from about 1% to about 4.5%, from about 1% to about 4%, from about 1% to about 3.5%, about 1% to about 3%, about 1% to about 2.5%, about 1% to about 2%, about 1% to about 1.5%, about 1.5% to about 15%, about 1.5% to about 12%, about 1.5% to about 10%, about 1.5% to about 9%, about 1.5% to about 8%, about 1.5% to about 7%, about 1.5% to about 6%, about 1.5% to about 5.5%, about 1.5% to about 5%, about 1,5% to about 4.5%, about 1.5% to about 4%, about 1.5% to about 3.5%, about 1.5% to about 3%, about 1.5% to about 2.5%, about 1.5% to about 2%, about 2% to about 15%, about 2% to about 12%, about 2% to about 10%, about 2% to about 9%, about 2% to about 8%, about 2% to about 7%, about 2% to about 6%, about 2% to about 5.5%, about 2% to about 5%, about 2% to about 4.5%, about 2% to about 4%, about 2% to about 3.5%, about 2% to about 3%, about 2% to about 2.5%, about 2.5% to about 15%, about 2.5% to about 12%, about 2.5% to about 10%, about 2.5% to about 9%, about 2.5% to about 8%, about 2.5% to about 7%, about 2.5% to about 6%, about 2.5% to about 5.5%, about 2.5% to about 5%, about 2.5% to about 4.5%, about 2.5% to about 4%, about 2.5% to about 3.5%, about 2.5% to about 3%, about 3% to about 15%, about 3% to about 12%,about 3% to about 10%, about 3% to about 9%, about 3% to about 8%, about 3% to about 7%, about 3% to about 6%, about 3% to about 5.5%, about 3% to about 5%, about 3% to about 4.5%, about 3% to about 4%, about 3% to about 3.5%, about 3.5% to about 15%, about 3.5% to about 12%, about 3.5% to about 10%, about 3.5% to about 9%, about 3.5% to about 8%, about 3.5% to about 7%, about 3.5% to about 6%, about 3.5% to about 5.5%, about 3.5% to about 5%, about 3.5% to about 4.5%, about 3.5% to about 4%, about 4% to about 15%, about 4% to about 12%, about 4% to about 10%, about 4% to about 9%, about 4% to about 8%, about 4% to about 7%, about 4% to about 6%, about 4% to about 5.5%, about 4% to about 5%, about 4% to about 4.5%, about 4.5% to about 15%, about 4.5% to about 12%, about 4.5% to about 10%, about 4.5% to about 9%,about 4.5% to about 8%, about 4.5% to about 7%, about 4.5% to about 6%, about 4.5% to about 5.5%, about 4.5% to about 5%, about 5, % to about 15%, about 5% to about 12%, about 5% to about 10%, about 5% to about 9%, about 5% to about 8%, about 5% to about 7%, about 5% to about 6.5%, about 5% to about 6%, about 5% to about 5.5%, about 5.5% to about 15%, about 5.5% to about 12%, about 5.5% to about 10%, about 5.5% to about 9%, about 5.5% to about 8%, about 5.5% to about 7%, about 5.5% to about 6.5%, about 5.5% to about 6%, about 6% to about 15%, about 6% to about 12%, about 6% to about 10%, about 6% to about 9%, about 6% to about 8%, about 6% to about 7%, or about 6% to about 6.5% by weight, relative to the total weight of the composition.

[0081] In preferred embodiments, the total amount of carboxylic acid(s) ranges from about 0.5% to about 20%, such as from about 2% to about 15%, from about 4% to about 10%, from about 4.5% to about 8%, from about 5% to about 7%, from about 5.5% to about 6.5%, from about 5.7% to about 6.3%, or from about 5.8% to about 6.2% by weight, based on the total weight of the composition.For example, in some preferred embodiments, the treatment composition comprises at least one carboxylic acid selected from citric acid, lactic acid, tartaric acid, salts thereof, or combinations thereof, and has a total amount of carboxylic acids and salts ranging from about 0.5% to about 20%, such as from about 2% to about 15%, from about 4% to about 10%, preferably from about 4.5% to about 8%, more preferably from about 5% to about 7%, more preferably from about 5.5% to about 6.5%, more preferably from about 5.7% to about 6.3%, and most preferably from about 5.8% to about 6.2% by weight, based on the total weight of the composition.

[0082] It may be advantageous in some embodiments to select amounts of amino acids and carboxylic acids such that the treatment composition has a weight ratio of total amino acids to total carboxylic acids greater than about 0.75. For example, in various embodiments, the treatment composition has a weight ratio of total amino acids to total carboxylic acids greater than about 0.8, such as greater than about 0.9, greater than about 1, greater than about 1.1, greater than about 1.2, greater than about 1.3, greater than about 1.4, or greater than about 1.5.In some embodiments, the treatment composition has a weight ratio of total amino acids to total carboxylic acids ranging from about 0.75 to about 2, for example, from about 0.8 to about 1.5, from about 0.8 to about 1.35, or from about 0.8 to about 1.2. In some preferred embodiments, the treatment composition comprises arginine and at least one carboxylic acid selected from citric acid, lactic acid, tartaric acid, salts thereof, or combinations thereof, and . has a weight ratio of the total amount of amino acids and their salts to the total amount of carboxylic acids and their salts ranging from about 0.75 to about 2, preferably from about 0.8 to about 1.5, more preferably from about 0.8 to about 1.35, and most preferably from about 0.8 to about 1.2. Solvents

[0083] The treatment compositions that may be used in the methods according to the disclosure comprise at least one solvent. In various embodiments, the solvent may be selected from water, non-aqueous solvents, or a combination thereof.

[0084] In preferred embodiments, the solvent includes water. In some embodiments, the treatment composition comprises from about 50% to about 98% water, by weight, based on the total weight of the composition. In some embodiments, the treatment composition comprises water in an amount ranging from at least 50% by weight to about 95% by weight, such as from about 50% to about 90%, from about 55% to about 90%, from about 60% to about 90% by weight, or from about 60% to about 80% by weight, based on the total weight of the composition.

[0085] In other embodiments, the solvent may include at least one non-aqueous solvent. Non-limiting examples of non-aqueous solvents that may be used include, for example, glycerin, C1-4 alcohols, organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols, glycols, vegetable oils, mineral oils, liposomes, lamellar lipid materials, or combinations thereof.The non-aqueous solvent may be selected from organic solvents, for example monoalcohols and polyols such as ethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol and phenylethyl alcohol, or glycols or glycol ethers such as, for example, monomethyl-, monoethyl- and monobutyl-ethers of ethylene glycol, propylene glycol or their ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol, as well as alkyl ethers of diethylene glycol, for example monoethyl ether or monobutyl ether of diethylene glycol.

[0086] Preferably, the compositions comprise at least one polyol. The polyols may be selected from diols and triols. In other embodiments, the polyols may be selected from C2-C16 polyols, such as C2-C12 polyols, C2-C8 polyols or C3-C8 polyols. In various embodiments, the polyols that may be used are linear or branched, saturated or unsaturated, and substituted or unsubstituted polyols. Thus, in various embodiments, one or more polyols may be selected from C2-C16, C2-C12, C2-C8 diols. or C3-C8, or C2-C16, C2-C12, C2-C8 or C3-C8 triols, any of which may be linear or branched, saturated or unsaturated, and substituted or unsubstituted.

[0087] By way of non-limiting example, polyols such as isopropyl alcohol, propyl alcohol, benzyl alcohol and phenylethyl alcohol, or glycols or glycol ethers such as, for example, monomethyl-, monoethyl- and monobutyl-ethers of ethylene glycol, propylene glycol or their ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol, as well as alkyl ethers of diethylene glycol, for example monoethyl ether or monobutyl ether of diethylene glycol may be chosen. In some embodiments, the polyols are selected from propanediol, butanediol, pentanediol, hexanediol, heptanediol, octanediol, 1,2,6-hexanetriol, 1,2,4-butanetriol, trimethylolpropane, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, caprylyl glycol, 1,2-hexanediol, 1,2-pentanediol, 2-ethyl-2-methyl-1,3-propanediol, 3,3-dimethyl-1,2-butanediol, 2,2-diethyl-1,3-propanediol, 2-methyl-2-propyl-1,3-propanediol, 2,4-dimethyl-2,4-pentanediol, 2,5-dimethyl-2,5-hexanediol, 5-hexene-1,2-diol, 2-ethyl-1,3-hexanediol, 4-methyl-1,2-pentanediol, or combinations of two or more thereof.In some preferred embodiments, the polyols are selected from glycols such as ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, pentylene glycol, 1,3-propanediol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, caprylyl glycol, glycerin, diglycerin, and combinations of two or more thereof. In a particularly preferred embodiment, the solvent comprises at least one polyol selected from propylene glycol, dipropylene glycol, tripropylene glycol, propanediol, propylene carbonate, PPG-3 methyl ether, dimethylisosorbide, hexylene glycol, ethanol, glycerin, or combinations of two or more thereof.In at least some preferred embodiments, the solvent comprises water and at least one polyol, wherein the polyol(s) comprise(s), consist(s) essentially of, or consist(s) of one or more C2-C16 diols and / or C2-C16 triols, for example, C2-C8 diols and / or C2-C8 triols. In other preferred embodiments, the solvent comprises water and at least one polyol, wherein the polyol(s) comprise(s), consist(s) essentially of, or consist(s) of one or more glycols, for example, propylene glycol and / or dipropylene glycol, and in particularly preferred embodiments, the solvent comprises water and at least one polyol, wherein the polyol(s) comprise(s), consist(s) essentially of, or consist(s) of dipropylene glycol. .

[0088] If present, the total amount of non-aqueous solvents in the treatment composition may range from about 0.1% to about 20%, such as from about 1% to about 20%, from about 1.5% to about 15%, or from about 2% to about 12% by weight, based on the total weight of the composition. In certain preferred embodiments, the solvent comprises water and at least one non-aqueous solvent, preferably selected from polyols.In some embodiments, the treatment composition comprises water and at least one non-aqueous solvent, wherein the total amount of non-aqueous solvents ranges from about 0.5% to about 18%, preferably from about 1% to about 15%, more preferably from about 1.5% to about 12%, more preferably from about 2% to about 11%, and most preferably from about 3% to about 10% by weight, based on the total weight of the composition, and optionally further wherein the non-aqueous solvent comprises at least one solvent selected from propylene glycol, dipropylene glycol, tripropylene glycol, propanediol, propylene carbonate, PPG-3 methyl ether, dimethylisosorbide, hexylene glycol, ethanol, or mixtures of two or more thereof, preferably selected from propylene glycol, dipropylene glycol, or a mixture of two or more of these. Surfactants

[0089] The treatment compositions that may be used in the methods according to the disclosure may optionally comprise at least one surfactant. For example, the treatment compositions may comprise one or more cationic surfactants and / or amphoteric surfactants, and in some embodiments, the compositions may comprise mixtures of surfactants having the same or different ionicities.

[0090] Although the treatment compositions may optionally include one or more anionic surfactants and / or nonionic surfactants, in at least some embodiments, the compositions are free or substantially free of anionic surfactants and / or nonionic surfactants. For example, in some embodiments, the compositions comprise less than about 3%, such as less than about 2.5%, less than about 2%, less than about 1.75%, less than about 1.5%, less than about 1.25%, less than about 1%, less than about 0.75%, less than about 0.5%, less than about 0.25%, less than about 0.2%, less than about 0.1%, less than about 0.05%, less than about 0.01%, or less than about 0.001% of anionic surfactants and / or nonionic surfactants.

[0091] In at least some embodiments, the treatment compositions comprise at least one cationic surfactant. The term "cationic surfactant" refers to a surfactant that is positively charged when contained in the composition(s) according to the disclosure. This surfactant may carry one or more charges permanent positives or may contain one or more cationizable functions in the composition according to the disclosure. Non-limiting examples of useful cationic surfactants include brassicamidopropyldimethylamine, behentrimonium chloride, cetrimonium chloride, behenalkonium chloride, benzethonium chloride, cetylpyridinium chloride, behentrimonium chloride, lauralkonium chloride, cetalkonium chloride, cetrimonium bromide, cetrimonium hydrofluoride, chlorallylmethenamine chloride (Quaternium-15), distearyldimonium chloride (Quaternium-5), dodecyldimethylethylbenzylammonium chloride (Quatemium-14), Quatemium-22, Quaternium-26, Quatemium-18 hectorite, dimethylaminoethyl chloride hydrochloride, cysteine ​​hydrochloride, diethanolammonium phosphate POE (10) oleyl ether, diethanolammonium phosphate POE (3) oleyl ether, tallow alkonium chloride,dimethyldioctadecylammoniumbentonite, stearalkonium chloride, domiphene bromide, denatonium benzoate, myristalkonium chloride, laurtrimonium chloride, ethylenediamine dihydrochloride, guanidine hydrochloride, pyridoxine HCl, iofetamine hydrochloride, meglumine hydrochloride, methylbenzethonium chloride, myrtrimonium bromide, oleyltrimonium chloride, polyquatemium-1, procaine hydrochloride, cocobetaine, stearalkonium bentonite, stearalkonium hectonite, stearyltrihydroxyethylpropylenediamine dihydrofluoride, sulftrimonium chloride, hexadecyltrimethylammonium bromide, stearamidopropyldimethylamine, or combinations thereof. In preferred embodiments, the compositions comprise at least one cationic surfactant selected from brassicamidopropyldimethylamine, behentrimonium chloride, cetrimonium chloride, stearamidopropyldimethylamine,or combinations of two or more of these. ,

[0092] If present, the total amount of cationic surfactants may be up to about 10%, such as up to about 9%, up to about 8%, up to about 7%, up to about 6%, up to about 5%, up to about 4%, up to about 3.5%, up to about 3%, up to about 2.5%, up to about 2%, up to about 1.5%, up to about 1%, or up to about 0.5% by weight, based on the total weight of the composition. For example, the total amount of cationic surfactants may be from about 0.001% to about 10%, from about 0.01% to about 8%, from about 0.1% to about 6%, or from about 0.5% to about 4% by weight, based on the total weight of the composition.In at least some preferred embodiments, the treatment compositions comprise at least one cationic surfactant, and have a total amount of cationic surfactants ranging from about 0.25% to about 8%, preferably from about 0.5% to about 7%, more preferably from about 0.75% to about 6%. %, and most preferably from about 1% to about 5% by weight, relative to the total weight of the composition.

[0093] In at least some embodiments, the treatment compositions comprise at least one amphoteric surfactant. Non-limiting examples of useful amphoteric surfactants include secondary and tertiary aliphatic amine derivatives where the aliphatic radical may be a straight or branched chain and one of the aliphatic substituents contains from about 8 to about 18 carbon atoms and one contains an anionic group, such as a carboxy, sulfonate, sulfate, phosphate, or phosphonate. Examples of amphoteric surfactants include sodium cocaminopropionate, sodium cocaminodipropionate, sodium cocoamphoacetate, sodium cocoamphohydroxypropylsulfonate, sodium cocoamphopropionate, sodium masamphopropionate, sodium lauraminopropionate, sodium lauroamphoacetate, sodium lauroamphohydroxypropylsulfonate, sodium lauroamphopropionate, sodium masamphopropionate,sodium lauriminodipropionate, ammonium cocaminopropionate, ammonium cocaminodipropionate, ammonium cocoamphoacetate, ammonium cocoamphohydroxypropylsulfonate, ammonium cocoamphopropionate, ammonium cornamphopropionate, ammonium lauraminopropionate, ammonium lauroamphoacetate, ammonium lauroamphohydroxypropylsulfonate, ammonium lauroamphopropionate, ammonium cornamphopropionate, ammonium lauriminodipropionate, triethanolamine cocaminopropionate, triethanolamine cocaminodipropionate, triethanolamine cocoamphoacetate, triethanolamine cocoamphohydroxypropylsulfonate, triethanolamine cocoamphopropionate, triethanolamine cornamphopropionate, triethanolamine lauraminopropionate, triethanolamine lauroamphoacetate, triethanolamine lauroamphohydroxypropylsulfonate, triethanolamine lauroamphopropionate, triethanolamine cornamphopropionate,triethanolamine lauriminodipropionate, cocoamphodipropionic acid, disodium caproamphodiacetate, disodium caproamphoadipropionate, disodium capryloamphodiacetate, disodium capryloamphodipriopionate, disodium cocoamphocarboxyethylhydroxypropylsulfonate, disodium cocoamphodiacetate, disodium cocoamphodipropionate, disodium dicarboxyethylcocopropylenediamine, disodium laureth-5 carboxyamphodiacetate, disodium lauriminodipropionate, disodium lauroamphodiacetate, disodium lauroamphodipropionate, disodium oleoamphodipropionate, disodium PPG-2-isodecethyl-7 carboxyamphodiacetate, lauraminopropionic acid, lauroamphodipropionic acid, , laurylaminopropylglycine and lauryldiethylenediaminoglycine.

[0094] Betaine type surfactants can also be used. For example, cocodimethylcarboxymethyl betaine, lauryldimethylcarboxymethyl betaine, lauryldimethylalphacarboxyethyl betaine, cetyldimethylcarboxymethyl betaine, cetyldimethyl betaine, laurylbis-(2-hydroxyethyl)carboxymethyl betaine, stearylbis-(2-hydroxypropyl)carboxymethyl betaine, oleyldimethylgamma-carboxypropyl betaine, laurylbis-(2-hydroxypropyl)alpha-carboxyethyl betaine, cocodimethylsulfopropyl betaine, stearyldimethylsulfopropyl betaine, lauryldimethylsulfoethyl betaine, laurylbis-(2-hydroxyethyl)sulfopropyl betaine, oleyl betaine or cocamidopropyl betaine may be selected.

[0095] If present, the total amount of amphoteric surfactants may be up to about 10%, such as up to about 9%, up to about 8%, up to about 7%, up to about 6%, up to about 5%, up to about 4%, up to about 3.5%, up to about 3%, up to about 2.5%, up to about 2%, up to about 1.5%, up to about 1%, or up to about 0.5% by weight, based on the total weight of the composition. For example, the total amount of amphoteric surfactants may be from about 0.001% to about 6%, from about 0.01% to about 4%, from about 0.1% to about 3%, or from about 0.5% to about 2% by weight, based on the total weight of the composition. In at least some embodiments, the treatment compositions are free or substantially free of amphoteric surfactants. Fatty compounds

[0096] Optionally, the treatment compositions that may be used in the methods according to the disclosure may include at least one fatty compound. In some embodiments, the at least one fatty compound may be selected from lower alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, oils such as mineral, vegetable, animal, silicone and non-silicone oils, silicone and non-silicone waxes, or combinations of two or more thereof.

[0097] In some embodiments, the treatment compositions include at least one fatty compound selected from volatile and non-volatile silicone oils, which may optionally be aminofunctionalized. Non-limiting examples of silicone oils that may be used include dimethicone, amodimethicone, cyclomethicone, polysilicone-11, phenyltrimethicone, trimethylsilylamodimethicone, and stearoxytrimethylsilane. For example, the composition may comprise at least one silicone selected from amodimethicone, PEG-7 dimethicone, PEG-8 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, PEG-14 dimethicone, PEG-17 dimethicone, PEG / PPG-3 / 10 dimethicone, PEG / PPG-4 / 12 dimethicone, PEG / PPG-17 / 18 dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, PEG-8 dimethicone benzoate, PEG-7 dimethicone phosphate, PEG-8 dimethicone phosphate, PEG-10 dimethicone phosphate, or a mixture of two or more thereof. In certain preferred embodiments, the treatment compositions comprise a silicone oil component that comprises, consists essentially of, or consists of dimethicone, amodimethicone, or a mixture thereof.

[0098] As further examples, the silicone oil may be selected from polydimethylsiloxanes (PDMS), polydimethylsiloxanes comprising alkyl or alkoxy groups which are pendant and / or at the end of the silicone chain, which groups each contain from 2 to 24 carbon atoms, or phenylsilicones, such as phenyltrimethicones, phenyldimethicones, phenyl(trimethylsiloxy)diphenylsiloxanes, diphenyldimethicones, diphenyl(methyl-diphenyl)trisiloxanes or (2-phenylethyl)trimethyl-siloxysilicates.

[0099] In some embodiments, the treatment compositions include at least one fatty compound selected from fatty alcohols. In some embodiments, "fatty alcohol" refers to any C5 or higher carbon chain alcohol, such as, for example, C8 or higher, C10 or higher, or C12 or higher, such as 6 to 30 carbon atoms or 8 to 30 carbon atoms. The fatty alcohols may be alkoxylated or unalkoxylated, saturated or unsaturated, and linear or branched.

[0100] For example, the fatty alcohols may be selected from arachidyl alcohol, behenyl alcohol, caprylic alcohol, cetearyl alcohol, cetyl alcohol, coconut alcohol, decyl alcohol, hydrogenated tallow alcohol, jojoba alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol, palm alcohol, palm kernel alcohol, stearyl alcohol, tallow alcohol, tridecyl alcohol, or combinations of two or more thereof. In certain preferred embodiments, the treatment compositions comprise a fatty alcohol component that comprises, consists essentially of, or consists of cetyl alcohol, stearyl alcohol, cetearyl alcohol, or mixtures thereof.

[0101] Useful and non-limiting fatty acids may be straight or branched chain acids and / or may be saturated or unsaturated. Non-limiting examples of fatty acids include dibasic, tribasic, and other multiple acids as well as salts of these fatty acids. For example, the fatty acid may optionally include or be selected from lauric acid, palmitic acid, stearic acid, behenic acid, arichidonic acid, oleic acid, isostearic acid, sebacic acid, or combinations thereof.

[0102] In some embodiments, fatty acid esters or fatty alcohol esters may be selected. For example, esters of C1-C26, saturated or unsaturated, linear or branched, mono- or poly-aliphatic acids and mono- or poly-alcohols C1-C26 aliphatic, saturated or unsaturated, linear or branched, the total carbon number of the esters being more particularly greater than or equal to 10, may be used. In other embodiments, esters of C4-C22 dicarboxylic or tricarboxylic acids and C1-C22 alcohols and esters of mono-, di- or tri-carboxylic acids and C2-C26 di-, tri-, tetra- or penta-hydroxyalcohols may also be used. By way of non-limiting examples, isostearyl lactate, lauryl lactate, linoleyl lactate, oleyl lactate, (iso)stearyl octanoate, isocetyl octanoate, octyl octanoate, cetyl octanoate, decyl oleate, isocetyl isostearate, isocetyl laurate, isocetyl stearate, isodecyl octanoate, isodecyl oleate, isononyl isononanoate, isostearyl palmitate, methyl acetylricinoleate, myristyl stearate, octyl isononanoate, 2-ethylhexyl isononanoate,octyl palmitate, octyl pelargonate, octyl stearate, octyldodecyl erucate, oleyl erucate, ethyl and isopropyl palmitates, 2-ethylhexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl, myristyl or stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate, dioctyl malate, hexyl laurate, 2-hexyldecyl laurate, diethyl sebacate, diisopropyl sebacate, adipate diisopropyl, di-n-propyl adipate, dioctyl adipate, diisostearyl adipate, dioctyl maleate, glyceryl undecylenate, octyldodecyl stearoylstearate, pentaerythrityl monoricinoleate, pentaerythrityl tetraisononanoate, pentaerythrityl tetrapelargonate, pentaerythrityl tetraisostearate, pentaerythrityl tetraoctanoate, propylene glycol dicaprylate,propylene glycol dicaprate, tridecyl erucate, triisopropyl citrate, triisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, propylene glycol dioctanoate, neopentyl glycol diheptanoate, diethylene glycol diisononanoate, and / or polyethylene glycol distearates may be selected. In a preferred embodiment, the composition comprises at least one fatty acid ester and / or fatty alcohol ester, for example, pentaerythrityl tetraisostearate.

[0103] In some embodiments, the treatment compositions comprise at least one wax. Non-limiting examples of waxes that may be used include beeswax, hydrogenated olive alkyl esters, carnauba wax, candelilla wax, ouricoury wax, Japan wax, cork fiber wax or sugarcane wax, rice wax, rice bran wax, montan wax, paraffin wax, lignite wax or microcrystalline wax, ceresin or ozokerite, hydrogenated palm kernel glycerides / palm glycerides, palm butter, sumac wax, citrus aurantium dulcis (orange) peel wax, Theobroma grandiflorum, Helianthus annuus (sunflower) seed wax, siliconyl candellila wax, China wax, cetyl palmitate, lanolin, shellac, spermaceti, cetyl esters, hydrogenated castor wax; triglyceride esters such as tribehenin (glyceryl tribehenate); synthetic waxes such as hydrocarbon type and polyethylene waxes obtained by the polymerization or copolymerization of ethylene, polypropylene waxes, or mixtures of two or more of any of these waxes. In certain preferred embodiments, the treatment compositions comprise a wax component that comprises, consists essentially of, or consists of cetyl esters.

[0104] In some embodiments, the treatment composition comprises one or more fatty compounds selected from oils of animal, vegetable, or mineral origin (e.g., lanolin, squalene, fish oil, perhydrosqualene, mink oil, turtle oil, soybean oil, grapeseed oil, sesame oil, corn oil, rapeseed oil, sunflower oil, cottonseed oil, avocado oil, olive oil, castor oil, jojoba oil, peanut oil, sweet almond oil, palm oil, cucumber oil, hazelnut oil, apricot kernel oil, wheat germ oil, calophyllum oil, macadamia oil, coconut oil, cereal germ oil, candlenut oil, thistle oil, candelilla oil, safflower oil, or shea butter), linear or branched hydrocarbons (e.g., polybutene, polyisobutene hydrogenated, polyisoprene, polydecenes such as hydrogenated polydecene, or also linear alkanes,branched and / or cyclic which are optionally volatile such as, for example, isohexadecane, isododecane, isodecane or isohexadecane), mono- and / or poly-esters of fatty acids and / or fatty alcohols (for example, mono- and poly-esters of hydroxy acids and fatty alcohols, esters of benzoic acid and fatty alcohols, polyol polyesters, C5-C9 dipentaerythrityl esters, trimethylolpropane polyesters, propylene glycol polyesters, or hydrogenated castor oil polyesters), perfluorinated and / or organofluorinated oils, fluorosilicone oils, or mixtures of two or more thereof. Non-limiting examples of fatty acids that may be used include optionally branched and / or unsaturated fatty acids such as myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, isostearic acid, or mixtures of two or more thereof.

[0105] If present, the total amount of fatty compounds in the treatment composition may range from about 0.1% to about 20%, such as from about 1% to about 20%, from about 2% to about 15%, from about 3% to about 12%, or from about 5% to about 10% by weight, based on the total weight of the composition. In certain preferred embodiments, the treatment compositions comprise at least one fatty compound selected from silicone oils, fatty alcohols, waxes or combinations thereof, wherein the total amount of fatty compounds in the composition ranges from about 1% to about 20%, preferably from about 2% to about 15%, more preferably from about 3% to about 12%, and most preferably from about 5% to about 10% by weight, based on the total weight of the composition. Thickening agents

[0106] The treatment compositions that can be used in the methods according to the disclosure optionally comprise at least one thickening agent.Useful thickening agents include, but are not limited to, semi-synthetic polymers, such as semi-synthetic cellulose derivatives, synthetic polymers, such as carbomers, poloxamers, and acrylate / beheneth-25 methacrylate copolymers, acrylate copolymers, polyethyleneimines (e.g., PEL10), natural polymers, such as acacia, tragacanth, alginates (e.g., sodium alginate), carrageenan, vegetable gums, such as xanthan gum, guar gum, petroleum jelly, waxes, related particulate colloids, such as bentonite, colloidal silicon dioxide, and microcrystalline cellulose, celluloses such as hydroethylcellulose and hydroxypropylcellulose, and guars such as hydroxypropyl guar.

[0107] In some embodiments, the thickening agent may be selected from associative thickening polymers, such as anionic associative polymers, amphoteric associative polymers, cationic associative polymers, or nonionic associative polymers. A non-limiting example of an amphoteric associative polymer is acrylates / beheneth-25 methacrylate copolymer, and non-limiting examples of anionic associative polymers include acrylates copolymer and acrylates-4 crosslinked polymer.

[0108] If present, the total amount of thickening agents may range from about 0.01% to about 8%, such as from about 0.05% to about 5%, from about 0.1% to about 4%, from about 0.2% to about 3%, or from about 0.3% to about 2% by weight, based on the total weight of the composition. Direct dyes

[0109] Optionally, the hair treatment compositions according to the disclosure comprise one or more direct dyes. Direct dyes, which are different from oxidation dyes, diffuse superficially on the hair fibers.

[0110] Direct dyes that may be selected include natural and synthetic direct dyes, which may be cationic, anionic, or non-ionic. Useful examples of direct dyes include azo direct dyes, (poly)methine dyes such as cyanines, hemicyanines, and styryls, carbonyl dyes, azine dyes, nitro(hetero)aryl dyes, tri(hetero)arylmethane dyes, porphyrin dyes, phthalocyanine dyes, xanthene direct dyes, triarylmethane dyes, natural direct dyes, and combinations of two or more thereof. In some embodiments, the direct dyes are selected from those that include at least one halogenated aromatic ring.

[0111] In some embodiments, the direct dyes are selected from anionic direct dyes. Anionic direct dyes are also referred to as "acid" direct dyes due to their affinity for alkaline substances. The anionic direct dyes may be selected from acid nitrate direct dyes, acid azo dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, indigoids, and natural acid dyes, or combinations of two or more thereof.

[0112] Des exemples non limitatifs de teintures anioniques incluent Acid Red 1, Acid Red 4, Acid Red 13, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 28, Acid Red 32, Acid Red 33, Acid Red 35, Acid Red 37, Acid Red 40, Acid Red 41, Acid Red 42, Acid Red 44, Pigment red 57, Acid Red 68, Acid Red 73, Acid Red 135, Acid Red 138, Acid Red 184, Food Red 1, Food Red 13, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Orange 19, Acid Orange 20, Acid Orange 24, Yellow 6, Acid Yellow 9, Acid Yellow 36, Acid Yellow 199, Food Yellow 3, Acid Violet 7, Acid Violet 14, Acid Blue 113, Acid Blue 117, Acid Black 1, Acid Brown 4, Acid Brown 20, Acid Black 26, Acid Black 52, Food Black 1, Food Black 2, Food yellow 3 ou sunset yellow, Acid Red 111, Acid Red 134, Acid yellow 38, ou des combinaisons de deux ou plus de celles-ci.A titre d'exemples supplémentaires, des teintures anioniques azoïques telles que Acid Red 195, Acid Yellow 23, Acid Yellow 27, Acid Yellow 76, et Acid Yellow 17 ; les teintures d'anthraquinone telles que Acid Blue 25, Acid Blue 43, Acid Blue 62, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Acid Violet 43, Mordant Red 3, Purple EXT No. 2, et Acid Black 48 ; les teintures d'anthraquinone telles que Acid Blue 25, Acid Blue 43, Acid Blue 62, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Acid Violet 43, Mordant Red 3, Purple EXT No.2, and Acid Black 48; triarylmethane dyes such as Acid Blue 1, Acid Blue 3, Acid Blue 7, Acid Blue 9, Acid Violet 49, Acid green 3, Acid green 5, and Acid Green 50; xanthene-derived dyes such as Acid Yellow 73, Acid Red 51, Acid Red 52, Acid Red 87, Acid Red 92, Acid Red 95, and Acid Violet 9; indole-derived dyes such as Acid Blue 74; and quinoline-derived dyes such as Acid Yellow 2, Acid Yellow . 3, and Acid Yellow 5, or combinations of two or more of these, may be chosen.

[0113] Non-limiting examples of cationic direct dyes, also referred to as "basic" direct dyes, include Basic Red 51, Basic Yellow 87, Basic Orange 31, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14, or combinations of two or more thereof.

[0114] Among the natural direct dyes, mention may be made, without limitation, of lawsone, juglone, alizarin, purpurin, carminic acid, kermesic acid, purpurogallin, protocatechaldehyde, indigo, isatin, curcumin, spinulosin, apigenidin, orceins, or combinations of two or more of these. Extracts or decoctions containing these natural dyes and, in particular, poultices or extracts based on henna may also be used.

[0115] According to certain embodiments, the direct ionic dye(s) is (are) chosen from blue or violet dyes such as Acid Violet 7, Acid Violet 14, Acid Blue 113, Acid Blue 117, Acid Blue 25, Acid Blue 43, Acid Blue 62, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Violet 42, Acid Violet 43 (also called EXT violet No. 2), Acid Blue 1, Acid Blue 3, Acid Blue 7, Acid Blue 9, Acid Violet 49, Acid Violet 9, Acid Blue 74, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14, or combinations of two or more thereof, preferably Ext. Violet 2, Acid Blue 62, Acid Blue 9 and Basic Violet 2, more preferably Ext. Violet 2, Acid Blue 62, Acid Blue 9, or combinations of two or more thereof.

[0116] If present, the total amount of direct dyes may range from about 0.001% to about 10%, such as from about 0.001% to about 5%, from about 0.001% to about 3%, from about 0.001% to about 2%, from about 0.001% to about 1%, from about 0.005% to about 5%, from about 0.005% to about 3%, from about 0.005% to about 2%, from about 0.005% to about 1%, from about 0.01% to about 5%, from about 0.01% to about 3%, from about 0.01% to about 2%, or from about 0.01% to about 1% by weight, based on the total weight of the composition. Auxiliary components

[0117] The treatment compositions that may be used in the methods according to the disclosure may optionally include one or more auxiliary components. Non-limiting examples include preservatives, fragrances, pH adjusters, salts, antioxidants, vitamins, vitamin derivatives, ceramides, botanical extracts, proteins, protein hydrolysates, protein isolates, hydrotropes, pearlescent agents, buffers, sequestering agents, and the like.

[0118] The total amount of auxiliary components, if present, is typically from about 0.01% to about 10%, based on the total weight of the treatment composition. For example, in some embodiments, the individual amounts of each component or the total amount of components may range from about 0.1% to about 10%, from about 0.1% to about 8%, 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 1% to about 10%, from about 1% to about 8%, from about 1% to about 5%, from about 1% to about 4%, from about 1% to about 3%, or from about 1% to about 2% by weight, based on the total weight of the treatment composition.

[0119] The treatment compositions that may be used in the methods of the disclosure typically have a pH of less than or equal to about 7, such as less than or equal to about 6, less than or equal to about 5, less than or equal to about 4.5, or less than or equal to about 4. For example, the treatment compositions may have a pH ranging from about 1 to about 7, such as from about 2 to about 6, from about 2.5 to about 5.5, from about 2.5 to about 5, from about 2.5 to about 4.5, or from about 3 to about 4. In some embodiments, the pH of the composition may be, for example, about 3, about 3.25, about 3.5, about 3.75, or about 4, including all ranges and subranges therein.

[0120] The treatment compositions may be in any suitable form. For example, suitable treatment compositions may be in the form of a liquid, a gel, a gel-cream, a high, medium or low density cream, a serum, a lotion, etc. II. Bleaching composition

[0121] Compositions and methods for lightening or bleaching hair are well known. It is contemplated that the treatment compositions described herein may be used with any bleaching compositions and methods. Typically, a bleaching composition is prepared at or about the time of use by mixing a bleaching base composition with an oxidizing composition, the resulting mixture (the bleaching composition) being applied to the hair in the desired manner (e.g., to achieve all-over lightening of the hair or to achieve highlights), allowed to act for a period of time necessary to lighten the hair color to the desired degree, which period may, for example, range from about 10 minutes to about one hour, and then the bleaching composition is rinsed from the hair.

[0122] Although it is not intended to limit the bleaching base compositions that may be used in the methods according to the disclosure, the bleaching base compositions Typical bleaching base compositions include one or more persulfate compounds, one or more silicate compounds, one or more oxidizing agents, and one or more alkalizing agents. Conventional bleaching base compositions may also include additional components, for example, oils, thickeners, solvents, or the like. In various embodiments, the bleaching base compositions that may be used may be in the form of a solid, a powder (powdery), a gel, a paste, etc. In some typical embodiments, the bleaching base composition is powdery and includes less than 1%, less than 0.5%, or less than 0.1% water.

[0123] For example, persulfate compounds that may be present in a bleaching base composition include potassium persulfate, ammonium persulfate, sodium persulfate, or mixtures thereof. The persulfate compounds are typically present in an amount of at least about 10%, such as at least about 20%, at least about 30%, at least about 40%, or at least about 50%, for example, about 20% to about 70%, about 30% to about 65%, about 45% to about 65%, about 40% to about 60%, about 50% to about 60%, or about 50% to about 55% by weight, based on the total weight of the bleaching base composition.

[0124] Silicates that may be present in the bleaching base compositions include lithium, sodium, and potassium silicates, metasilicates, and / or disilicates, such as aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate, barium silicate, strontium silicate, potassium silicate, potassium metasilicate, sodium silicate, sodium metasilicate, or a mixture thereof.Typically, the total amount of silicates ranges from about 1% to about 40%, such as from about 1% to about 35%, from about 1% to about 30%, from about 1% to about 25%, from about 1% to about 20%, from about 5% to about 40%, from about 5% to about 35%, from about 5% to about 30%, from about 5% to about 25%, from about 5% to about 20%, from about 10% to about 40%, from about 10% to about 35%, from about 10% to about 30%, from about 10% to about 25%, from about 10% to about 20%, from about 15% to about 40%, from about 15% to about 35%, from about 15% to about 30%, from about 15% to about 25%, or from about 15% to about 20% by weight, based on the total weight of the bleaching base composition.

[0125] In some cases, the bleaching base compositions optionally include one or more oxidizing agents in addition to the persulfate compounds. For example, the one or more additional oxidizing agents may be selected from perborates, percarbonates, their salts, or mixtures thereof. In some cases, the bleaching base compositions include one or more of alkali metal bromates, ferricyanides, redox enzymes such as laccases, peroxidases, or 2-electron oxidoreductases, such as uricase. If present, the total amount of additional oxidizing agents is typically from about 5% to about 45%, such as from about 5% to about 40%, from about 5% to about 35%, from about 5% to about 30%, from about 5% to about 25%, from about 5% to about 20%, from about 5% to about 15%, or from about 5% to about 10% by weight, based on the total weight of the bleaching base composition.

[0126] The hair bleaching base compositions may also include one or more alkaline agents other than silicate compounds. For example, alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine, organic amines such as 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol, and guanidine, salts of the aforementioned compounds, or combinations of two or more thereof may be used. In other cases, additional alkaline agents may include inorganic alkaline agents such as sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, magnesium carbonate hydroxide, barium hydroxide, sodium phosphate, potassium phosphate, ammonium carbonate, sodium carbonate, potassium carbonate, or magnesium carbonate.If present, the total amount of additional alkaline agents typically ranges from about 0.1% to about 20%, such as from about 0.1% to about 15%, from about 0.1% to about 13%, from about 0.1% to about 11%, from about 1% to about 15%, from about 1% to about 13%, from about 1% to about 11%, from about 3% to about 15%, from about 3% to about 13%, from about 3% to about 11%, from about 5% to about 15%, from about 5% to about 13%, or from about 5% to about 11% by weight, based on the total weight of the bleaching base composition.

[0127] In some cases, the bleaching base compositions may include one or more thickening agents, such as, for example, carboxylic acid / carboxylate copolymers, hydrophobically modified crosslinked copolymers of alkyl carboxylic acid and carboxylate vinyl polymers, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, polyvinylpyrrolidone, polyvinyl alcohol, guar gum, hydroxypropyl guar gum, xanthan gum, gum arabic, tragacanth, locust bean gum, karaya gum, carrageenan, pectin, agar, starch, seaweed colloids, polymers based starch, a methylhydroxypropyl starch, alginic acid-based polymers, propylene glycol esters, polyethyleneimine, bentonite, magnesium aluminum silicate, laponite, hectonite, anhydrous silicic acid, or combinations of two or more of these. If present, the total amount of thickening agents may vary, but generally ranges from about 0.1% to about 10%, such as from about 0.1% to about 8%, from about 0.1% to about 6%, from about 0.1% to about 4%, from about 0.5% to about 10%, from about 0.5% to about 8%, from about 0.5% to about 6%, from about 0.5% to about 12%, from about 0.5% to about 10%, from about 0.5% to about 8%, from about 0.5% to about 6%, from about 0.5% to about 4%, from about 1% to about 10%, from about 1% to about 8%, from about 1% to about 6%, from about 1% to about 4%, or from about 1% to about 3% in weight, relative to the total weight of the bleaching base composition.

[0128] In some cases, the bleaching base compositions include one or more oils. The oils may be oils of animal, vegetable or mineral origin, linear or branched hydrocarbons, optionally branched and / or unsaturated fatty acids, optionally branched and / or unsaturated fatty alcohols, mono- and / or polyesters of fatty acids and / or fatty alcohols, perfluorinated and / or organofluorinated oils, volatile or non-volatile silicone oils, fluorosilicone oils, or combinations of two or more thereof. For example, liquid paraffins and their derivatives, petroleum jelly, mineral oils, polybutene, hydrogenated polyisobutene, polyisoprene, polydecenes such as hydrogenated polydecene, or linear, branched and / or cyclic alkanes which are optionally volatile, such as, for example, isohexadecane, isododecane, isodecane or isohexadecane, may be used.If present, the total amount of oils is typically less than about 5%, such as 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%, or from about 0.1% to about 1% by weight, based on the total weight of the bleaching base composition.

[0129] Typically, the bleaching base compositions comprise one or more auxiliary components such as, for example, preservatives, cationic conditioning compounds including cationic conditioning polymers, rheology modifying agents, chelating agents, fatty substances, perfumes, colorants, fillers, amino acids, surfactants (cationic, anionic, non-ionic and / or amphoteric), moisture absorbers, anti-powder agents, ceramides, pH correcting agents, etc.

[0130] Before applying the bleaching base composition to the hair, it is generally mixed with an oxidizing composition comprising at least one oxidizing agent and a suitable cosmetic carrier, for example water. Typically, the oxidizing compositions may comprise additional components such as, for example, rheology modifying agents, chelators, fatty substances, ceramides, pH correcting agents, preservatives, perfumes, surfactants, etc.

[0131] For example, the oxidizing agent may be hydrogen peroxide, urea peroxide, alkali metal bromates, alkali metal ferricyanides, or persalts such as perborates and persulfates. The total amount of oxidizing agent and carrier may vary depending on the desired strength of the oxidizing composition. For example, the total amount of oxidizing agent may be from about 1% to about 40%, such as from about 1% to about 30%, 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 from about 9% to about 12% by weight, based on the total weight of the oxidizing composition.In some cases, the oxidizing composition is aqueous and the oxidizing agent comprises, consists essentially of, or consists of hydrogen peroxide. For example, the hydrogen peroxide may be present in an amount ranging from about 5% to about 20%, such as from about 7% to about 15%, from about 8% to about 13%, from about 8% to about 10%, from about 9% to about 13%, or from about 10% to about 12%, for example, from about 7%, from about 8%, from about 9%, from about 10%, from about 11%, from about 12%, from about 13%, from about 14%, or from about 15% by weight, based on the total weight of the oxidizing composition. The oxidizing composition may be, for example, 20V, 30V, or 40V hydrogen peroxide compositions.

[0132] The hair bleaching base composition is typically mixed with an oxidizing composition at a ratio of from about 1:5 to about 5:1, such as from about 1:4 to about 4:1, about 1:3 to about 3:1, or about 1:2 to about 2:1, or is, for example, 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, generally at or about the time of use, to form the bleaching composition. The mixture is generally alkaline, with a pH greater than about 8, such as greater than about 9, or greater than about 10, for example from about 9 to about 12, or from about 10 to about 12.Typically, once the bleaching composition is prepared, it is applied to hair which may be damp, wet or dry, optionally covered (e.g., with a film), optionally heated (e.g., with a hair dryer or a . hair dryer hood) and, after sufficient processing time to achieve the desired level of hair lightening, the hair is rinsed.

[0133] Optionally, the bleaching compositions for use in the methods according to the disclosure comprise at least one direct dye, such as those described above. In some embodiments, the bleaching composition comprises at least one direct dye having at least one halogenated aromatic ring, for example, one or more xanthene dyes, triarylmethane dyes, azo dyes, etc. Non-limiting examples of xanthene dyes comprising at least one halogenated aromatic ring include D&C Red 28, D&C Red 27, Eosin Y, Eosin B, Erythrosin B, and Rose Bengal, and non-limiting examples of triarylmethane dyes include tetrabromophenol blue, tetrabromosulfonephthalein, bromosulfophthalein, bromocresol green, and bromothymol blue.If present, the total amount of direct dyes may range from about 0.001% to about 10%, such as from about 0.001% to about 5%, from about 0.001% to about 3%, from about 0.001% to about 2%, from about 0.001% to about 1%, from about 0.005% to about 5%, from about 0.005% to about 3%, from about 0.005% to about 2%, from about 0.005% to about 1%, from about 0.01% to about 5%, from about 0.01% to about 3%, from about 0.01% to about 2%, or from about 0.01% to about 1% by weight, based on the total weight of the bleaching composition.

[0134] Although the aforementioned basic hair bleaching compositions, oxidative compositions, and hair bleaching processes are disclosed for use in the methods according to the disclosure, those skilled in the art will understand that variations of hair bleaching compositions and processes may also be used. Thus, it is not intended that the aforementioned bleaching compositions and processes limit the methods according to the disclosure.

[0135] III. METHODS FOR TREATING KERATIN FIBERS

[0136] The disclosure relates to methods of treating keratin fibers with a treatment composition according to the disclosure in connection with a hair lightening process. The methods include applying a treatment composition to the hair, optionally leaving the composition on the hair for a period of time (“treatment period,” “rest period,” or “lay-in period”), and optionally rinsing the composition from the hair. The treatment composition may be applied to the hair before and / or after applying a bleaching composition to the hair, or may be applied to the hair concurrently with a bleaching composition. The methods may also include providing color to the hair with a direct dye, for example, if a treatment composition hair dye and / or a bleaching composition used in the processes include direct dyes.

[0137] Although not necessary, the methods according to the disclosure may also include a step of heating the hair to which the treatment composition has been applied, for example during the resting period while the treatment composition is on the hair. For example, a hair dryer, a hair dryer hood, etc., may be used.

[0138] The period of time the treatment composition is left on the hair may be a suitable time to allow the active agents to provide benefits to the keratin fibers, such as about 30 seconds, about 1 minute, about 2 minutes, about 5 minutes, about 10 minutes, about 15 minutes, about 20 minutes, about 30 minutes, about 45 minutes, about 1 hour, about 2 hours, etc., or may vary by a period of time using any of the foregoing values ​​as upper and lower limits.By way of non-limiting example, the exposure period may range from about 30 seconds to about 60 minutes, from about 30 seconds to about 45 minutes, from about 30 seconds to about 30 minutes, from about 30 seconds to about 20 minutes, from about 30 seconds to about 15 minutes, from about 30 seconds to about 10 minutes, from about 30 seconds to about 5 minutes, 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 2 minutes to about 60 minutes. minutes, from about 2 minutes to about 45 minutes, from about 2 minutes to about 30 minutes, from about 2 minutes to about 20 minutes, from about 2 minutes to about 15 minutes, from about 2 minutes to about 10 minutes, from about 2 minutes to about 5 minutes, etc.

[0139] The period of time the bleaching composition is left on the hair may be a suitable time to achieve the desired level of lightening, which may range from about 1 minute to about 90 minutes, such as from about 5 minutes to about 60 minutes, from about 10 minutes to about 45 minutes, or from about 15 minutes to about 25 minutes.

[0140] In exemplary embodiments, a treatment composition according to the disclosure may be applied to the hair before, during, and / or after applying a bleaching composition to the hair, with or without an intervening rinse. For example, such a method may include applying a treatment composition according to the disclosure to wet, damp, or dry hair, leaving the composition on the hair for a suitable processing time, optionally rinsing the hair, and then substantially immediately thereafter (i.e., i.e., as part of the same hair lightening process), with or without an intermediate rinsing of the hair, applying to the hair a bleaching composition. Another exemplary method may include applying a bleaching composition to the hair, and substantially immediately thereafter (i.e., as part of the same hair lightening process), with or without an intermediate rinsing of the hair, applying to the hair a treatment composition according to the disclosure. In either of the preceding exemplary embodiments, the treatment composition and the bleaching composition may optionally be layered one on top of the other on the hair (leave-in), or may optionally be applied to the hair in alternating layers (rinsing) during the hair lightening process.As a further exemplary method, a treatment composition according to the disclosure may be added or mixed with a hair lightening composition, e.g., the bleaching composition, the bleaching base composition, and / or the oxidizing composition, e.g., at or about the time of use. In yet another exemplary method, a treatment composition and a bleaching composition may be applied simultaneously to the hair, e.g., by means of a dual-chamber applicator that is configured to dispense two compositions at the same time. Thus, it is contemplated that the treatment compositions according to the disclosure may be incorporated into a hair lightening process, thereby reducing, minimizing, or preventing damage to the hair that might otherwise result from such harsh chemical treatments.

[0141] As a non-limiting example of hair lightening methods according to the disclosure, a treatment composition as described herein may be applied to wet, damp, or dry hair and then allowed to remain on for a setting period as described herein, for example, from about one minute to about two hours, such as from about five minutes to about one hour, optionally with heating. The hair may then be rinsed, and then a hair bleaching composition is applied according to conventional hair bleaching routines.As a further non-limiting example of methods for lightening hair according to the disclosure, a treatment composition as described herein may be applied to wet, damp, or dry hair and then allowed to remain for a treatment period as described herein, for example, from about one minute to about two hours, such as from about five minutes to about one hour, optionally with heating. Without rinsing the treatment composition from the hair, a bleaching composition may be applied to the hair. then the hair lightening process is carried out according to classic hair bleaching routines.

[0142] As another non-limiting example of hair lightening methods according to the disclosure, a hair bleaching composition may be applied to the hair to lighten the hair according to conventional hair bleaching routines. The hair may then be rinsed, a treatment composition as described herein is applied to damp, wet, or dry hair and then allowed to remain for a development period as described herein, for example, from about one minute to about two hours, such as from about five minutes to about one hour, optionally with heating. The hair may then be rinsed. As another non-limiting example of hair lightening methods according to the disclosure, a hair bleaching composition may be applied to the hair to lighten the hair according to conventional hair bleaching routines.Without rinsing the hair bleaching composition, a treatment composition as described herein may be applied to wet, damp, or dry hair and then allowed to remain for a processing period as described herein, for example, from about one minute to about two hours, such as from about five minutes to about one hour, optionally with heating. The hair may then be rinsed.

[0143] Yet another exemplary method may include applying a bleaching composition to the hair, rinsing the hair, and substantially immediately thereafter (i.e., as part of the same hair lightening process), applying to the hair a treatment composition according to the disclosure, the treatment composition comprising one or more direct dyes. Yet another further exemplary method may include applying a bleaching composition to the hair, and substantially immediately thereafter (i.e., as part of the same hair lightening process), with or without intervening rinsing of the hair, applying to the hair a treatment composition according to the disclosure, the bleaching composition comprising one or more direct dyes.

[0144] Surprisingly, hair that has been treated with treatment compositions and methods according to the disclosure before, during and / or after the bleaching process exhibits less damage than lightened hair not treated with treatment compositions and methods according to the disclosure before, during and / or after the bleaching process. Hair lightened using treatment compositions and methods according to the disclosure may exhibit lower elasticity and / or higher tensile strength than hair lightened in the same manner but not treated according to the disclosure. Thus, methods Additional methods according to the disclosure include methods of reducing or minimizing damage to hair in a hair lightening or bleaching process, methods of preventing damage to hair with respect to a hair lightening or bleaching process, and methods of improving the elasticity and / or tensile strength of hair in a hair lightening or bleaching process.

[0145] Having described in detail the numerous embodiments of the present invention, it will be 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 examples of the present disclosure, while illustrating numerous embodiments of the disclosure, are provided by way of non-limiting examples and therefore should not be construed as limiting the various aspects thus illustrated. It should be understood that all definitions are provided herein only for the purposes of this disclosure.

[0146] In the present application, "bleaching" hair and "lightening" hair are used interchangeably to refer to compositions and methods for lightening hair color with typical hair bleaching compositions comprising oxidizing and / or alkalizing compounds.

[0147] As used herein, treating hair with a treatment composition or applying a treatment composition to hair that is "in connection with a hair lightening process," "as part of the same hair lightening process," and variations thereof, are intended to convey that the treatment composition is applied to the hair in close proximity to the time the hair is subjected to a hair lightening process, such that a person skilled in the art would consider the processes of treating hair with a treatment composition as described herein and lightening hair to be a single process.For example, the treatment composition may be applied to the hair less than 24 hours, such as less than 12 hours, less than 6 hours, less than 4 hours, less than 3 hours, less than 2 hours, less than 1 hour, less than 45 minutes, less than 30 minutes, or less than 15 minutes before and / or after applying a hair lightening composition to the hair.

[0148] The expression "and / or" should be understood to include both the conjunctive and the disjunctive. For example, "amino acids and / or their salts" means "amino acids and their salts" as well as "amino acids or their salts", and expressly covers either.

[0149] As used herein, the term "salts" throughout the disclosure may include salts having a counterion such as an alkali metal, metal, or alkyl metal counterion. alkaline earth or ammonium. This list of counterions, however, is not exhaustive. Salts also include a dissociated form of a compound, for example in an aqueous solution.

[0150] All amounts stated herein are relative to the amount of active ingredient unless otherwise stated.

[0151] All percentages, parts and ratios herein are based on the total weight of the compositions of the present disclosure, unless otherwise indicated.

[0152] In the present application, the terms "keratin fibers" and "hair" are used interchangeably, without the intention of being limiting. Those skilled in the art will understand that keratin fibers include hair, such as hair growing on the scalp, which is frequently lightened or bleached in a cosmetic process to change the appearance of the hair.

[0153] As used herein, the term "applying a composition to the hair," and variations thereof, is intended to mean contacting the hair with at least one of the compositions described herein, in any manner. It may also mean contacting the hair in an effective amount.

[0154] The term "treating the hair" (and its grammatical variations) as used herein refers to applying the compositions described herein to the surface of the hair. The term "treating the hair" (and its grammatical variations) as used herein also refers to contacting the hair with the compositions described herein.

[0155] Unless otherwise defined for any specific embodiment, the term "substantially free" or "essentially free" as used herein means that there is less than about 5% by weight of a specific material added to a composition, based on the total weight of the composition. For example, compositions may include less than about 4%, less than about 3%, less than about 2%, less than about 1.5%, less than about 1%, less than about 0.5%, less than about 0.1%, less than about 0.01%, less than about 0.001%, or less than about 0.0001% of the specified material. A composition "free" of a component is intended to contain no amount of the specified component. EXAMPLES

[0156] The following examples are intended to be non-limiting and explanatory in nature only. In the Examples, unless otherwise indicated, the amounts are expressed as a percentage by weight (% by weight) of active ingredients, relative to the total weight of the composition. Example 1 - Treatment compositions

[0157] Compositions IA to IG, which may be used in the methods according to the disclosure, were prepared as shown in Table 1. The pH of each of the compositions IA to IG was about 3.5.

[0158] [Table 1]

[0159] [Tables 1] IA IB IC 1D 1E 1F IG Basic amino acid(s) 5.0 5.0 5.0 5.0 5.0 5.0 2.0 Glycine betaine 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Citric acid and / or lactic acid 6.1 6.1 6.1 6.1 6.1 6.1 4.1 Neutral amino acid(s) 0.5 Preservative(s) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Solvents (water and / or non-aqueous solvents) QS QS QS QS QS QS QS

[0160] The compositions contained a synergistic combination of components: carboxylic acids (citric acid and / or lactic acid), osmolytes (glycine betaine) and amino acids (arginine and / or serine).

[0161] Example 2 - Assessment of damage repair in bleaching processes

[0162] In order to evaluate the ability of the treatment compositions according to the disclosure to minimize, prevent or repair damage to hair associated with bleaching processes, the following studies were conducted. Example 2A#- Ultra-bleached hair

[0163] Eight strands (S1 to S8) of virgin Caucasian hair were bleached with a composition prepared by mixing a commercial bleaching powder with a commercial oxidizing composition (40V hydrogen peroxide) at a mixing ratio of 1:1.5 (bleaching powder:oxidizing composition) and treated at a temperature of about 55°C for about 45 minutes. The strands were rinsed, and then seven of the strands (S1 to S7) were subjected to the following treatment routines (strand S8 did not undergo any treatment after rinsing the bleaching composition from the hair).

[0164] The SI strand was cleaned with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, leaving it on the strand for a period of about one minute, then rinsing the strand until all the shampoo was removed. Immediately after, a commercially available conditioning composition was applied to the strand and distributed to ensure that the hair was fully coated, it was left to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. This treatment protocol was repeated daily for five days.

[0165] Strands S2 to S7 were each cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of about one minute, and then rinsing the strand until all of the shampoo was removed. Immediately thereafter, a commercially available conditioning composition was applied and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. Immediately thereafter, one of compositions 1A to 1F (Table 2A) was applied to the strand and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. This treatment protocol was repeated daily for five days.

[0166] [Table 2] TABLE 2A IA IB IC 1D 1E 1F Wick S2 S3 S4 S5 S6 S7

[0168] The integrity of the hair fibers in each of the strands S1 to S8 was studied after the first and fifth days. Elasticity was assessed to determine whether the hair fibers stretched, and if so, whether they returned to their original state (lower elasticity, i.e., healthy), whether the fibers stretched easily and remained stretched (higher elasticity, i.e., damaged), or whether the hair fibers broke during testing.

[0169] The evaluation was performed by stretching a standardized amount of wet hair fibers, with two experts independently evaluating each strand. The experts were trained to stretch the area of ​​the strand being evaluated by uniformly applying manual pulling force using their hands / fingers. The strand behavior was ranked by each expert according to a 6-level scale as follows, with the result reported for each strand being the average of the two:

[0170] 0 = Natural, healthy hair (no damage);

[0171] 1 = low elasticity (when stretched, hair fibers exhibit a slight elasticity, returning to their initial state after testing);

[0172] 2 = moderate elasticity (when stretched, hair fibers exhibit a elasticity, returning to their initial state after the test);

[0173] 3 = High elasticity (when stretched, hair fibers exhibit elasticity and some hair fibers do not return to their initial state after testing);

[0174] 4 = Very high elasticity (when stretched, hair fibers exhibit elasticity and most of the hair fibers do not return to their initial state after testing); and

[0175] 5 = Immediate breakage (when stretched, hair fibers exhibit a high elasticity and break during testing).

[0176] The results showed that the hair fibers of strands S2-S7, treated with one of the compositions 1A-1F, surprisingly exhibited lower elasticity than the fibers of strands SI or S8 both after day 1 ([Fig.lA]) and day 5 ([Fig.lB]). In other words, the hair of strands SI and S8 were damaged by the aggressive bleaching process, resulting in increased elasticity, while the damaged strands S2 to S7 were repaired through treatment with one of the compositions 1A to 1F. Example 2B# - Straightened and ultra-bleached hair

[0177] Eight strands (S9 to S16) of Caucasian hair that had previously been straightened using formaldehyde were bleached with a composition prepared by mixing a commercial bleaching powder with a commercial oxidizing composition (hydrogen peroxide 40V) at a mixing ratio of 1:1.5 (bleach powder:oxidizing composition) and treated at a temperature of about 55°C for about 45 minutes. The strands were rinsed, and then seven of the strands (S9 to S15) were subjected to the following treatment routines.

[0178] The S9 strand was cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of approximately one minute, and then rinsing the strand until all of the shampoo was removed. Immediately thereafter, a commercially available conditioning composition was applied to the strand and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of approximately five minutes, and then the strand was rinsed thoroughly. A leave-in conditioner and a leave-in hair straightener serum were applied to the hair. The treatment was repeated a second time. This treatment protocol was repeated daily for five days.

[0179]

[0180]

[0181]

[0182]

[0183]

[0184]

[0185]

[0186] Strands S10 to S15 were each cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to remain on the strand for a period of approximately one minute, and then rinsing the strand until all of the shampoo was removed. Immediately thereafter, one of the compositions IA to 1F (Table 2B) was applied to the strand and distributed to ensure that the hair was fully coated, allowed to remain for a resting period of approximately five minutes, and then the strand was rinsed thoroughly. Immediately thereafter, a commercially available conditioning composition was applied and distributed to ensure that the hair was fully coated, allowed to remain for a resting period of approximately five minutes, and then the strand was rinsed thoroughly.A leave-in conditioner and a leave-in hair straightener serum were applied to the hair. This treatment protocol was repeated daily. for five days. [Table 3] TABLE 2B IA IB IC 1D 1E 1F Wick S10 SU S12 S13 S14 S15 The integrity of the hair fibers of each of the strands S9 to S16 was investigated in the same manner as described in Example 2A. The results showed that the hair fibers of strands S10-S15, treated with one of the compositions 1A-1F, surprisingly exhibited lower elasticity than the fibers of strands S9 and S16 both after day 1 ([Fig.2A]) and day 5 ([Fig.2B]). Examples 2A and 2B therefore demonstrate that treating hair with compositions according to the disclosure in a bleaching process surprisingly prevents and repairs damage to hair fibers that would otherwise be caused by the bleaching compositions and processes, leaving the hair healthier and less elastic than without treatment. Example #3 - Treatment compositions Compositions 2A to 2E, which can be used in the methods according to the disclosure, were prepared as shown in Table 3. [Table 4] [Tables 3] 2A 2B 2C 2D 2E Basic amino acid(s) 5.0 5.0 5.0 5.0 5.0 Glycine betaine 2.5 2.5 2.5 2.5 2.5 Citric acid 6.1 6.1 6.1 6.1 6.1 Silicone oil(s) (dimethicone and / or amodimethicone) 3.3 3.3 3.3 3.3 1.0 Fatty alcohol(s) (stearyl alcohol and / or cetearyl alcohol) 4.5 4.5 6.0 5.0 6.0 Cetyl esters 1.0 Cationic surfactant(s) (cetrimonium chloride, behentrimonium chloride and / or stearamid opropyldimethylamine) 1.6 1.6 1.6 2.5 1.6 Cocamidopropyl betaine 1.1 1.1 1.1 0.2 Hydroxyethylcellulose 0.8 1.0 1.5 1.5 0.4 Auxiliary component(s) (color correctors) pH, preservatives, vitamins, extracts) <2 <2 <2 <2 <2 Solvents (water and non-aqueous solvents) QS QS QS QS QS Measured pH 3.7 3.7 3.7 3.7 4.0

[0187] The compositions contained a synergistic combination of components: carboxylic acids (citric acid), osmolytes (glycine betaine) and amino acids (arginine).

[0188] Example 4 - Assessment of damage repair in bleaching processes

[0189] In order to evaluate the ability of the treatment compositions according to the disclosure to minimize, prevent or repair damage to hair associated with bleaching processes, the following studies were conducted.

[0190] A comparative product, Cl, had the following list of ingredients on the packaging: Water (Aqua / Eau), Bis-Aminopropyl Diglycol Dimaleate, Propylene Glycol, Cetearyl Alcohol, Behentrimonium Methosulfate, Cetyl Alcohol, Phenoxyethanol, Glycerin, Hydroxyethyl Ethylcellulose, Stearamidopropyl Dimethylamine, Quaternium-91, Sodium Benzoate, Cetrimonium Methosulfate, Cetrimonium Chloride, Fragrance (Parfum), Tetrasodium EDTA, Polyquaternium-37, Benzyl Benzoate, Etidronic Acid, Ascorbic Acid, Phytantriol, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice, Panthenol, Simmondsia Chinensis (Jojoba) Seed Oil, Citric Acid, Potassium Sorbate. Composition Cl, which is described as a “pre-shampoo hair treatment that reduces breakage and split ends for visibly healthier hair,” is presented as part of a system that claims its ability to “reform broken disulfide bonds damaged by chemical treatments, heat, and styling.” The instructions for composition Cl are to use the product before using the shampoo (“Cl-S”) and conditioner (“Cl-C”) that are part of this system, both of which include bis-aminopropyldiglycol dimaleate as the listed active agent.

[0191] Example 4A - Ultra-bleached hair: Elasticity and resistance

[0192] Five strands (S 17 to S21) of virgin Caucasian hair were bleached with a composition prepared by mixing a commercial bleaching powder with a commercial oxidizing composition (hydrogen peroxide 40V) at a mixing ratio of 1:1.5 (bleach powder:oxidizing composition) and treated at a temperature of about 55°C for about 45 minutes. The strands were rinsed, and then four of the strands (S 17 to S20) were subjected to the following treatment routines (strand S21 did not undergo any treatment after rinsing the bleaching composition from the hair).

[0193] The S17 strand was cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of about one minute, and then rinsing the strand until all the shampoo was removed. Immediately thereafter, a commercially available conditioning composition was applied to the strand and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. This treatment protocol was repeated four more times.

[0194] Strands S18 and S19 were each cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of about one minute, and then rinsing the strand until all of the shampoo was removed. Immediately thereafter, a commercially available conditioning composition was applied and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. Immediately thereafter, one of compositions 2D (S 18) or 2B (S 19) was applied to the strand and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. This treatment protocol was repeated four more times.

[0195] Strand S20 was treated with composition C1 by applying the composition to the strand and distributing it so as to ensure that the hair was fully coated. Composition C1 was left on the hair for a resting period for about five minutes, then the strand was rinsed thoroughly. Immediately after, the strand was cleansed with Cl-S shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, letting it sit on the strand for about one minute, and then rinsing the strand until all the shampoo was removed. Immediately after, Cl-C conditioner was applied to the strand and distributed to ensure that the hair was fully coated, it was allowed to sit for about five minutes, and then the strand was rinsed thoroughly. This treatment protocol was repeated four more times.

[0196] After the five treatments of strands S17 to S20 were completed, the integrity of the hair fibers of each of the strands S17 to S21 was studied in the same manner as described in Example 2A. The results showed that the hair fibers of strands S18 and S19, treated respectively with compositions 2D and 2B after washing and conditioning the hair, exhibited lower elasticity than the fibers of strands S17 and S20-S21 ([Fig.3]).

[0197] Next, the strength was evaluated using a Dia-Stron fiber tensile testing instrument called MTT (Miniature Tensile Tester). The results showed that the hair in strands S18 and S19, treated with compositions 2D and 2B respectively, was surprisingly stronger than the hair in strands S17 or S20, meaning that a greater force was required to break the individual hair fibers in strands S18 and S19. [Fig.4A] shows the breaking stress (MPa) for a control strand (CTL), consisting of the same hair but not bleached, strand S17, which was bleached but without further treatment, and strands S18 and S19, treated with compositions 2D and 2B respectively, and strand S20, treated with the comparative compositions. As shown in [Fig.4A], the breaking stress of the control strand (CTL) was more than double that of strand S17, demonstrating the significant damage caused by the bleaching process. After five (5) treatments with composition 2D (strand S18), 2B (strand S19), or the comparative compositions (S20), the breaking stress of the treated strands increased compared to strand S17. Surprisingly, the increase in breaking stress for samples S18-S19 was considered statistically significant compared to that of sample S20, meaning that compositions 2D and 2B repaired the hair to a greater extent than the comparative compositions.

[0198] Example 4B - Straightened and ultra-bleached hair: Elasticity

[0199] Four strands (S22 to S25) of Caucasian hair that had been previously straightened using formaldehyde were bleached with a composition prepared by mixing a commercial bleaching powder with an oxidizing composition commercially available (40V hydrogen peroxide) at a mixing ratio of 1:1.5 (bleach powder:oxidizing composition) and treated at a temperature of approximately 55°C for approximately 45 minutes. The strands were rinsed and, for a five-week treatment period, all four strands were subjected to the following routine twice a week.

[0200] First, the strands were cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of about one minute, and then rinsing the strand until all the shampoo was removed. Immediately thereafter, a commercially available conditioning composition was applied to the strand and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. A leave-in conditioner and a leave-in hair straightener serum were applied to the hair.

[0201] Three of the strands (S22 to S24) were subjected to the following additional treatment routines once a week during the 5-week period.

[0202] The S22 strand was cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to remain on the strand for a period of approximately one minute, and then rinsing the strand until all of the shampoo was removed. A mask composition was applied to the hair and left on the hair, after which the hair was rinsed. Immediately thereafter, a commercially available conditioner composition was applied to the strand and distributed to ensure that the hair was fully coated, allowed to remain for a resting period of approximately five minutes, and then the strand was rinsed thoroughly. A leave-in conditioner and a leave-in hair straightener serum were applied to the hair.

[0203] The strand S23 was cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of about one minute, and then rinsing the strand until all the shampoo was removed. Immediately thereafter, composition 2C was applied to the strand and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed thoroughly. Immediately thereafter, a commercially available conditioning composition was applied and distributed to ensure that the hair was fully coated, allowed to sit for a resting period of about five minutes, and then the strand was rinsed Carefully. A leave-in conditioner and a leave-in hair straightener serum were applied to the hair.

[0204] The strand S24 was treated with the composition C1 by applying the composition to the strand and distributing it so as to ensure that the hair was fully coated. The composition C1 was left on the hair for a resting period of approximately five minutes, and then the strand was rinsed thoroughly. Immediately thereafter, the strand was cleansed with the shampoo C1-S by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to remain on the strand for a period of approximately one minute, and then rinsing the strand until all the shampoo was removed. Immediately thereafter, the conditioner C1-C was applied to the strand and distributed so as to ensure that the hair was fully coated, it was allowed to remain for a resting period of approximately five minutes, and then the strand was rinsed thoroughly.A leave-in conditioner and a leave-in hair straightener serum were applied to the hair.

[0205] After the five-week treatment period, the elasticity and strength of the hair fibers of each of the strands S22 to S25 were studied in the same manner as described in Example 2A. The results showed that the hair fibers of strand S23, treated with composition 2C, had lower elasticity than the fibers of any of the strands S22 or S24-S25. Similarly, the results of the MTT test showed that the hair of strand S23, treated with composition 2C, was stronger than the hair of any of the strands S22 or S24-S25.

[0206] Example 4C - Straightened and ultra-bleached hair: Resistance

[0207] Four strands (S26 to S29) of Caucasian hair that had been previously straightened using formaldehyde were bleached with a composition prepared by mixing a commercial bleaching powder with a commercial oxidizing composition (hydrogen peroxide 40V) at a mixing ratio of 1:1.5 (bleach powder:oxidizing composition) and treated at a temperature of about 55°C for about 45 minutes. The strands were rinsed and, for a treatment period of five weeks, all four strands were subjected to the following routine twice a week.

[0208] First, the strands were cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to sit on the strand for a period of about one minute, and then rinsing the strand until all the shampoo was removed. Immediately thereafter, a commercially available conditioning composition was applied to the strand and distributed to ensure that the hair was fully coated, and allowed to sit for a resting period of about five minutes. minutes, then the strand was rinsed thoroughly. A leave-in conditioner and a leave-in serum for hair straighteners were applied to the hair.

[0209] Three of the strands (S27 to S29) were subjected to the following additional treatment routines once a week during the 5-week period.

[0210] Strands S27 and S28 were cleansed with a commercially available shampoo by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to remain on the strand for a period of about one minute, and then rinsing the strand until all the shampoo was removed. One of compositions 2B (S28) or 2D (S27) was applied to the hair and left on the hair, after which the hair was rinsed. Immediately thereafter, a commercially available conditioning composition was applied to the strand and distributed to ensure that the hair was fully coated, allowed to remain for a resting period of about five minutes, and then the strand was rinsed thoroughly. A leave-in conditioner and a leave-in hair straightener serum were applied to the hair.

[0211] The strand S29 was treated with the composition Cl by applying the composition to the strand and distributing it so as to ensure that the hair was fully coated. The composition Cl was left on the hair for a resting period of approximately five minutes, and then the strand was rinsed thoroughly. Immediately thereafter, the strand was cleansed with the shampoo Cl-S by wetting the strand, applying the shampoo to the strand, lathering the shampoo, allowing it to remain on the strand for a period of approximately one minute, and then rinsing the strand until all the shampoo was removed. Immediately thereafter, the conditioner Cl-C was applied to the strand and distributed so as to ensure that the hair was fully coated, it was allowed to remain for a resting period of approximately five minutes, and then the strand was rinsed thoroughly.A leave-in conditioner and a leave-in hair straightener serum were applied to the hair.

[0212] Tests were carried out with MTT in the same manner as described in Example 4A. The results showed that the hair in strands S27 and S28, treated with compositions 2D and 2B respectively, was surprisingly stronger than the hair in strands S26 or S29, meaning that a greater force was required to break the individual hair fibers in strands S27 and S28. [Fig. 4B] shows the breaking stress (MPa) for a control strand (CTL), consisting of the same hair but not bleached, strand S26, which was bleached but without further treatment, and strands S27 and S28, treated with compositions 2D and 2B respectively, and strand S29, treated with the comparative compositions. Like [Fig. 4B], the breaking stress of the control strand (CTL) was about three times that of strand S26, showing the damage significant caused by the bleaching process. After five (5) treatments with composition 2B (strand S28), 2D (strand S27), the breaking stress of the treated strands was increased compared to strand S26, and the improvement was considered statistically significant. [Fig.4B] however shows that the breaking stress of the strand treated with the comparative composition (S29) did not show any improvement in breaking stress.

[0213] Examples 4A to 4C therefore demonstrate that treating hair with compositions according to the disclosure in a bleaching process surprisingly prevents and repairs damage to hair fibers that would otherwise be caused by bleaching compositions and processes, leaving hair healthier, stronger, and less elastic than without treatment. The damage repair was also surprisingly greater than that achieved with a commercial product that claims to do the same. Example #5 - Treatment compositions

[0214] Compositions 3A to 3D, which can be used in the methods according to the disclosure, were prepared as shown in Table 4.

[0215] [Table 5]

[0216] [Tables4] 3A 3B 3C 3D Basic amino acid(s) 5.50 5.50 3.80 3.80 Thickening agent(s) 0.30 0.90 0.90 Non-ionic surfactant(s) 0.30 1.50 0.50 0.50 Amphoteric surfactant(s) 0.30 Conditioning agent(s) 0.80 Cationic surfactant(s) 2.10 3.84 3.00 3.00 Glycine betaine 2.50 2.50 1.80 1.80 Citric acid 6.00 6.00 5.50 5.50 Wax(s) 0.50 0.50 Fatty alcohol(s) 6.30 6.30 Vegetable oil(s) 0.50 Fatty acid ester(s) 2.50 1.50 Additives (preservatives, perfume) <2 <2 <2 <2 Solvents (water and non-aqueous solvents) QS QS QS QS

[0217] Compositions 3A-3D, which contained a synergistic combination of components (carboxylic acids (citric acid), osmolytes (glycine betaine), and amino acids (arginine)), may be used in methods according to the disclosure, e.g., may be applied to the hair before and / or after applying a bleaching composition to the hair, may be mixed with a bleaching composition, or may be applied to the hair concurrently with a bleaching composition, and are expected to minimize, prevent, and / or repair damage to the hair that would otherwise be expected from a hair bleaching process. The compositions are also expected to improve the elasticity and strength of the treated hair fibers.

[0218] Example 6- Additional treatment compositions

[0219] The following compositions that can be used in the methods according to the disclosure can be prepared and should likewise minimize, prevent and / or repair damage to hair when used accordingly. The compositions should also improve the elasticity and strength of the treated hair fibers.

[0220] [Table 6]

[0221] [Tables5] 4A 4B 4C 4D 4E Arginine 2.0 9.8 2.5 Lysine 2.5 2.0 10 Valine betaine 2.0 4.5 2.0 1.0 4.0 Citric acid 3 2.0 9.8 Lactic acid 2.0 10 2 Serine 0.05 0.5 0.05 0.5 Fatty compound(s) 10 8.0 9.0 15 Cationic and / or amphoteric surfactant(s) 3.0 0.5 2.5 5.0 Additional component(s) (e.g. pH adjusters, vitamins, preservatives, extracts, thickeners) <5 <5 <5 <5 <5 Solvent(s) (water and / or non-aqueous solvents) QS QS QS QS QS

[0222] The above examples demonstrate that the methods according to the disclosure, which include treating hair with treatment compositions as described herein before, during and / or after bleaching the hair, surprisingly and unexpectedly reduce, minimize and / or prevent damage to the hair that would otherwise be expected from bleaching compositions and processes.

Claims

Claims

1. A method of treating keratin fibers, the method comprising: (i) applying to the keratin fibers a treatment composition comprising: a. at least one compound selected from amino acids or their salts; b. at least one osmolyte; c. at least one compound selected from carboxylic acids or their salts; and d. at least one solvent, and (ii) applying to the keratin fibers a bleaching composition comprising at least one oxidizing agent, wherein step (i) takes place before, during and / or after step (ii).

2. The method of claim 1, wherein the treatment composition comprises at least one osmolyte selected from valine betaine, glutamic acid betaine, glutamine betaine, trimethyllysine, glycine betaine, histidine betaine, N-methylhistidine betaine, alanine betaine, beta-alanine betaine, choline sulfate, pipecolic acid betaine, proline betaine, hydroxyproline betaine, tyrosine betaine, phenylalanine betaine, tryptophan betaine, leucine betaine, isoleucine betaine, their salts, or combinations of two or more thereof, preferably comprising glycine betaine.

3. A method according to any one of claims 1 to 2, wherein the total amount of osmolytes present in the treatment composition ranges from about 0.5% to about 10%, preferably from about 1% to about 8%, more preferably from about 1% to about 5%, and most preferably from about 1.5% to about 3.5% by weight, based on the total weight of the composition.

4. A method according to any one of claims 1 to 3, wherein the treatment composition comprises at least one amino acid selected from arginine, glycine, proline, methionine, serine, lysine, histidine, their salts, or combinations of two or more thereof.

5. A method according to any one of claims 1 to 4, wherein the total amount of amino acids and their salts present in the treatment composition ranges from about 2% to about 15%, preferably from about 2.5% to about 12%, more preferably from about 3% to about 10%, and most preferably from about 3.5% to about 8% by weight, relative to the total weight of the composition.

6. A method according to any one of claims 1 to 5, wherein the treatment composition comprises at least one carboxylic acid selected from formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, lactic acid, oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, citric acid, isocitric acid, aconitic acid, propane-1,2,3-tricarboxylic acid, their salts, or combinations of two or more thereof.

7. A method according to any one of claims 1 to 6, wherein the total amount of carboxylic acids and their salts present in the treatment composition is from about 3% to about 15%, preferably from about 3% to about 12%, more preferably from about 3.5% to about 10%, and most preferably from about 4% to about 8% by weight, based on the total weight of the composition.

8. A method according to any one of claims 1 to 7, wherein the treatment composition and / or the bleaching composition comprises at least one direct dye.

9. A method according to any one of claims 1 to 8, which is a method of providing strength to keratin fibers and / or reducing the elasticity of keratin fibers in a keratin fiber lightening process.

10. A method according to any one of claims 1 to 9, which is a method of protecting keratin fibers in a keratin fiber lightening process.

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