COMPOSITIONS AND PROCESSES FOR MODIFYING HAIR COLOUR

Abstract

HAIR COLOR MODIFICATION COMPOSITIONS AND PROCESSES The disclosure relates to compositions and processes for removing color from keratinous fibers such as hair, compositions comprising at least one thiol-based color-removing agent, hyaluronic acid, and at least one solvent. Figure for the abstract: none

Description

Title of the invention: COMPOSITIONS AND METHODS FOR MODIFYING HAIR COLOR technical field

[0001] The disclosure relates to compositions and processes for modifying the color, tone, and / or shade of hair. The compositions and processes can be used to modify hair color by removing various colors, tones, and / or shades from the hair. CONTEXT

[0002] Consumers often wish to change their hair color. For example, as a person ages, the hair follicle loses its natural pigment, resulting in gray, silver, or white hair. It is common for consumers to dye their gray hair, for example, to match their natural hair color. Similarly, consumers may wish to change the color, tone, and / or shade of their hair from their natural color or a previous hair dye job; for example, they may wish to change to a completely different color, lighten or darken their hair color, make their hair color warmer or cooler, etc. The most common hair dyeing processes are permanent, semi-permanent, or temporary hair dye.

[0003] Semi-permanent or temporary hair dye compositions typically use pigments, oil-soluble dyes, or direct dyes that are deposited onto the hair fiber to impart color to the hair. Generally, these hair dyes are removed by washing the hair after one or more shampoo cycles.

[0004] Furthermore, permanent hair dye compositions use oxidation dye precursors, which are also known as primary intermediates or couplers. In order to offer various colors, tones, and shades of permanent hair color, dye compositions contain various combinations of different types of oxidation dye compounds. These oxidation dye precursors are small, colorless or faintly colored compounds that, when combined with oxidizing agents, give rise, through an oxidative condensation process, to colored complexes. Permanent hair coloring compositions also contain ammonia or other alkalizing agents that cause the hair shaft to swell, thus allowing the oxidative dye molecules to penetrate the cuticle and the cortex before the oxidation condensation process is complete. The larger color complexes resulting from the oxidative reaction are then trapped inside the hair fiber and cannot be removed by washing, thus permanently altering the hair color.

[0005] Since permanent hair dyes cannot be removed by washing the hair, if an individual who has previously changed the color or tone of their hair with a first oxidative dye composition wishes to change the color or tone of their previously colored hair, some or all of the color imparted by the first oxidative dye composition must be neutralized. For example, a consumer may wish to remove the first color or tone in order to return to their natural hair color, or to obtain a second color different from the first color by using a second oxidative dye composition. In such cases, it is necessary to remove all of the first hair color, either to allow the natural hair color to be visible or to prevent the first color from interfering with the appearance of the second color.As another example, a consumer may wish to achieve a second tone or shade within the same color family as the first color, such as changing hair color from dark brown to light brown, and may therefore wish to remove some, but not necessarily all, of the first color. Alternatively, the desired change may be more subtle, for example, making the first color warmer or more vibrant. Thus, depending on the specific combination of oxidation dye compounds present in the first dye composition, and the desired second color or tone, different levels and types of color removal are required.

[0006] Although there are known processes that are effective in removing the first hair color, these processes have drawbacks. For example, a common color removal process uses oxidizing agents, but these compositions are aggressive and cause damage to the hair, making it fragile, brittle, and giving it an unhealthy appearance. This can be particularly problematic since the hair has already been subjected to harsh chemicals such as alkalizing and oxidizing agents in the first oxidative dye composition, and the integrity of the hair fibers is therefore already compromised. Furthermore, these compositions can essentially remove all of the hair color, and consequently, the subsequent application of a second oxidative dye composition is necessary to achieve the desired second color or tone.This step, known as . "Touching up" the color exposes the hair more to harsh chemicals and leads to further damage.

[0007] Given the damage associated with the use of oxidizing agents as color removers, a second option is to neutralize the first molecules of oxidative dye with color-removing agents such as thiol-based compounds. However, these compositions have not been as effective at removing color as those using oxidizing agents. For example, some oxidative dye compounds, particularly those that impart darker colors such as blacks, ash browns, chestnuts, ash mochas, natural ash (blue or green), ash violets, violets, red violets, reds, red mochas, red browns, mahogany, red coppers, coppers, and golds, are more resistant to removal using thiol-based color removers than to removal using oxidizing agents.As such, the color result obtained with these color-removing agents may not be satisfactory when used on hair that has been dyed with such compounds, and the remaining color will interfere with the colorist's attempt to achieve the desired color, tone, or shade.

[0008] Although attempts have been made to solve these problems, for example by adding components to the composition containing the oxidizing agent to minimize damage to the hair or by using different color-removing agents, there has not yet been an effective composition or process for removing oxidative color to allow a change in hair color that adequately minimizes or eliminates damage to the hair.Thus, the choices available today for consumers who wish to change the color of their previously dyed hair are either (1) to remove all of the hair color with a color removal composition containing harmful oxidizing agents, and then expose their hair to further damage with a second oxidative dye composition to achieve the desired color or tone, or (2) to remove only the hair dyes of the first color that are likely to be removed with other color removal agents such as thiol-based compounds, and attempt to achieve the desired color or tone with a second oxidative dye composition despite the first color remaining.

[0009] It has now been discovered, surprisingly, that the combination of hyaluronic acid and color-removing agents makes it possible to effectively remove artificial color from previously dyed hair with minimal or no foul odor during the color removal process, while also giving the hair enhanced sensory benefits such as a softer feel and a healthier appearance. The compositions and processes also allow for the controlled removal of artificial color from previously dyed hair, resulting in desired changes to hair color, shade, and / or tone. SUMMARY

[0010] The disclosure relates to compositions and processes that can be used to remove artificial hair color, particularly from hair that has been previously dyed with an oxidative dye composition. In various embodiments, the compositions and processes can remove some or all of certain dyes, while having minimal or no impact on other dyes. As such, the color left on the hair can be "tuned" to achieve the result desired by the consumer. The compositions and processes are capable of achieving a desired hair color, tone, and / or shade even without the application, or with minimal application, of subsequent hair coloring compositions. Surprisingly, the compositions have little or no odor, unlike currently known hair color removal compositions.

[0011] In various embodiments, the disclosure relates to compositions for processing keratin fibers such as hair, for example, for removing hair color in order to modify the color, tint, and / or shade of hair. The compositions comprise (a) at least one color-removing agent selected from thiosalicylic acid and / or its salts, (b) hyaluronic acid and / or one of its salts, and (c) at least one solvent. The compositions optionally comprise at least one additional color-removing agent and at least one additional compound selected from clays, surfactants, fatty compounds, thickening agents, organic acids and / or their salts, amino acids and / or their salts, aminosulfonic acids and / or their salts, organic amine compounds, or combinations of two or more of these. The solvent may be selected from water and / or non-aqueous solvents.The pH of the compositions is acidic, ranging for example from about 1 to about 6, such as from about 2 to about 5.5, from about 2.5 to about 5, from about 2.75 to about 4.75, from about 3 to about 4.5, or from about 3 to about 4.

[0012] In various embodiments, the total amount of color-eliminating agents may range from approximately 0.1% to approximately 20%, from approximately 1% to approximately 18%, from approximately 2% to approximately 15%, or from approximately 4% to approximately 12% by weight, relative to the total weight of the composition. In some embodiments, the total amount of color-eliminating agents ranges from approximately 1% to approximately 15%, from approximately 1% to approximately 10% by weight, or from approximately 2% to approximately 8% by weight, relative to the total weight of the composition. In other embodiments, the total amount of thiol-based color-eliminating agents, for example thiosalicylic acid, is The amount of thiolactic acid and / or its salts ranges from approximately 0.1% to approximately 20%, such as from approximately 1% to approximately 18%, from 2% to approximately 15%, or from approximately 4% to approximately 12% by weight, relative to the total weight of the composition. In still other embodiments, the total amount of thiosalicylic acid and its salts ranges from approximately 1% to approximately 15%, from approximately 1% to approximately 10%, or from approximately 2% to approximately 8% by weight, relative to the total weight of the composition.

[0013] Hyaluronic acid or hyaluronic acid salts, such as sodium hyaluronate, remarkably increase the effectiveness of color removal and reduce unpleasant odor when used in hair color removal compositions. The total amount of hyaluronic acid and its salts can range from approximately 0.1% to approximately 15%, such as from approximately 0.25% to approximately 12%, from approximately 0.5% to approximately 10%, from approximately 0.75% to approximately 8% by weight, or from approximately 1% to approximately 6% by weight, relative to the total weight of the composition. For example, the composition may comprise from approximately 1% to approximately 4%, from approximately 1.5% to approximately 3.5%, or from approximately 2% to approximately 3% of hyaluronic acid and its salts.

[0014] In various embodiments, the compositions comprise one or more additional components selected from organic amine compounds, organic acids and / or their salts, amino acids and / or their salts, aminosulfonic acids and / or their salts, surfactants, thickening agents, fatty compounds, clays, or combinations of two or more of these. In some embodiments, the compositions comprise at least one keto acid and / or one of its salts. In some embodiments, the compositions comprise at least one organic amine compound.

[0015] In additional embodiments, the disclosure also relates to hair treatment processes using the compositions as disclosed. For example, the processes may be processes for removing dyes, such as oxidative dyes, from hair in order to change the color, tone, and / or shade of the hair. For example, the processes may be processes for modifying hair color, in particular by removing all or part of certain dyes. In some embodiments, the compositions remove all or part of certain dyes while having minimal or no impact on other dyes, thus allowing for a controlled modification of hair color.Although some processes involve the subsequent application of a hair coloring composition, the compositions and processes described here allow desired results to be achieved even without such a subsequent coloring process.

[0016] In certain embodiments, a composition according to the disclosure may be applied to the hair and left on the hair for a period of time, for example, from about 1 minute to about 1 hour, from about 1 minute to about 45 minutes, from about 1 minute to about 30 minutes, from about 5 minutes to about 1 hour, from about 5 minutes to about 45 minutes, from about 5 minutes to about 30 minutes, etc. The hair may optionally be heated during the application period. The processes may further include removing the compositions from the hair, for example, by rinsing and / or washing the hair with shampoo. DETAILED DESCRIPTION

[0017] The disclosure relates to compositions and processes for removing hair color, particularly from hair that has been previously dyed with an oxidative dye composition. The processes include removing some or all of various dye compounds to provide a desired color, tone, and / or shade of the treated hair. I. COMPOSITIONS

[0018] The compositions according to the disclosure include (a) at least one color-eliminating agent, (b) hyaluronic acid and / or one of its salts, (c) at least one solvent, and optionally at least one additional compound selected from clays, surfactants, fatty compounds, thickeners, organic acids, amino acids, organic amine compounds, or combinations of two or more of these. Color removal agents

[0019] The compositions as disclosed include at least one color-eliminating agent. The color-eliminating agents disclosed are not oxidizing agents. By way of example, useful color-eliminating agents may be selected from thiosalicylic acid and / or its salts, thiolactic acid and / or its salts, thioglycolic acid and / or its esters, glutaric acid and / or its salts, glyoxylic acid and / or its salts, citric acid and / or its salts, or combinations of two or more of these. Non-limiting examples of salts include sodium salts, ammonium salts, lithium salts, potassium salts, and calcium salts.

[0020] In some embodiments, the selected color-removing agents comprise, consist essentially of, or consist of thiol-based compounds. Examples of thiol-based color-removing agents include thiolactic acid and / or its salts, thioglycolic acid and / or its esters, thiosalicylic acid and / or its salts, or combinations of two or more of these.

[0021] The compositions according to the disclosure may optionally include one or more additional color-eliminating agents. For example, the Compositions may optionally include at least one additional color-eliminating agent selected from cysteine ​​and / or its salts, homocysteine ​​and / or its salts, borohydrides and / or their derivatives, phosphines and / or their salts, bisulfites and / or their salts, sulfites and / or their salts, or combinations of two or more of these. However, in some embodiments, if such additional color-eliminating agent(s) is / are present, the total amount of additional color-eliminating agents may be less than approximately 5%, less than approximately 4.5%, less than approximately 4%, less than approximately 3.5%, less than approximately 3%, less than approximately 2.5%, less than approximately 2%, less than approximately 1.5%, less than approximately 1%, less than approximately 0.5%, or less than approximately 0.1% by weight of the composition.In some embodiments, the compositions are free or substantially free of color-eliminating agents other than thiol-based color-eliminating agents, or are free or substantially free of color-eliminating agents other than thiosalicylic acid, thiolactic acid and / or their salts.

[0022] In various embodiments, the total amount of color-eliminating agents can range from about 0.5% to about 20%, from about 1% to about 18%, from about 2% to about 15%, or from about 4% to about 12% by weight, relative to the total weight of the composition. For example, in various embodiments, the total quantity of color-removing agents can range from approximately 1% to approximately 20%, from approximately 1% to approximately 15%, from approximately 1% to approximately 14%, from approximately 1% to approximately 13%, from approximately 1% to approximately 12%, from approximately 1% to approximately 11%, from approximately 1% to approximately 10%, from approximately 1% to approximately 9%, from approximately 1% to approximately 8%, from approximately 1% to approximately 7%, from approximately 1% to approximately 6%, from approximately 1% to approximately 5%, from approximately 2% to approximately 20%, from approximately 2% to approximately 15%, from approximately 2% to approximately 14%, from approximately 2% to approximately 13%, from approximately 2% to approximately 12%, from approximately 2% to approximately 11%, from approximately 2% to approximately 10%, and from approximately 10% to approximately 10%. %, from approximately 2% to approximately 9%,from approximately 2% to approximately 8%, from approximately 2% to approximately 7%, from approximately 2% to approximately 6%, from approximately 2% to approximately 5%, from approximately 3% to approximately 20%, from approximately 3% to approximately 15%, from approximately 3% to approximately 14%, from approximately 3% to approximately 13%, from approximately 3% to approximately 12%, from approximately 3% to approximately 11%, from approximately 3% to approximately 10%, from approximately 3% to approximately 9%, from approximately 3% to approximately 8%, from approximately 3% to approximately 7%, from approximately 3% to approximately 6%, from approximately 3% to approximately 5%, from approximately 4% to approximately 20%, from approximately 4% to approximately 15%, from approximately 4% to approximately 14%, from approximately 4% to approximately 13%, from approximately 4% to approximately 12%, from approximately 4% to approximately 11%, from approximately 4% to approximately 10%, from approximately 4% to approximately 9%, from approximately 4% to approximately 8%, from approximately 4% to approximately 7%, from approximately 4% to approximately 6%, from approximately 4% to approximately 5%, from approximately 5% to approximately 20%, from approximately 5% to approximately 15%, from approximately 5% to approximately 14%, from approximately 5% to approximately 13%, from approximately 5% to approximately 12%, from approximately 5% to approximately 11%, from approximately 5% to approximately 10%, from approximately 5% to approximately 9%, from approximately 5% to approximately 8%, from approximately 5% to approximately 7%, or from approximately 5% to approximately 6%, from approximately 6% to approximately 20%, from approximately 6% to approximately 15%, from approximately 6% to approximately 14%, from approximately 6% to approximately 13%, from approximately 6% to approximately 12%, from approximately 6% to approximately 11%, from approximately 6% to approximately 10%, from approximately 6% to approximately 9%, from approximately 6% to approximately 8%, from approximately 6% to approximately 7%, from approximately 7% to approximately 20%, from approximately 7% to approximately 15% %, from approximately 7% to approximately 14%, from approximately 7% to approximately 13%, from approximately 7% to approximately 12%, from approximately 7% to approximately 11%, from approximately 7% to approximately 10%, from approximately 7% to approximately 9%, from approximately 7% to approximately 8%, from approximately 8% to approximately 20%, from approximately 8% to approximately 15%, from approximately 8% to approximately 14%, from approximately 8% to approximately 13%, from approximately 8% to approximately 12%from about 8% to about 11%, from about 8% to about 10%, from about 8% to about 9%, from about 9% to about 20%, from about 9% to about 15%, from about 9% to about 14%, from about 9% to about 13%, from about 9% to about 12%, from about 9% to about 11%, from about 9% to about 10%, from about 10% to about 20%, from about 10% to about 15%, from about 10% to about 14%, from about 10% to about 13%, from about 10% to about 12%, or from about 10% to about 11% by weight, relative to the total weight of the composition. For example, the total amount of color-eliminating agents may be approximately 1%, approximately 2%, approximately 3%, approximately 4%, approximately 5%, approximately 6%, approximately 7%, approximately 8%, approximately 9%, approximately 10%, approximately 11%, approximately 12%, approximately 13%, approximately 14%, or approximately 15% by weight, relative to the total weight of the composition,including any range using any previous values ​​as upper and lower bounds.

[0023] In some embodiments, the compositions comprise a total amount of thiol-based color-eliminating agents in any of the preceding ranges and amounts.For example, compositions may include one or more of thiosalicylic acid, thiolactic acid, and / or their salts as color-removing agents, and the total amount of thiosalicylic acid, thiolactic acid, and their salts may be at least approximately 1%, for example, may range from approximately 1% to approximately 20%, from approximately 1% to approximately 18%, from approximately 1% to approximately 15%, from approximately 1% to approximately 12%, from approximately 1% to approximately 10%, from approximately 1% to approximately 8%, from approximately 1% to approximately 6%, from approximately 1.5% to approximately 20%, from approximately 1.5% to approximately 18%, from approximately 1.5% to approximately 15%, from approximately 1.5% to approximately 12%, from approximately 1.5% to approximately 10%, from approximately 1.5% to about 8%, from about 1.5% to about 6%, from about 2% to about 20%, from about 2% to about 18%, from about 2% to about 15%, from about 2% to about 12%, from about 2% to about . 10%, from approximately 2% to approximately 8%, from approximately 2% to approximately 6%, from approximately 2.5% to approximately 20%, from approximately 2.5% to approximately 18%, from approximately 2.5% to approximately 15%, from approximately 2.5% to approximately 12%, from approximately 2.5% to approximately 10%, from approximately 2.5% to approximately 8%, from approximately 2.5% to approximately 6%, from approximately 3% to approximately 20%, from approximately 3% to approximately 18%, from approximately 3% to approximately 15%, from approximately 3% to approximately 12%, from approximately 3% to approximately 10%, from approximately 3% to approximately 8%, from approximately 3% to approximately 6%, from approximately 3.5% to approximately 20%, from approximately 3.5% to approximately 18%, from approximately 3.5% to approximately 15% from about 3.5% to about 12%, from about 3.5% to about 10%, from about 3.5% to about 8%, from about 3.5% to about 6%, from about 4% to about 20%, from about 4% to about 18%, from about 4% to about 15%, from about 4% to about 12%, from about 4% to about 10%, from about 4% to about 8%, from about 4% to about 6%, from about 4.5% to about 20%, from about 4.5% to about 18%, 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 8%, or from about 4.5% to about 6% by weight, relative to the total weight of the composition. For example, the composition may comprise a total amount of thiol-based color-removing agents, such as thiosalicylic acid, thiolactic acid, and their salts, of approximately 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, or approximately 10% by weight, relative to the total weight of the composition, or may be present within a range using any of the preceding values ​​as upper or lower limits. In such embodiments,The compositions may optionally include at least one additional color-removing agent besides the thiol-based agents, for example, in addition to thiosalicylic acid, thiolactic acid, and / or their salts. Hyaluronic acid

[0024] The compositions comprise hyaluronic acid and / or one or more of its salts. Without intending to make a theory, it is believed that hyaluronic acid acts synergistically with color-removing agents to reduce odor and enhance color removal, helping to alter the color, tone, and / or shade of the hair, and also improves the sensory properties of the treated hair. It should be understood that hyaluronic acid salts are included, whether specified or not, unless expressly stated otherwise. Non-limiting examples of salts include sodium salts, ammonium salts, lithium salts, potassium salts, and calcium salts. For example, sodium hyaluronate may be chosen.

[0025] In various embodiments, the compositions comprise a total amount of hyaluronic acid and its salts ranging from about 0.1% to about 15% by weight, such as from about 0.25% to about 12%, from about 0.5% to about 10%, or from about 0.75% to about 8% or from about 1% to about 6% by weight, relative to the total weight of the composition. For example, the total amount of hyaluronic acid and its salts can range from approximately 0.1% to approximately 10%, from approximately 0.1% to approximately 8%, for example from approximately 0.1% to approximately 6%, from approximately 0.1% to approximately 5%, from approximately 0.1% to approximately 4%, from approximately 0.1% to approximately 3%, from approximately 0.1% to approximately 2%, from approximately 0.1% to approximately 1%, from approximately 0.25% to approximately 10%, from approximately 0.25% to approximately 8%, from approximately 0.25% to approximately 6%, from approximately 0.25% to approximately 5%, from approximately 0.25% to approximately 4%, from approximately 0.25% to approximately 3%, from approximately 0.25% to approximately 2%, from approximately 0.25% to approximately 1%, from approximately 0.5% to approximately 10%,from about 0.5% to about 8%, from about 0.5% to 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 0.75% to about 10%, from about 0.75% to about 8%, from about 0.75% to about 6%, from about 0.75% to about 5%, from about 0.75% to about 4%, from about 0.75% to about 3%, from about 0.75% to about 2%, from about 0.75% to about 1%, from about 1% to about 10%, from about 1% to about 8%, from about 1% to about 6%, from about 1% to about 5%, from approximately 1% to approximately 4%, from approximately 1% to approximately 3%, from approximately 1% to approximately 2%, from approximately 1.25% to approximately 10%, from approximately 1.25% to approximately 8%, from approximately 1.25% to approximately 6%, from approximately 1.25% to approximately 5%, from approximately 1.25% to approximately 4%, from approximately 1.25% to approximately 3%, from approximately 1.25% to approximately 2%, from approximately 1.5% to approximately 10%, from approximately 1.5% to approximately 8%, from approximately 1.5% to approximately 6%from approximately 1.5% to approximately 5%, from approximately 1.5% to approximately 4%, from approximately 1.5% to approximately 3%, from approximately 1.5% to approximately 2%, from approximately 1.75% to approximately 10%, from approximately 1.75% to approximately 8%, from approximately 1.75% to approximately 6%, from approximately 1.75% to approximately 5%, from approximately 1.75% to approximately 4%, from approximately 1.75% to approximately 3%, from approximately 2% to approximately 10%, from approximately 2% to approximately 8%, from approximately 2% to approximately 6%, from approximately 2% to approximately 5%, from approximately 2% to approximately 4%, from approximately 2% to approximately 3%, from approximately 2.25% to approximately 10%, from approximately 2.25% to approximately 8%, from approximately 2.25% to approximately 6% %, from approximately 2.25% to approximately 5%, from approximately 2.25% to approximately 4%, or from approximately 2.25% to approximately 3% by weight, relative to the total weight of the composition. In other embodiments, the total amount of hyaluronic acid and its salts may be approximately 0.5%, approximately 0.75%, approximately 1%, approximately 1.25%, approximately 1.5%, approximately 1.75%, approximately 2%, approximately 2.25%, approximately 2.5%of approximately 2.75%, approximately 3%, approximately 3.25%, approximately 3.5%, approximately 3.75%, approximately 4%, approximately 4.25% or approximately 4.5%, or in any, range using any previous values ​​as upper and lower limits. Solvents

[0026] The compositions according to the disclosure comprise at least one solvent. The solvent may be chosen from water, non-aqueous solvents or combinations thereof.

[0027] In various embodiments, the solvent comprises, is essentially made up of, or is made up of water. The total amount of water can vary depending on the desired properties of the composition, for example, consistency, viscosity, etc.

[0028] In some embodiments, non-aqueous solvents may be used, for example, glycerin, C1.4 alcohols, fatty alcohols, fatty ethers, fatty esters, polyols, glycols, vegetable oils, mineral oils, liposomes, laminar lipid materials or combinations thereof. Other non-limiting examples of non-aqueous solvents include alkanediols such as glycerin, 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, (caprylyl glycol), 1,2-hexanediol, 1,2-pentanediol, and 4-methyl-1,2-pentanediol; alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol, and isopropanol;glycol ethers such as monomethyl ethylene glycol ether, monoethyl ethylene glycol ether, monobutyl ethylene glycol ether, ethylene glycol acetate monomethyl ether, monomethyl diethylene glycol ether, monoethyl diethylene glycol ether, mono-n-propyl diethylene glycol ether, mono-isopropyl ethylene glycol ether, mono-isopropyl diethylene glycol ether, mono-n-butyl ethylene glycol ether, mono-t-butyl ethylene glycol ether, mono-t-butyl diethylene glycol ether, 1-methyl-l-methoxybutanol, monomethyl propylene glycol ether, monoethyl propylene glycol ether, mono-t-butyl propylene glycol ether, mono-n-propyl propylene glycol ether, mono-isopropyl propylene glycol ether, monomethyl dipropylene glycol ether, monoethyl dipropylene glycol ether, mono-n-propyl dipropylene glycol ether and mono-iso-propyl dipropylene glycol ether;2-pyrrolidone, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbit, sorbitan, acetin, diacetinate, triacetin, sulfolane, or combinations thereof.

[0029] The total amount of solvents in the composition typically ranges from about 50% to about 98%, such as about 60% to about 98%, about 70% to about 98%, about 75% to about 98%, about 75% to about 95%, or about 80% to about 90% by weight, relative to the total weight of the composition. Organic acids

[0030] The compositions according to the disclosure optionally include at least one organic acid, for example selected from carboxylic acids, which includes, for example, α-hydroxy acids and / or keto acids. Salts of organic acids may also be used, and are expressly included unless otherwise expressly stated.

[0031] In various embodiments, useful organic acids include citric acid, maleic acid, succinic acid, aspartic acid, glutamic acid, lactic acid, malic acid, tartaric acid, glyceric acid, gluconic acid, glutaric acid, acetic acid, glycolic acid, oxalic acid, 2-ketobutyric acid, [3-hydroxypyruvic acid, cetomalonic acid, oxoacetic acid, 2-ketoglutaric acid, 2-keto-L-gulonic acid, 2-ketoglutaric acid dihydrate, their pyruvamide salts, or combinations thereof. In some embodiments, the composition comprises one or more organic acids selected from 2-oxoglutaric acid (ketoglutaric acid), glyoxylic acid, glycolic acid, maleic acid, citric acid, lactic acid, acetic acid, their salts, or combinations of two or more of these.

[0032] In some embodiments, the compositions comprise at least one carboxylic acid. In some embodiments, the compositions comprise at least one keto acid. Without intending to develop a theory, it is thought that keto acids, which are acids containing two oxygen-containing functional groups, a carboxylic acid (-COOH) and a ketone group (>C=O), enhance the color-removing benefits of color-removing agents.

[0033] Where appropriate, the total amount of organic acids and their salts may range from about 0.01% up to about 40%, such as up to about 38%, up to about 35%, up to about 30%, up to about 28%, up to about 25%, up to about 20%, up to about 15%, up to about 13%, up to about 10%, up to about 9%, up to about 8%, up to about 7%, up to about 6%, or up to about 5% by weight, relative to the total weight of the composition.

[0034] For example, the compositions may comprise at least one carboxylic acid and the total amount of at least one carboxylic acid may range from about 0.1% to about 30%, from about 0.1% to about 28%, from about 0.1% to about 25%, from about 0.1% to about 20%, from about 0.1% to about 15%, from about 0.1% to about 13%, from about 0.1% to about 10%, from about 0.1% to about 8%, from about 0.1% to about 6%, from about 0.1% to about 5%, from about 0.5% to about 30%, from about 0.5% to about 28%, from about 0.5% to about 25%, from about 0.5% to about 20%, from about 0.5% to about 15%, from approximately 0.5% to approximately 13%, from approximately 0.5% to approximately 10%, from approximately 0.5% to approximately 8%, from approximately 0.5% to approximately 6%, from approximately 0.5% to approximately 5%, from approximately 1% to approximately 30%, from approximately 1% to approximately 28%, from approximately 1% to approximately 25%, from approximately 1% to approximately 20%, from approximately 1% to approximately 15%, from approximately 1% to approximately 13%, from approximately 1% to approximately 10%, from approximately 1% to approximately 8%, from approximately 1% to approximately 6%, from approximately 1% to approximately 5%, from approximately 1.5% to approximately 30%, from approximately 1.5% to approximately 28%, from approximately 1.5% to approximately 25%, from approximately 1.5% to approximately 20%, from approximately 1.5% to approximately 15%, from approximately 1.5% to approximately 13%, from approximately 1.5% to approximately 10%, from approximately 1.5% to approximately 8%, from approximately 1.5% to approximately 6%, from approximately 1.5% to approximately 5% from approximately 2% to approximately 30%, from approximately 2% to approximately 28%, from approximately 2% to approximately 25%, from approximately 2% to approximately 20%, from approximately 2% to approximately 15%, from approximately 2% to approximately 13%, from approximately 2% to approximately 10%, from approximately 2% to approximately 8%, from approximately 2% to approximately 6%, from approximately 2% to approximately 5%, from approximately 3% to approximately 30%, from approximately 3% to approximately 28%, from approximately 3% to approximately 25%from approximately 3% to approximately 20%, from approximately 3% to approximately 15%, from approximately 3% to approximately 13%, from approximately 3% to approximately 10%, from approximately 3% to approximately 8%, from approximately 3% to approximately 6%, from approximately 3% to approximately 5%, from approximately 4% to approximately 30%, from approximately 4% to approximately 28%, from approximately 4% to approximately 25%, from approximately 4% to approximately 20%, from approximately 4% to approximately 15%, from approximately 4% to approximately 13%, from approximately 4% to approximately 10%, from approximately 4% to approximately 8%, from approximately 5% to approximately 30%, from approximately 5% to approximately 28%, from approximately 5% to approximately 25%, from approximately 5% to approximately 20%, from approximately 5% to approximately 15%, from approximately 5% to approximately 13%, from approximately 5% to approximately 10%, from approximately 5% to approximately 8%, from approximately 6% to approximately 30%, from approximately 6% to approximately 28%, from approximately 6% to approximately 25%, from approximately 6% to approximately 20%, from approximately 6% to approximately 15%, from approximately 6% to approximately 13%, from approximately 6% to approximately 10%, from approximately 6% to approximately 8%, from approximately 8% to approximately 30%, from approximately 8% to approximately 28%from about 8% to about 25%, from about 8% to about 20%, from about 8% to about 15%, from about 8% to about 13%, from about 10% to about 30%, from about 10% to about 28%, from about 10% to about 25%, from about 10% to about 20%, from about 10% to about 15%, from about 10% to about 13%, from about 12% to about 30%, from about 12% to about 28%, from about 12% to about 25%, from about 12% to about 20%, from about 12% to about 15%, or from about 12% to about 13% by weight, relative to the total weight of the composition. In some embodiments, the total amount of carboxylic acids may be about 1%, about 1.5%, approximately 2%, approximately 2.5%, approximately 3%, approximately 3.5%, approximately 4%, approximately 4.5%, approximately 5%, approximately 5.5%, approximately 6%, approximately 6.5%, approximately 7%, approximately 7.5%, approximately 8%, approximately 8.5%, approximately 9%, approximately 9.5%, approximately 10%, approximately 11%, approximately 12%, approximately 13%approximately 14%, approximately 15%, approximately 16%, approximately 17%, approximately 18%, approximately 19%, approximately 20%, approximately 21%, approximately 22% of about 23%, about 24%, or about 25% by weight, relative to the total weight of the composition, including all ranges and subranges using any of the previous values ​​as upper and lower limits.

[0035] In other embodiments, the compositions comprise at least one keto acid, and the total amount of keto acids ranges from about 0.01% up to about 20%, up to about 15%, up to about 13%, up to about 10%, up to about 9%, up to about 8%, up to about 7%, up to about 6%, or up to about 5% by weight, relative to the total weight of the composition. For example, the total amount of ketoacids can range from about 0.1% to about 20%, from about 0.1% to about 15%, from about 0.1% to about 13%, from about 0.1% to about 10%, from about 0.1% to about 8%, from about 0.5% to about 20%, from about 0.5% to about 15%, from about 0.5% to about 13%, from about 0.5% to about 10%, from about 0.5% to about 8%, from about 1% to about 20%, from about 1% to about 15%, from about 1% to about 13%, from about 1% to about 10%, from about 1% to about 8%, from about 1.5% to about 20%, from about 1.5% to about 15%,from approximately 1.5% to approximately 13%, from approximately 1.5% to approximately 10%, from approximately 1.5% to approximately 8%, from approximately 2% to approximately 20%, from approximately 2% to approximately 15%, from approximately 2% to approximately 13%, from approximately 2% to approximately 10%, from approximately 2% to approximately 8%, from approximately 3% to approximately 20%, from approximately 3% to approximately 15%, from approximately 3% to approximately 13%, from approximately 3% to approximately 10%, from approximately 3% to approximately 8%, from approximately 4% to approximately 20%, from approximately 4% to approximately 15%, from approximately 5% to approximately 13%, from approximately 5% to approximately 10%, from approximately 5% to approximately 8%, from approximately 6% to approximately 20%, from approximately 6% to approximately 15%, from approximately 6% to approximately 13%, from approximately 6% to approximately 10%, from approximately 6% to approximately 8%, from approximately 8% to approximately 20%, from approximately 8% to approximately 15%, from approximately 8% to approximately 13%, from approximately 8% to approximately 12%, from approximately 8% to approximately 11%from about 9% to about 20%, from about 9% to about 15%, from about 9% to about 13%, from about 9% to about 12%, or from about 9% to about 11% by weight, relative to the total weight of the composition. In some embodiments, the total amount of keto acids may be about 5%, about 5.5%, about 6%, about 6.5%, about 7%, about 7.5%, about 8%, about 8.5%, about 9%, about 9.5%, about 10%, about 10.5%, about 11%, about 11.5%, about 12%, about 12.5%, about 13%, about 13.5%, about 14%, about 14.5%, or about 15% by weight, relative to the total weight of the composition, including all ranges and sub-ranges using any previous values ​​as upper and lower limits.

[0036] In some embodiments, it may be advantageous to include at least one keto acid in the composition in an amount relative to the color-removing agent to maximize the color-removing benefits. Thus, in various embodiments, the compositions include at least one keto acid where the weight ratio between the total amounts of color-removing agent(s) and keto acid(s) ranges from approximately 1:0.5 to 1:10. In other embodiments, it may be advantageous for the weight ratio between the total amounts of color-removing agent(s) and keto acid(s) to be equal to or less than 1.For example, the weight ratio between the total amounts of color-removing agent(s) and keto acid(s) can range from approximately 1:1 to approximately 1:10, such as from approximately 1:1 to approximately 1:8, from approximately 1:1 to approximately 1:6, from approximately 1:1 to approximately 1:5, from approximately 1:1 to approximately 1:4, from approximately 1:1 to approximately 1:3, from approximately 1:1 to approximately 1:2, from approximately 1:1 to approximately 1:1.5, from approximately 1:1.1 to approximately 1:10, from approximately 1:1.1 to approximately 1:8, from approximately 1:1.1 to approximately 1:6, from approximately 1:1.1 to approximately 1:5, from approximately 1:1.1 to approximately 1:4, from approximately 1:1.1 to approximately 1:3, from about 1:1.1 to about 1:2, or from about 1:1.1 to about 1:1.5.In other embodiments, the weight ratio between the total amounts of colour-removing agent(s) and keto acid(s) may be about 0.1, about 0.2, about 0.3, about 0.4, 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, or about 1.5, including all ranges and subranges using any of the preceding values ​​as upper and lower limits.

[0037] In embodiments where the color-removing agents are selected from thiol-based compounds, for example thiosalicylic acid, thiolactic acid, and / or their salts, the weight ratio between the total amounts of thiol-based color-removing agent(s) and keto acid(s) may be any of the aforementioned ratios. For example, in some embodiments, the weight ratio between thiol-based color-removing agent(s) and keto acid(s) may range from approximately 1:0.5 to 1:10, or may be equal to or less than 1.For example, the weight ratio between the total amounts of thiol-based color-removing agent(s) and keto acid(s) can range from approximately 1:1 to approximately 1:10, such as from approximately 1:1 to approximately 1:8, from approximately 1:1 to approximately 1:6, from approximately 1:1 to approximately 1:5, from approximately 1:1 to approximately 1:4, from approximately 1:1 to approximately 1:3, from approximately 1:1 to approximately 1:2, from approximately 1:1 to approximately 1:1.5, from approximately 1:1.1 to approximately 1:10, from approximately 1:1.1 to approximately 1:8, from approximately 1:1.1 to approximately 1:6, from approximately 1:1.1 to approximately 1:5, from approximately 1:1.1 to approximately 1:4, and so on. 1:1.1 to about 1:3, from about 1:1.1 to about 1:2, or from about 1:1.1 to about 1:1.5. In other embodiments, the weight ratio between the total amounts of thiol-based color-removing agent(s) and keto acid(s) may be about 0.1, about 0.2, about 0.3, about 0.4, about 0.5, about . 0.6, approximately 0.7, approximately 0.8, approximately 0.9, approximately 1, approximately 1.1, approximately 1.2, approximately 1.3, approximately 1.4, or approximately 1.5, including all ranges and subranges using any of the preceding values ​​as upper and lower bounds. Surfactants

[0038] The compositions according to the disclosure optionally include at least one surfactant, which may be selected in various embodiments from among anionic, nonionic, amphoteric, and / or cationic surfactants. For example, the compositions may include one or more anionic surfactants, one or more nonionic surfactants, one or more amphoteric surfactants, one or more cationic surfactants, or the compositions may include mixtures of surfactants having the same or different ionicities. Salts of surfactants are included, whether expressly stated or not, unless otherwise specified. Anionic surfactants

[0039] In at least some embodiments, the compositions comprise at least one anionic surfactant. The term "anionic surfactant" refers to a surfactant comprising, as ionic or ionizable groups, only anionic groups. A species is said to be "anionic" when it carries at least one permanent negative charge or when it can be ionized into a negatively charged species under the conditions of use of the composition (for example, the medium or the pH) and it does not contain any cationic charge. These anionic groups may be selected, for example, from the groups —CO2H, —CO2-, —SO3H, —SO3-, —OSO3H, —OSO3-, —H2PO3, —HPO3-, —PO32-, —H2PO2, =HPO2, —HPO2-, =PO2-, =POH and =PO2.

[0040] Anionic surfactants may be sulfate, sulfonate and / or carboxylic (or carboxylate) surfactants, or mixtures thereof.

[0041] Anionic sulfate surfactants comprise at least one sulfate group (-OSO3H or -OSO3) but generally do not comprise a carboxylate or sulfonate group. In some embodiments, the anionic sulfate surfactants used are free of a carboxylate or sulfonate group.

[0042] Non-limiting examples of anionic sulfate surfactants include alkyl sulfates, alkyl ethers sulfates, alkylamidoethers sulfates, alkylaryl polyethers sulfates, monoglycerides sulfates; as well as salts of these compounds; the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, better still from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl group. or benzyl; these compounds being optionally polyoxyalkylated, for example polyoxyethylated, and optionally comprising from 1 to 50 ethylene oxide motifs, such as from 2 to 10 ethylene oxide motifs.

[0043] Sulfonate anionic surfactants comprise at least one sulfonate function (-SO3H or -SO3-) and may optionally also comprise one or more sulfate functions, but preferably do not comprise carboxylate functions.

[0044] Non-limiting examples of anionic sulfonate surfactants include alkylsulfonates, alkylamide sulfonates, alkylarylsulfonates, α-olefin sulfonates, paraffin sulfonates, alkylsulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates, alkylsulfoacetates, N-acyltaurates, acylisethionates; alkylsulfolaurates; and also salts of these compounds; the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, for example from 12 to 28, such as from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds being optionally polyoxyalkylated, preferably polyoxyethylated, and optionally comprising from 1 to 50 ethylene oxide motifs and better still from 2 to 10 ethylene oxide motifs.

[0045] Carboxylate anionic surfactants comprise at least one carboxylic or carboxylate function (-COOH or -COO ) and may optionally also comprise one or more sulfate and / or sulfonate functions.

[0046] Non-limiting examples of anionic carboxylate surfactants include acylglycinates, acyllactylates, acylsarcosinates, acylglutamates, alkyl-D-galactosideuronic acids, alkyl ether carboxylic acids, alkyl(C6-30 aryl) ether carboxylic acids, alkylamido ether carboxylic acids; and also the salts of these compounds; the alkyl and / or acyl groups of these compounds comprising from 6 to 30 carbon atoms, for example from 12 to 28, such as from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds being optionally polyoxyalkylated, preferably polyoxyethylated, and optionally comprising from 1 to 50 ethylene oxide motifs and better still from 2 to 10 ethylene oxide motifs.

[0047] When the anionic surfactant is in salt form, the salt can be chosen from alkali metal salts, such as sodium or potassium salts, ammonium salts, amine salts and in particular amino alcohol salts, and alkaline earth metal salts, such as magnesium salt.

[0048] Examples of amino alcohol salts may include, but are not limited to, monoethanolamine, diethanolamine and triethanolamine salts, monoisopropanolamine, diisopropanolamine or triisopropanolamine salts, 2- amino-2-methyl-l-propanol, 2-amino-2-methyl-l,3-propanediol salts and tris(hydroxymethyl)aminomethane salts.

[0049] In some embodiments, alkali metal or alkaline earth metal salts and in particular sodium or magnesium salts may be chosen, in particular in the form of alkali metal, ammonium, amino alcohol and alkaline earth metal salts, or a mixture of these compounds.

[0050] In non-limiting exemplary embodiments, the anionic surfactant may be selected from sodium laureth sulfate, ammonium laureth sulfate, disodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, diammonium lauryl sulfosuccinate, sodium diethylhexyl sulfosuccinate, sodium oleylsuccinate, sodium lauroyl methylisethionate, sodium laurylisethionate, sodium cocoylisethionate, sodium laureth-5 carboxylate, lauryl ethercarboxylic acid, ammonium lauryl sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, the diethanolamine lauryl sulfate, diethanolamine laureth sulfate, sodium lauryl monoglyceride sulfate, sodium lauryl sulfate, potassium lauryl sulfate, potassium laureth sulfateammonium cocoyl sulfate, ammonium lauroyl sulfate, sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate, monoethanolamine cocoyl sulfate, sodium tridecylbenzenesulfonate, sodium dodecylbenzenesulfonate, a sodium olefin sulfonate in Ci4-i6, sodium laurylsarcosinate, sodium lauroyl sarcosinate, stearoylsarcosine, laurylsarcosine, cocoylsarcosine, sodium methylcocoyltaurate, sodium methyllauroyltaurate, sodium lauroylglutamate, sodium cocoylglutamate, disodium cocoylglutamate, potassium myristoylglutamate, TEA cocoylglutamate, sodium cocoylglycinate, potassium cocoylglycinate, cocoyllaninate sodium, TEA cocoyllaninate, or a combination of two or more of these. For example, compositions may include at least one anionic surfactant selected from sodium laureth sulfate, sodium lauryl sulfate,sodium lauroyl sulfate, sodium lauroyl methyl isethionate, or a combination of two or more of these.

[0051] Where appropriate, the total amount of anionic surfactants may range from approximately 0.01% to approximately 15%, such as up to approximately 12%, up to approximately 10%, up to approximately 8%, up to approximately 5%, up to approximately 3.5%, or up to approximately 2% by weight, relative to the total weight of the composition. For example, the total amount of anionic surfactants may range from approximately 0.01% to approximately 12%, from approximately 0.1% to approximately 10%, from approximately 0.5% to approximately 8%, or from approximately 1% to approximately 6% by weight. weight, relative to the total weight of the composition. In at least some embodiments, the compositions comprise at least one anionic surfactant, and have a total amount of anionic surfactants ranging 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 5%, from about 0.5% to about 4%, from about 0.5% to about 3%, from about 0.75% to about 10%, from about 0.75% to about 8%, from about 0.75% to about 6%, from about 0.75% to about 5%, from about 0.75% to about 4%, from about 0.75% to about 3%, from about 1% to about 10%, from about 1% to about 8%, 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 1.25% to about 10%, from about 1.25% to about 8%, from about 1.25% to about 6%, from about 1.25% to about 5%, from about 1.25% to about 4%, from about 1.25% to about 3%, from about 1%5% to about 10%, from about 1.5% to about 8%, from about 1.5% to about 6%, from about 1.5% to about 5%, from about 1.5% to about 4%, or from about 1.5% to about 3%, by weight relative to the total weight of the composition. In various embodiments, the total amount of anionic surfactant may be approximately 0.25%, approximately 0.5%, approximately 0.75%, approximately 1%, approximately 1.25%, approximately 1.5%, approximately 2%, approximately 2.5%, approximately 3%, approximately 3.5%, approximately 4%, approximately 4.5%, approximately 5%, approximately 5.5%, approximately 6%, approximately 6.5%, approximately 7%, approximately 7.5%, approximately 8%, approximately 8.5%, approximately 9%, approximately 9.5%, or approximately 10%, by weight, relative to the total weight of the composition, or it may be present in any range using any of the preceding values ​​as lower or upper limits. Amphoteric surfactants

[0052] In at least some embodiments, the compositions comprise at least one amphoteric surfactant (also called zwitterionic surfactants), although in at least some embodiments, the compositions are free or substantially free of amphoteric surfactants. 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 carboxy, sulfonate, sulfate, phosphate, or phosphonate.Examples of amphoteric surfactants include sodium cocaminopropionate, sodium cocaminodipropionate, sodium cocoamphoacetate, sodium cocoamphohydroxypropylsulfonate, sodium cocoamphopropionate, sodium mausamphopropionate, sodium lauraminopropionate, sodium lauroamphoacetate, sodium lauroamphohydroxypropylsulfonate, sodium lauroamphopropionate, mausamphopropionate. sodium, sodium lauriminodipropionate, ammonium cocaminopropionate, ammonium cocaminodipropionate, ammonium cocoamphoacetate, ammonium cocoamphohydroxypropylsulfonate, ammonium cocoamphopropionate, ammonium maizemphopropionate, ammonium lauraminopropionate, ammonium lauroamphoacetate, ammonium lauroamphohydroxypropylsulfonate, ammonium lauroamphopropionate, ammonium maizemphopropionate, ammonium lauriminodipropionate, triethanolamine cocaminopropionate, triethanolamine cocaminodipropionate, triethanolamine cocoamphoacetate, triethanolamine cocoamphohydroxypropylsulfonate, triethanolamine cocoamphopropionate, triethanolamine maizemphopropionate, triethanolamine lauraminopropionate, triethanolamine lauroamphoacetate, triethanolamine lauroamphohydroxypropylsulfonate, lauroamphopropionate triethanolamine, triethanolamine maize amphopropionate, 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, PPG-2-isodecethyl-7 carboxyamphodiacetate, lauraminopropionic acid, lauroamphodipropionic acid, lauryl aminopropylglycine and lauryl diethylenediaminoglycine, as well as combinations of two or more of these.

[0053] Betaines can also be used. For example, coco dimethyl carboxymethyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl alphacarboxyethyl betaine, cetyl dimethyl carboxymethyl betaine, cetyl dimethyl betaine, lauryl bis-(2-hydroxyethyl) carboxymethyl betaine, stearyl bis-(2-hydroxypropyl) carboxymethyl betaine, oleyl dimethyl gamma-carboxypropyl betaine, lauryl bis-(2-hydroxypropyl) alpha-carboxyethyl betaine, coco dimethyl sulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, lauryl dimethyl sulfoethyl betaine, lauryl bis-(2-hydroxyethyl) sulfopropyl betaine, oleyl betaine or cocamidopropyl betaine, or combinations of two or more of these may be chosen.

[0054] Where appropriate, the total amount of amphoteric surfactants may range from approximately 0.01% up to approximately 15%, such as up to approximately 12%, up to approximately 10%, up to approximately 8%, up to approximately 5%, up to approximately 3.5%, or up to approximately 2% by weight, relative to the total weight of the composition. For example, the total amount of amphoteric surfactants may range from approximately 0.01% to approximately 10%, from approximately 0.1% at about 8%, from about 0.5% to about 6%, or from about 1% to about 4% by weight, relative to the total weight of the composition.In at least some embodiments, the compositions comprise at least one amphoteric surfactant, and have a total amount of amphoteric or zwitterionic surfactants ranging from about 0.25% to about 5%, such as from about 0.5% to about 4%, from about 0.75% to about 3%, or from about 1% to about 2%, or may be about 0.25%, about 0.5%, about 0.75%, about 1%, about 1.25%, about 1.5%, about 2%, about 2.5%, about 3%, about 3.5%, about 4%, about 4.5%, about 5%, about 5.5%, about 6%, about 6.5%, about 7%, about 7.5%, about 8%, about 8.5%, approximately 9%, approximately 9.5%, or approximately 10% by weight, relative to the total weight of the composition, including any range using any of the preceding values ​​as upper and lower limits.In at least some other embodiments, the compositions are free or substantially free of amphoteric surfactants. Non-ionic surfactants

[0055] In at least some embodiments, the compositions comprise at least one nonionic surfactant, although in at least some embodiments, the compositions are free or essentially free of nonionic surfactants. The nonionic surfactants may be selected from alcohols, α-diols and alkylphenols (in (C1-C20)), these compounds being polyethoxylated, polypropoxylated and / or polyglycerolated, the number of ethylene oxide and / or propylene oxide groups possibly ranging from 1 to 100, and the number of glycerol groups possibly ranging from 2 to 30, or alternatively these compounds comprising at least one fatty chain comprising from 8 to 30 carbon atoms and in particular from 16 to 30 carbon atoms.For example, nonionic surfactants can be selected from monooxyalkylated or polyoxyalkylated (C8-C24)alkylphenols, monooxyalkylated or polyoxyalkylated C8-C30 alcohols, saturated or unsaturated, linear or branched, monooxyalkylated or polyoxyalkylated C8-C30 amides, saturated or unsaturated, linear or branched, esters of saturated or unsaturated C8-C30 acids, linear or branched, and polyalkylene glycols, monooxyalkylated or polyoxyalkylated esters of saturated or unsaturated C8-C30 acids, linear or branched, and sorbitol, saturated or unsaturated monooxyalkylated or polyoxyalkylated vegetable oils, ethylene oxide and / or propylene oxide condensates, or their derivatives. combinations.

[0056] By way of example only, ethylene oxide adducts with lauryl alcohol, for example those containing 9 to 50 oxyethylene units or 10 to 12 oxyethylene units (Laureth-10 to Laureth-12); ethylene oxide adducts with alcohol behenyl, for example those containing 9 to 50 oxyethylene units (Beheneth-9 to Beheneth-50); ethylene oxide adducts with cetearyl alcohol (mixture of cetyl alcohol and stearyl alcohol), for example those containing 10 to 30 oxyethylene units (Ceteareth-10 to Ceteareth-30); ethylene oxide adducts with cetyl alcohol, for example those containing 10 to 30 oxyethylene units (Ceteth-10 to Ceteth-30); ethylene oxide adducts with stearyl alcohol, for example those containing 10 to 30 oxyethylene units (Steareth-10 to Steareth-30); ethylene oxide adducts with isostearyl alcohol, for example those containing 10 to 50 oxyethylene motifs (Isosteareth-10 to Isosteareth-50);C8-C40 alcohols, for example C8-C30, monoglycerol or polyglycerol, such as lauryl alcohol containing 4 moles of glycerol (Polyglyceryl-4 Lauryl Ether), lauryl alcohol containing 1.5 moles of glycerol, oleyl alcohol containing 4 moles of glycerol (Polyglyceryl-4 Oleyl Ether), oleyl alcohol containing 2 moles of glycerol (Polyglyceryl-2 Oleyl Ether), cetearyl alcohol containing 2 moles of glycerol, cetearyl alcohol containing 6 moles of glycerol, oleocetyl alcohol containing 6 moles of glycerol, or octadecanol containing 6 moles of glycerol;polyoxyethylenated fatty esters such as ethylene oxide adducts with lauric acid, palmitic acid, stearic acid or behenic acid esters, and mixtures thereof, for example those containing 9 to 100 oxyethylene units such as PEG-9 to PEG-50 laurate, PEG-9 to PEG-50 palmitate, PEG-9 to PEG-50 stearate, PEG-9 to PEG-50 palmitostearate, PEG-9 to PEG-50 behenate, polyethylene glycol 100 OE monostearate (PEG-100 stearate); glyceryl stearate (glyceryl mono-, di- and / or tri-stearate); glyceryl ricinoleate; sorbitan palmitate; Sorbitan isostearate; sorbitan stearate; sorbitan palmitate; sorbitan trioleate; alkylglucose sesquistearates such as methylglucose sesquistearate; alkylglucose palmitates such as methylglucose or ethylglucose palmitate, etc., or combinations of two or more of these may be chosen.

[0057] Where applicable, the total amount of nonionic surfactants may range from approximately 0.01% to approximately 15%, such as up to approximately 12%, up to approximately 10%, up to approximately 8%, up to approximately 5%, up to approximately 3.5%, or up to approximately 2% by weight, relative to the total weight of the composition. For example, the total amount of nonionic surfactants may range from approximately 0.01% to approximately 10%, from approximately 0.1% to approximately 8%, from approximately 0.5% to approximately 6%, or from approximately 1% to approximately 4% by weight, relative to the total weight of the composition. In at least some embodiments, the compositions comprise at least one nonionic surfactant, and have a total amount of nonionic surfactants ranging from about 0.25% to about 5%, such as from about 0.5% to about 4%, from about 0.75% to about 3%, or from about 1% to about 2%, or may be about 0.25%, about 0.5%, of approximately 0.75%, approximately 1%, approximately 1.25%, approximately 1.5%, approximately 2%, approximately 2.5%, approximately 3%, approximately 3.5%, approximately 4%, approximately 4.5%, approximately 5.5%, approximately 6%, approximately 6.5%, approximately 7.5%, approximately 7.5%, approximately 8%, approximately 8.5%, approximately 9%, approximately 9.5%, or approximately 10% by weight, relative to the total weight of the composition, including any range using any of the preceding values ​​as upper and lower limits. In at least some embodiments, the compositions are free from or substantially free from nonionic surfactants. Cationic surfactants

[0058] In at least some embodiments, the compositions comprise at least one cationic surfactant, although in at least some embodiments, the compositions are free or substantially free of cationic surfactants. Non-limiting examples of cationic surfactants include amine-based or quaternary ammonium-based cationic compounds.

[0059] For example, cationic surfactants can be chosen from alkylpyridinium salts, imidazoline ammonium salts, diquaterary ammonium salts and ammonium salts containing at least one ester function.

[0060] Surfactants may be, for example, the salts (chloride or methyl sulfate) of diacyloxyethyldimethylammonium, diacyloxyethylhydroxyethylmethylammonium, monoacyloxyethyldihydroxyethylmethylammonium, triacyloxyethylmethylammonium, monoacyloxyethylhydroxyethyldimethylammonium, and mixtures thereof. The acyl radicals preferably contain 14 to 18 carbon atoms and are most particularly derived from a vegetable oil, for example, palm oil or sunflower oil. When the compound contains several acyl radicals, these radicals may be identical or different.

[0061] Other suitable cationic surfactants are esterquats, which are quaternary ammonium compounds having fatty acid chains containing ester bonds, such as, for example, dibehenoylethyl dimonium chloride, dipalmitoylethyl dimonium chloride, distearoylethyl dimonium chloride, disuifoyl PG-dimonium chloride, dipalmitoylethyl hydroxyethylmonium methosulfate, distearoylethyl hydroxyethylmonium methosulfate, or mixtures thereof.

[0062] Additional non-limiting examples of useful cationic surfactants include brassicamidopropyldimethylamine, behentrimonium chloride, cetrimonium chloride, behenalconium chloride, benzethonium chloride, cetylpyridinium chloride, behentrimonium chloride, lauralconium chloride, cetalconium chloride, cetrimonium bromide, cetylamine hydrofluoride, chlorallylmethenamine chloride (Quatemium-15), distearyldimonium chloride (Quaternium-5), and dodecyldimethylethylbenzylamine chloride. um (Quatemium-14), Quatemium-22, Quaternium-26, Quatemium-18 hectorite, dimethylaminoethyl chloride hydrochloride, cysteine ​​hydrochloride, diethanolammonium phosphate POE (10) oleylether, diethanolammonium phosphate POE (3) oleylether, alconium tallow chloride, dimethyldioctadecylammonium bentonite, stearalconium chloride, domiphene bromide, denatonium benzoate, myristalconium chloride, laurtrimonium chloride, ethylenediamine dihydrochloride, guanidine hydrochloride, pyridoxine HCl, iofetamine hydrochloride, meglumine hydrochloride, methylbenzethonium chloride, myrtrimonium bromide, chloride oleyltrimonium, polyquatemium-1, procaine hydrochloride, cocobetaine, stearalconium bentonite, stearalconium hectorite, stearyltrihydroxyethylpropylenediamine dihydrofluoride, suiftrimonium chloride, hexadecyltrimethylammonium bromide,Stearamidopropyldimethylamine, or combinations thereof.

[0063] Where applicable, the total amount of cationic surfactants may range from approximately 0.01% to approximately 15%, such as up to approximately 12%, up to approximately 10%, up to approximately 8%, up to approximately 5%, up to approximately 3.5%, or up to approximately 2% by weight, relative to the total weight of the composition. For example, the total amount of cationic surfactants may range from approximately 0.01% to approximately 10%, from approximately 0.1% to approximately 8%, from approximately 0.5% to approximately 6%, or from approximately 1% to approximately 4% by weight, relative to the total weight of the composition.In at least some embodiments, the compositions comprise at least one cationic surfactant, and have a total amount of cationic surfactants ranging from about 0.25% to about 5%, such as from about 0.5% to about 4%, from about 0.75% to about 3%, or from about 1% to about 2%, or may be about 0.25%, about 0.5%, about 0.75%, about 1%, about 1.25%, about 1.5%, about 2%, about 2.5%, about 3%, about 3.5%, about 4%, about 4.5%, about 5.5%, about 6%, about 6.5%, about 7.5%, about 7.5%, about 8%, about 8.5%, about 9%, about 9.5% or about 10% by weight, relative to the total weight of the composition, including any range using any of the preceding values ​​as upper and lower limits. In some embodiments, however, the compositions are free or substantially free of cationic surfactants. Clay compounds

[0064] The compositions according to the disclosure optionally include at least one clay compound, although in at least some embodiments the compositions are free or substantially free of clay compounds. In some embodiments, the compositions include more than one clay compound, for example, at least two clay compounds, etc. Without intending to be limiting, it is thought that the addition of one or more clay compounds may help prevent the re-oxidation of dyes, thus making color removal durable.

[0065] By way of non-limiting example, the clay compound may be selected from kaolinite (also referred to interchangeably as kaolin), bentonite, magnesium aluminum silicate, smectite, hectorite, vermiculite, illite, chorite, halloysite, palygorskite, sepiolite, sesquioxide, imogolite, allophane, or combinations of two or more of these. For example, in one embodiment, kaolin is selected. In another embodiment, bentonite is selected. In various embodiments, the clay compound comprises, consists essentially of, or consists of smectite, hectorite, kaolin, bentonite, magnesium aluminum silicate, or a combination of two or more of these.

[0066] Where appropriate, the total quantity of clay may range from about 0.1% to about 15%, from about 0.5% to about 12%, from about 1% to about 8%, or from about 2% to about 10% by weight, relative to the total weight of the composition. For example, the total amount of clay can range from approximately 1% to approximately 12%, from approximately 1% to approximately 11%, from approximately 1% to approximately 10%, from approximately 1% to approximately 9%, from approximately 1% to approximately 8%, from approximately 1% to approximately 7%, from approximately 1% to approximately 6%, from approximately 1% to approximately 5%, from approximately 1% to approximately 4%, from approximately 1% to approximately 3%, from approximately 1% to approximately 2%, from approximately 2% to approximately 12%, from approximately 2% to approximately 11%, from approximately 2% to approximately 10%, from approximately 2% to approximately 9%, from approximately 2% to approximately 8%, from approximately 2% to approximately 7%, from approximately 2% to approximately 6%, from approximately 2% to approximately 5%, from approximately 2% to approximately 4%, from approximately 2% to approximately 3%, from approximately 3% to approximately 12%, from approximately 3% to approximately 11%, from approximately 3% to approximately 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%, from about 3% to about 4%, from about 4% to about 12%, from about 4% to about 11%, 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%, from about 5% to about 12%, from about 5% to about 11%, from about 5% to about 10%, from about 5% to about 9%, from about 5% to about 8%, from about 5% to about 7%, from about 5% to about 6%, from about 6% to approximately 12%, from approximately 6% to approximately 11%, from approximately 6% to approximately 10%, from approximately 6% to approximately 9%, from approximately 6% to approximately 8%, from approximately 6% to approximately 7%, from approximately 7% to approximately 12%, from approximately 7% to approximately 11%, from approximately 7% to approximately 10%, from approximately 7% to approximately 9%, from approximately 7% to approximately 8%, from approximately 8% to approximately 12%, from approximately 8% to approximately 11%from approximately 8% to approximately 10%, from approximately 8% to approximately 9%, from approximately 9% to approximately 12%, from approximately 9% to approximately 11%, from about 9% to about 10%, from about 10% to about 12%, or from about 10% to about 11% by weight, relative to the total weight of the composition. For example, the total amount of clays may be about 1%, about 2%, about 3%, about 4%, about 5%, about 6%, about 7%, about 8%, about 9%, about 10%, about 11%, or about 12% by weight, relative to the total weight of the composition, including any range using any of the preceding values ​​as upper and lower limits.

[0067] By way of non-limiting example, the clay compound may comprise, consist essentially of, or consist of bentonite, kaolin, smectite, hectorite, or a combination of two or more of these, and the total amount of clays may be about 1%, about 2%, about 3%, about 4%, about 5%, about 6%, about 7%, about 8%, about 9%, about 10%, about 11%, or about 12% by weight, relative to the total weight of the composition, or it may be present in a range using any of the preceding values ​​as upper or lower limits. Fatty compounds

[0068] Optionally, the compositions according to the disclosure may include at least one fatty compound, although in at least some embodiments, the compositions may be free or substantially free of fatty compounds. 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 of these. In some embodiments, the compositions include at least one fatty compound of natural origin. In some embodiments, the compositions are free or substantially free of fatty compounds that are not of natural origin.In some embodiments, the compositions are free or essentially free of silicone fatty compounds.

[0069] Where appropriate, silicone oils may, for example, be selected from polydimethylsiloxanes (PDMS), polydimethylsiloxanes comprising alkyl or alkoxy groups that are pendant and / or at the end of the silicone chain, each of which groups contain from 2 to 24 carbon atoms, or phenylsilicones, such as phenyltrimethicones, phenyldimethicones, phenyl(trimethylsiloxy)diphenylsiloxanes, diphenyldimethicones, diphenyl(methyl-diphenyl)trisiloxanes, or (2-phenylethyl)trimethylsiloxysilicates. Non-limiting examples of silicone oils include dimethicone, amodimethicone, cyclomethicone, polysilicone-11, phenyltrimethicone, trimethylsilylamodimethicone, and stearoxytrimethylsilane. For example, the composition may include 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 combination of two or more of these.

[0070] In some embodiments, the compositions include a silicone oil component comprising, consisting essentially of, or consisting of dimethicone, amodimethicone, or a combination thereof. In some embodiments, the compositions are free or substantially free of silicone oils and / or silicone waxes.

[0071] In certain embodiments, the compositions according to the disclosure may include at least one fatty compound selected from fatty alcohols. Here, "fatty alcohol" may refer to any alcohol with a carbon chain of C5 or higher, such as, for example, C8 or higher, C10 or higher, or C12 or higher, such as from 6 to 30 carbon atoms or from 8 to 30 carbon atoms. Fatty alcohols may be alkoxylated or non-alkoxylated, saturated or unsaturated, and linear or branched. Non-limiting examples of fatty alcohols include 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 of these.In some preferred embodiments, the compositions include a fatty alcohol component which comprises, consists essentially of, or consists of cetyl alcohol, stearyl alcohol, cetearyl alcohol, or combinations thereof.

[0072] The useful, but not limiting, fatty acids may be straight-chain or branched-chain and / or may be saturated or unsaturated. Non-limiting examples of fatty acids include diacids, triacids, 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, arachidonic acid, oleic acid, isostearic acid, sebacic acid, or combinations thereof.

[0073] In certain embodiments, fatty acid esters or fatty alcohol esters may be chosen. Esters of saturated or unsaturated, linear or C1-C26 branched, linear or branched C1-C26, saturated or unsaturated, linear or branched C1-C26, aliphatic mono- or polyalcohols, the total carbon number of the esters being more particularly greater than or equal to 10, may be used by example. In other embodiments, esters of C4-C22 dicarboxylic or tricarboxylic acids and C1-C22 alcohols and esters of mono-, di- or tricarboxylic acids and C2-C26 di-, tri-, tetra- or pentahydroxyalcohols 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, methylacetyl ricinoleate, myristyle stearate, octyl isononanoate, 2-ethylhexyl isononanoate, the 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, myristyle or stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate, dioctyl malate, hexyl laurate, 2-hexyldecyl laurate, diethyl sebacate, diisopropyl sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, diisostearyl adipate, dioctyl maleate, glyceryl undecylenate, stearoyl stearate octyldodecyl, 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 one fatty alcohol ester, for example pentaerythrityl tetraisostearate.

[0074] Non-limiting examples of waxes that may be used include beeswax, hydrogenated olive alkyl esters, carnauba wax, candelilla wax, ouricoury wax, Japanese wax, cork fiber wax or sugar cane wax, rice wax, rice bran wax, montan wax, paraffin wax, lignite wax or microcrystalline wax, ceresin or ozokerite, palm kernel glycerides / hydrogenated palm glycerides, palm butter, sumac wax, citrus aurantium dulcis (orange) peel wax, theobroma grandiflorum seed butter, helianthus annuus (sunflower) seed wax, siliconyl candelilla wax, China wax, cetyl palmitate, lanolin, shellac, the spermaceti, cetyl esters, hydrogenated castor wax; triglyceride esters such as tribehenin (glyceryl tribehenate); synthetic waxes such as hydrocarbon waxes and polyethylene waxes obtained by the polymerization or copolymerization of ethylene, polypropylene waxes, or combinations of two or more of any of these waxes. However, in some embodiments, the compositions are free or essentially free of waxes.

[0075] In some embodiments, the composition may include fatty compounds selected from oils of animal, vegetable or mineral origin (for example, lanolin, squalene, fish oil, perhydrosqualene, mink oil, tortoiseshell 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, tamanu oil, macadamia oil, coconut oil, cereal germ oil, candlenut oil, thistle oil, candelilla oil, safflower oil, or shea butter), linear or branched hydrocarbons (for example, polybutene, polyisobutene) hydrogenated, polyisoprene, polydecenes such as hydrogenated polydecene, and / or linear alkanes,branched and / or cyclic fatty acids that are optionally volatile, such as, for example, isohexadecane, isododecane, isodecane or isohexadecane), optionally branched and / or unsaturated fatty acids (for example, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid or isostearic acid), fatty alcohols other than those described above (for example, alkoxylated fatty alcohols), mono- and / or polyesters of fatty acids and / or fatty alcohols (for example, mono- and polyesters of hydroxy acids and fatty alcohols, esters of benzoic acid and fatty alcohols, polyesters of polyols, C5-C9 dipentaerythrityl esters, trimethylolpropane polyesters, propylene glycol polyesters or castor oil polyesters) hydrogenated oils), perfluorinated and / or organofluorinated oils, fluorosilicone oils, or mixtures of two or more of these. In some embodiments, the compositions comprise at least one oil,For example, a mineral oil.

[0076] Where appropriate, the total amount of fatty compounds in the composition may range from approximately 0.01% up to approximately 15%, such as up to approximately 12%, up to approximately 10%, up to approximately 9%, up to approximately 8%, up to approximately 7%, up to approximately 6%, up to approximately 5%, or up to approximately 4% by weight, relative to the total weight of the composition. For example, the total amount of fatty compounds may range from approximately 0.1% to approximately 12%, from approximately 0.25% to approximately 10%, from approximately 0.5% to approximately 8%, from approximately 0.75% to approximately 6%, or from approximately 1% to approximately 5% by weight, relative to the total weight of the composition. In at least some embodiments, However, the compositions are free or essentially free of fatty compounds. Thickening agents

[0077] The compositions according to the disclosure optionally include at least one thickening agent. Useful thickening agents include, but are not limited to, semi-synthetic polymers, such as semi-synthetic cellulosic derivatives; synthetic polymers, such as carbomers, poloxamers and beheneth-25 acrylate / 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; associated particulate colloids, such as bentonite, colloidal silicon dioxide and microcrystalline cellulose; celluloses, such as hydroxyethylcellulose and hydroxypropylcellulose; and guars, such as hydroxypropyl guar.

[0078] 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 beheneth-25 acrylate / methacrylate copolymer, and non-limiting examples of anionic associative polymers include acrylate copolymer and acrylates-4 crosslinked polymer.

[0079] Where appropriate, the total quantity of thickening agents may range from about 0.001% to about 5%, such as from about 0.01% to about 4%, from about 0.1% to about 3.5%, from about 0.2% to about 3%, from about 0.3% to about 2.5% by weight, from about 0.4% to about 2%, from about 0.5% to about 1.5%, or from about 0.5% to about 1% by weight, relative to the total weight of the composition. Amino acids and aminosulfonic acids

[0080] The compositions may optionally include at least one amino acid and / or at least one aminosulfonic acid, although in at least some embodiments the compositions are free or essentially free of amino acids and / or aminosulfonic acids. Salts of amino acids and aminosulfonic acids may also be selected and are expressly included whether or not they are indicated.

[0081] Amino acids that may be selected include, for example, alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, Proline, serine, threonine, tryptophan, tyrosine, and valine. Examples of aminosulfonic 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, and aminohexylbenzenesulfonic acid. In some embodiments, the hair treatment compositions comprise at least one amino acid and at least one aminosulfonic acid. In some embodiments, the composition includes arginine, serine, betaine and / or taurine, for example arginine, betaine, or one of their combinations.For example, in some embodiments, arginine, serine, betaine and / or taurine are the only amino acids and aminosulfonic acids present in the compositions, and in some embodiments, arginine and / or betaine are the only amino acids and aminosulfonic acids present in the compositions.

[0082] Where appropriate, the total amount of amino acids and / or aminosulfonic acids may range from about 0.01% to about 10%, such as from about 0.1% to about 8%, or from about 0.5% to about 6% by weight, relative to the total weight of the composition.For example, in some embodiments, the total amount of amino acid(s) and / or aminosulfonic acid(s) may range from approximately 0.5% to approximately 5%, from approximately 0.5% to approximately 4%, from approximately 0.5% to approximately 3%, from approximately 0.5% to approximately 2.5%, from approximately 0.5% to approximately 2%, from approximately 0.5% to approximately 1.5%, from approximately 0.5% to approximately 1%, from approximately 0.75% to approximately 5%, from approximately 0.75% to approximately 4%, from approximately 0.75% to approximately 3%, from approximately 0.75% to approximately 2.5%, from approximately 0.75% to approximately 2%, from approximately 0.75% to approximately 1.5%, from approximately 0.75% to approximately 1%, from approximately 1% to approximately 5%, from about 1% to about 4%, from about 1% to about 3%, from about 1% to about 2.5%, from about 1% to about 2%, or from about 1% to about 1.5% by weight, relative to the total weight of the composition.In some embodiments, the total amount of amino acid(s) and / or aminosulfonic acid(s) may be approximately 0.25%, 0.5%, 0.75%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, or 10% by weight, relative to the total weight of the composition, including all ranges and subranges using any of the preceding values ​​as upper and lower limits. Organic amine compounds.

[0083] In some embodiments, the compositions optionally include at least one organic amine compound, although in at least some embodiments, the compositions are free or essentially free of organic amine compounds. Optionally, the compositions may include more than one organic amine compound, such as at least two organic amine compounds.

[0084] In various embodiments, alkanolamines, such as mono-, di-, or trialkanolamines, comprising one to three identical or different C1-C4 hydroxyalkyl radicals, may be used. By way of example, organic amines such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, N,N-dimethylethanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, tris(hydroxymethyl)aminomethane, guanidine, or combinations of two or more of these may be chosen.

[0085] Where appropriate, the total amount of organic amine compounds may range from about 0.01% up to about 15%, such as up to about 14%, up to about 13%, up to about 12%, up to about 11%, up to about 10%, up to about 9%, up to about 8%, up to about 7%, up to about 6%, up to about 5%, up to about 4.5%, up to about 4%, up to about 3.5%, up to about 3%, up to about 2.5%, or up to about 2% by weight, relative to the total weight of the composition. For example, the total amount of organic amine compounds may range from about 0.01% to about 12%, from about 0.1% to about 10%, from about 0.5% to about 8%, or from about 1% to about 6% by weight, relative to the total weight of the composition. In at least some embodiments, the compositions comprise at least one organic amine compound and have a total amount of organic amine compounds ranging from about 0.5% to about 12%, from about 0.5% to approximately 10%, from approximately 0.5% to approximately 8%, from approximately 0.5% to approximately 5%, from approximately 0.5% to approximately 4%, from approximately 0.5% to approximately 3%, from approximately 0.75% to approximately 12%, from approximately 0.75% to approximately 10%, from approximately 0.75% to approximately 8%, from approximately 0.75% to approximately 5%, from approximately 0.75% to approximately 4%, from approximately 0.75% to approximately 3%, from approximately 1% to approximately 12%, from approximately 1% to approximately 10%, from approximately 1% to approximately 8%, from approximately 1% to approximately 5%, from approximately 1% to approximately 4%, from approximately 1% to approximately 3%, from approximately 1.25% to approximately 12%, from approximately 1.25% to approximately 10% from approximately 1.25% to approximately 8%, from approximately 1.25% to approximately 5%, from approximately 1.25% to approximately 4%, from approximately 1.25% to approximately 3%, from approximately 1.5% to approximately 12%, from approximately 1.5% to approximately 10%, from approximately 1.5% to approximately 8%, from approximately 1.5% to approximately 5%, from approximately 1.5% to approximately 4%, or from approximately 1.5% to approximately 3%, by weight, relative to the total weight of the composition. In various modes, In realization, the total amount of organic amine compounds may be about 0.25%, about 0.5%, about 0.75%, about 1%, about 1.25%, about 1.5%, about 2%, about 2.5%, about 3%, about 3.5%, about 4%, about 4.5%, about 5%, about 5.5%, about 6%, about 6.5%, about 7%, about 7.5%, about 8%, about 8.5%, about 9%, about 9.5%, about 10%, about 10.5%, about 11%, about 11.5%, or about 12% by weight, relative to the total weight of the composition, or may be present in any range using any of the preceding values ​​as upper and lower limits. Auxiliary components

[0086] The compositions according to the disclosure may optionally include one or more auxiliary components. Non-limiting examples include preservatives, fragrances such as perfumes, pH adjusters, salts, antioxidants, vitamins (e.g., ascorbic acid, tocopherol), vitamin derivatives, botanical extracts, buffers, sequestering agents, and the like. In some embodiments, the compositions are free or essentially free of any of the aforementioned components; for example, the compositions may be free or essentially free of antioxidants, free or essentially free of ascorbic acid, etc.

[0087] The total quantity of auxiliary components, if any, typically ranges from about 0.01% to about 15% by weight, relative to the total weight of the composition.For example, in some embodiments, the individual quantities of each component or the total quantity of components may range from approximately 0.1% to approximately 10%, from approximately 0.1% to approximately 8%, from approximately 0.1% to approximately 5%, from approximately 0.1% to approximately 4%, from approximately 0.1% to approximately 3%, from approximately 0.1% to approximately 2%, from approximately 0.25% to approximately 10%, from approximately 0.25% to approximately 8%, from approximately 0.25% to approximately 5%, from approximately 0.25% to approximately 4%, from approximately 0.25% to approximately 3%, from approximately 0.25% to approximately 2%, from approximately 0.5% to approximately 10%, from approximately 0.5% to approximately 8%, from approximately 0.5% to approximately 5%, from approximately 0.5% to approximately 4%, from approximately 0.5% to about 3%, from about 0.5% to about 2%, from about 0.75% to about 10%, from about 0.75% to about 8%, from about 0.75% to about 5%, from about 0.75% to about 4%, from about 0.75% to about 3%, or from about 0.75% to about 2% by weight, relative to the total weight of the composition.

[0088] In some embodiments, the compositions may be free or substantially free of one or more of the following: ascorbic acid and its salts, hair dyes or pigments, persulfates, peroxides, and / or ammonia. In still other embodiments, the compositions may comprise less than 5%, less than 4.5%, less than 4%, less than 3.5%, less than 3%, less than 2.5%, less than 2%, less than 1.5%, less than 1.25%, less than 1%, less than 0.75%, less than 0.5%, less than 0.4%, less than 0.3%, less than 0.2%, less than 0.1%, less than 0.05% or less than 0.01% of a total amount of ascorbic acid and its salts, persulfates, peroxides or ammonia, or a total amount of any combination of two or more of these.

[0089] The compositions can be in any suitable form. For example, the compositions can be a liquid, a gel, a cream-gel, a cream, a serum, etc. Advantageously, the compositions can be used as a one-part hair color removal composition, as opposed to known hair color removal systems that require the application of several compositions to effectively remove hair color.

[0090] The pH of the composition is typically acidic, namely less than 7. For example, compositions may have a pH ranging from about 1 to about 7, such as from about 2.5 to about 6.5. In some embodiments, the compositions have a pH ranging from about 2.5 to about 5, from about 2.75 to about 4.75, from about 3 to about 4.5, or from about 3 to about 4. For example, the pH of the composition may be about 3, about 3.25, about 3.5, about 3.75, about 4, about 4.25, or about 4.5. II. PROCESSES

[0091] In various embodiments, the disclosure relates to processes for modifying the color, tone, and / or shade of hair. The compositions and processes can be used to remove some or all of certain dyes, while having minimal or no impact on other dyes. As such, the compositions can be intended to remove certain hair dyes to achieve the result desired by the consumer. For example, the processes may include processes for increasing the warmth of a hair color, for example, by targeting the removal of dyes that produce a cooler color. As a further example, the processes may include processes for enhancing cool tones by targeting dyes for removal that produce a warmer color.

[0092] It is understood by those skilled in the art that the color, tone, and shade of the hair are evaluated using the CIE L* a* b* system. In this system, the change in color, tone, and / or shade is determined by evaluating the hair color after treatment (L*2, a*2, b*2) against the hair color before treatment (L*ba*bb*i). The overall color change (AE) is defined by: = ,'ÿ (Lg4- (“«g ■■ ni)-* 4-

[0093] In this system, the three parameters represent, respectively, the color intensity (L*), the green / red color axis (a*) (for example, a higher a* is redder), and the blue / yellow color axis (b*) (for example, a higher b* is yellower). The higher the value of L*, the lighter the color; the higher the value of a*, the redder the color; and the higher the value of b*, the yellower the color. Furthermore, the higher the value of AE, the greater the difference in color between the treated hair and the hair before treatment. Thus, the processes may include modifying the color, tone, and / or shade of the hair by varying the values ​​of L*2, a*2, and / or b*2, and / or by increasing the AE value relative to the hair before treatment.

[0094] The compositions and processes are thus capable of obtaining a desired hair color, tone, and / or shade even without the application, or with minimal application, of subsequent hair coloring compositions. However, although the hair color, tone, and / or shade can be modified using the compositions and processes according to the disclosure, in at least some embodiments, the processes include an additional step of coloring or shading the hair after the hair treatment according to the disclosure.

[0095] The disclosure further relates to processes for removing artificial color from keratin fibers, particularly hair that has been previously dyed with an oxidative dye. In particular, the compositions and processes according to the disclosure are especially useful for removing darker hair colors that may otherwise be difficult to remove with traditional hair color removal compositions that do not use oxidizing agents. By way of non-limiting example, darker colors that can be removed in the processes according to the disclosure include blacks, ash browns, chestnuts, ash mochas, natural ash (blue or green), ash violets, violets, red violets, reds, red mochas, red chestnuts, mahogany, red coppers, coppers, and golds.

[0096] The methods include applying a composition as disclosed to keratin fibers, for example, hair that has been previously dyed with at least one oxidative dye compound, optionally leaving the composition on the keratin fibers for a period of time (“processing time,” “resting time,” or “application time”), and subsequently rinsing or removing the composition from the keratin fibers. Thus, the methods may include a two-step process, which is simpler and more efficient than known three-step or more-step processes where multiple compositions are applied to the hair for color removal before rinsing.

[0097] The appropriate application time will be determined according to the color to be removed, and in various embodiments may last up to approximately 5 minutes, up to approximately 10 minutes, up to approximately 20 minutes, up to approximately 30 minutes, up to approximately 45 minutes, up to approximately 1 hour, up to approximately 2 hours, etc., such as from approximately 1 minute to approximately 60 minutes, from approximately 2 minutes to approximately 50 minutes, from approximately 5 minutes to approximately 45 minutes, or from approximately 10 minutes to approximately 40 minutes. It may be advantageous, in various embodiments, to leave the color-removing composition on the hair for at least approximately 15 minutes, and up to approximately 60 minutes. For example, the application time may range from approximately 15 minutes to approximately 60 minutes, from approximately 20 minutes to approximately 60 minutes, or from approximately 25 minutes to approximately 60 minutes.Optionally, the hair can be covered, for example with a treatment cap or aluminum foil, for at least part of the application period.

[0098] Optionally, the hair to which a composition according to the disclosure has been applied may be heated during the processing time. For example, the hair may be heated using a hair dryer, a hair dryer hood, or any other method for at least part of the processing time. The hair may be heated using temperatures above room temperature, for example, from about 27°C to about 90°C, from about 30°C to about 80°C, from about 35°C to about 70°C, or from about 40°C to about 50°C. For example, a heating temperature range could be from about 40°C to about 45°C, such as from about 40°C to about 43°C.

[0099] In various embodiments, it may be advantageous to heat the treated hair for at least part of the processing time, or to leave it unheated for at least part of the processing time. For example, after applying the color-removing composition to the hair, the treated hair may be left to process for a period of time at room temperature, followed by a period of time with heat applied. As an alternative example, after applying the color-removing composition to the hair, the treated hair may be heated, followed by a period of time during which the hair is processed at room temperature.Other variations of these processes, consisting of alternating heating the treated hair and leaving the treated hair at room temperature, may be used, such as, for example, heating followed by room temperature followed by heating, or treatment at room temperature followed by heating followed by treatment at room temperature, and so on.

[0100] Surprisingly, the compositions and processes disclosed effectively alter hair color and / or remove hair color without the use of oxidizing agents, persulfates, peroxides and / or ammonia, and without the damage that is typically associated with color removal compositions containing these components.

[0101] It should be understood that the compositions according to the disclosure are not hair coloring compositions. As such, the compositions are free or substantially free of dyes or pigments for coloring hair, in particular oxidative dye compounds. The compositions may optionally include a dye or pigment for coloring the composition, but it will be understood that the amount and / or type of dye or pigment will be chosen so as not to impart color to hair. Similarly, the processes according to the disclosure are not processes for imparting color to hair.

[0102] After describing in detail the numerous embodiments of the present invention, it will become apparent that modifications and variations are possible without departing from the scope of the disclosure defined in the appended claims. Furthermore, it should be noted that all the examples in this disclosure, while illustrating numerous embodiments of the disclosure, are provided by way of non-limiting examples and should therefore not be considered as limiting the various aspects thus illustrated. It should be understood that all definitions in this document are provided only within the meaning of this disclosure.

[0103] As used herein, the terms "comprising", "having" and "including" (or "comprehension", "having" and "include") are used in their open, non-limiting sense.

[0104] The expressions "one or more" and "at least one" are interchangeable and expressly include individual components as well as mixtures / combinations. Similarly, the expression "one of its / their salts" also refers to "its / their salts." Thus, when the disclosure refers to "at least one element selected from the group consisting of A, B, C, D, E, F, one of their salts or mixtures thereof," it indicates that one or more elements from A, B, C, D, and F may be included, that one or more salts from a salt of A, a salt of B, a salt of C, a salt of D, a salt of E, and a salt of F may be included, or that a mixture of any two elements from A, B, C, D, E, F, a salt of A, a salt of B, a salt of C, a salt of D, a salt of E, and a salt of F may be included.

[0105] The expression "and / or" should be understood as including both conjunctive and disjunctive clauses. For example, "water and / or non-aqueous solvents" means "water and non-aqueous solvents" as well as "water or non-aqueous solvents", and expressly covers cases of either.

[0106] As used herein, the expressions "and their mixtures", "and one of their mixtures", "and their combinations", "and one of their combinations", "or their mixtures", "or one of their mixtures", "or their combinations" and "or one of "Their combinations" are used interchangeably to indicate that the list of components immediately preceding the expression, such as "A, B, C, D, or mixtures thereof," means that the component(s) may be chosen from A, B, C, D, A + B, A + B + C, A + D, A + C + D, etc., without limitation as to their variations. Thus, the components may be used individually or in any of their combinations.

[0107] For the purposes of this disclosure, it should be noted that, for the sake of conciseness, some of the quantitative expressions given herein are not qualified with the term "approximately". It is understood that, whether the term "approximately" is used explicitly or implicitly, each quantity given herein is intended to refer to the actual value given, and is also intended to refer to the approximation of that value given that would be reasonably deduced by a person skilled in the art, including approximations due to experimental and / or measurement conditions for that value.

[0108] All ranges and quantities stated herein are deemed to include subranges and quantities using any disclosed point as a bound, and all bounds are deemed to be inclusive unless expressly stated otherwise. Thus, a range of "1% to 10%, such as 2% to 8%, such as 3% to 5%" is deemed to encompass ranges of "1% to 8%", "1% to 5%", "2% to 10%", and so on. All numbers, quantities, ranges, etc., are deemed to be modified by the term "approximately", whether or not expressly stated, unless expressly stated otherwise. Similarly, a given range of "approximately 1% to 10%" is deemed to have its bounds of both 1% and 10% modified by the term "approximately". Unless expressly stated otherwise, "approximately" means + / - 5%.Similarly, all range boundaries are understood as being disclosed individually, such that, for example, a range of 1:2 to 2:1 is understood as disclosing a ratio of 1:2 and 2:1.

[0109] As used here, if a component is described as being present "in an amount up to" a certain amount, it is expected that this component will actually be present in the composition, namely, present in an amount greater than 0%.

[0110] All quantities and ratios stated herein are given on a weight-for-weight basis, unless otherwise stated. Unless otherwise stated, all percentages herein are given by weight of active ingredient.

[0111] As used herein, the expression "apply a composition to keratinous fibers," and its variations, is intended to mean bringing keratinous fibers, such as hair, into contact with at least one of the compositions in the disclosure, in any manner whatsoever. It may also mean bringing the keratinous fibers into contact with an effective amount of the composition.

[0112] As used herein, the term “salts” throughout the disclosure may include salts having a counterion such as an alkali metal, alkaline earth metal, or ammonium counterion. This list of counterions, however, is not exhaustive. Salts also include a dissociated form of a compound, for example, in an aqueous solution.

[0113] Unless otherwise defined for any specific embodiment, the expression "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, relative to 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.As such, it is envisaged that any component described herein for use in compositions may be present in the compositions in quantities less than approximately 5%, less than approximately 4%, less than approximately 3%, less than approximately 2%, less than approximately 1%, less than approximately 0.5%, less than approximately 0.1%, less than approximately 0.01%, less than approximately 0.001%, or less than approximately 0.0001%, and the composition shall be considered "substantially free" of such material. A composition "free" of a component is deemed to contain no quantity of the specified component. However, it is understood that the terms "free" and "substantially free" refer to the quantity of a component added to the composition, without including any quantity of the component present in the composition as a minor component in a raw material.For example, a "wax-free" composition may not have wax included as an intended component, but may nevertheless contain a pigment that is coated with a wax, since such a wax would be considered a minor component of the pigment material and should not provide benefits to the composition that would be expected from including a wax itself as an intended component.

[0114] As used herein, the terms “treat,” “treated,” “treatment,” and their variations are not intended to be limiting, but rather are intended to simply indicate that one or more compositions are applied to the hair and optionally removed from the hair. For example, hair that is “treated” with a composition according to the disclosure may have had the composition applied, and / or may have had the composition applied and removed, for example, by rinsing or towel drying. By way of further example, hair that is “treated” with a composition according to the disclosure may have had the composition applied, and / or may have had the hair composition applied and rinsed.

[0115] As used herein, the expressions "alter hair color," "hair color modification," and their variations mean that the color, tone, and / or shade of the hair is changed by removing previously applied hair dyes from the hair. Furthermore, the expressions "color removal," "hair color removal," and their variations should be understood as referring to the removal of some or all of the hair dyes previously applied to the hair. It should be understood that the removal of artificial color may include the removal of all the color, or may include the removal of various shades of color.Therefore, in some embodiments, an overall change in hair color will be observed (e.g., higher AE), whereas in other embodiments, even if the overall color change is not considered significant, a variation in one or more of the L*, a*, or b* values ​​will be observed.

[0116] As used herein, "artificial color" means a color that has been imparted to the hair by means of a prior application of a composition capable of changing the color of the hair, for example with permanent, semi-permanent, or quasi-permanent hair dye compositions. In various embodiments, the artificial color that is removed from the hair is a color that has been imparted to the hair by one or more oxidative dye compounds.

[0117] As used herein, the expressions "odorless", "minimal odor", "odorless", "reduced odor" or similar are intended to refer to the odor that is typically associated with color-removing compositions containing thiolactic acid-based color removers, an odor that hair coloring professionals and consumers typically find acrid and / or nauseating.

[0118] As used herein, the expression "thiol-based" is used in its ordinary meaning to signify that the compound has an R-SH (thiol) group, where R is an alkyl group or other organic substituent.

[0119] The following examples are intended to illustrate embodiments of this disclosure but are not intended to be limiting. It will be obvious to those skilled in the art that various modifications and variations can be made to the compositions and processes of the invention without departing from the spirit or scope of the invention. EXAMPLES

[0120] The following examples are intended to be non-limiting and explanatory only. In the Examples, unless otherwise indicated, quantities are expressed percentage by weight (% by weight) of active ingredients, relative to the total weight of the composition.

[0121] In these examples, the hair color change is evaluated using the CIE L* a* b* system with Colorshot MS, where the change is determined by evaluating the hair color after treatment (L*2, a*2, b*2) against the hair color before treatment (L*ba*bb*i). The color change (AE) is calculated as follows:

[0122] ^■£«6 ='Ÿ ^"2 *“ ^1)^' "É + -- J" Example 1 - Compositions

[0123] Compositions 1A-1B according to disclosure and comparative compositions C1-C2 were prepared as shown in Table 1. The pH of each of the compositions was less than 7.

[0124] [Table 1] - Hair colour remover compositions IA IB Cl C2 Thickeners 0.7 0.7 0.7 0.7 Ethanolamine 3.0 3.0 3.3 3.3 Ketoglutaric acid 10.0 10.0 10.0 10.0 Arginine 3.0 3.0 3.0 3.0 Thiosalicylic acid 5.0 5.0 Thiolactic acid 5.0 5.0 Sodium hyaluronate 2.5 2.5 Non-ionic surfactants 1.5 1.5 1.5 1.5 Fragrance 1.0 1.0 1.0 1.0 Solvents (water and non-aqueous solvents) Qs per 100 Qs per 100 Qs per 100 Qs per 100

[0125] Example 2 - Evaluation of color removal

[0126] The following studies were carried out to evaluate the effectiveness of the compositions as disclosed in removing color and changing the color, tone and / or shade of hair that has been previously dyed with oxidative hair dye compositions.

[0127] Strands of gray hair permed to ~90% were colored with one of two commercially available oxidative hair dye compositions, each having different combinations of oxidative dye compounds (2 (studies, 5 strands per study, 10 strands in total). The oxidative hair dye composition was mixed in a 1:1 ratio with 20V hydrogen peroxide developer to form a hair dye mixture, and the hair dye mixture was applied to the strands at a rate of approximately 3 grams per gram of hair. The strands were left at room temperature for approximately 35 minutes, rinsed, washed with a commercial shampoo, rinsed again, and left to air dry.

[0128] Once the strands were dry, four of the five strands in each study were treated as follows. One of the compositions IA, IB, Cl, or C2 was applied to one strand from each set at a rate of approximately 2 grams per gram of hair. After the strands were left in treatment for 30 minutes at 33°C, they were rinsed for approximately 30 seconds, washed with a commercial shampoo, rinsed again, shampooed again, rinsed again, and then blow-dried. One strand per study was not treated with a color-removing composition and served as the color control.

[0129] The color of each strand was then evaluated using the CIE L* a* b* system to assess color removal efficiency. Table 2 presents the AE values ​​for the treated strands, compared to the color control. [Table 2] - Measured AE Results CONTROL IA C2 IB Cl Study 1 - 27.50 14.23 9.98 8.41 Study 2 - 48.25 31.10 45.17 34.11

[0131] The results in Table 2 demonstrate that oxidative hair dye is more effectively removed with compositions IA and IB, as disclosed, which contain hyaluronic acid in addition to the color-removing agents. The differences in AE between hair treated with compositions IA or C2 in Studies 1 and 2, and compositions IB or Cl in Study 2, are considered statistically significant. It was observed that AE values ​​were lower for Study 1, indicating that the combination of oxidative dye compounds used in the dyeing process is particularly resistant to color removal. However, since a greater increase in AE was nevertheless obtained in hair treated with composition IB compared to Cl in Study 1, the results of this comparison also confirm that the addition of hyaluronic acid increases color removal.

[0132] These data demonstrate that the addition of hyaluronic acid to color removal compositions surprisingly provides more effective hair color removal. Example 3 - Odour Control Evaluation

[0133] In accordance with the way such assessments are generally carried out, the performance of the odor control was evaluated olfactorily by a panel of perfume experts (n = 6) who assessed the odor of compositions 1A-1B and C1-C2 and ranked each of them according to the criteria in Table 3A. [Table 3A] - Scoring Criteria Odor Rating Criteria: 1 Very unpleasant 2 Unpleasant, less intense 3 Tolerable, some unpleasant odor 4 Pleasant, slight unpleasant odor 5 Pleasant, no unpleasant odor

[0135] The results of the odor evaluation are shown in Table 3B. [Table 3B] - Results Panelist Rating IA C2 IB Cl 1 4 3.5 4 4.5 2 3 3.5 4.5 4 3 3 2.5 4.25 4 4 2 1 4 3 5 2 1 4 4.5 6 2 3 4 3.7 Average 2.67 2.41 4.13 3.95

[0137] The data in Table 3 show that the addition of hyaluronic acid to a thiol-based color-eliminating composition unexpectedly reduces the bad odor that is commonly associated with such compositions.

[0138] The results of Examples 2 and 3 together demonstrate that the color-removing compositions disclosed effectively remove artificial hair color while minimizing the foul odor typical of traditional hair color removal compositions and processes. These results are surprising because it was not previously known that hyaluronic acid was useful in enhancing the effectiveness of hair color-removing agents, or that its use would provide additional beneficial effects such as odor reduction. Example 4 - Additional Compositions

[0139] Compositions 2A-2D can also be prepared as shown in Table 4, and are also expected to offer similar benefits in terms of hair colour removal and odor reduction.

[0140] [Tables4] 2A 2B 2C 2D Thiosalicylic Acid 5.0 2.0 Thiolactic Acid 4.0 8.5 Sodium Hyaluronate 3.0 1.5 1.0 4.5 Arginine 2.5 1.0 1.5 Betaine 1.9 1.6 Proline 0.5 Xanthan Gum 0.7 0.7 Hydroxypropyl Cellulose 1.5 1.0 Bentonite 5.0 Kaolin 3.0 Ethanolamine 3.7 1.0 Aminomethyl Propanol 4.5 Glycolic Acid 2.5 1.0 Sodium Lauryl Sulfate 5.0 5.0 Sodium Lauryl Methyl Isethionate 2.5 7.5 Citric Acid 5.0 GLYOXYLIC ACID 12.0 α-KETOGLUTARIAC ACID 10.0 2.0 FAT COMPOUNDS (silicone oils or vegetable oils) 1.5 5.0 ADDITIVES (fragrances, pH adjuster, vitamins, plant extracts, preservatives, etc.) <5 <5 <5 <5 SOLVENTS Qs per 1 Qs per 1 Qs per 1 Qs per 1 (water and non-aqueous solvents) 00 00 00 00

[0141] The above examples demonstrate that the compositions and processes according to the disclosure effectively remove oxidative hair dyes from hair, while minimizing or remarkably reducing the unpleasant odor associated with the process.

[0142] The Examples also demonstrate that the compositions and processes effectively remove various oxidative hair dyes from hair, making it possible to change the color, tone and / or shade of hair in a controlled manner, and are particularly useful for removing darker colors, which tend to be removed with more difficulty with color-removing agents that are not oxidizing agents.

Claims

Demands

1. Hair color removal composition comprising: a. at least one hair color removal agent selected from thiosalicylic acid and / or its salts, thiolactic acid and / or its salts, thioglycolic acid and / or its esters, glutaric acid and / or its salts, glyoxylic acid and / or its salts, citric acid and / or its salts, or combinations of two or more of these; b. hyaluronic acid and / or one of its salts; c. at least one solvent; and d. optionally at least one organic acid and / or one of its salts.

2. Hair colour removal composition according to claim 1, comprising at least one hair colour removal agent selected from thiosalicylic acid, thiolactic acid and / or their salts.

3. Hair colour removal composition according to claim 1 or claim 2, wherein the total amount of (a) colour removal agents ranges from 0.5% to 20%, preferably from 1% to 18%, more preferably from 2% to 15%, most preferably from 2% to 10% by weight, relative to the total weight of the composition.

4. Hair colour removal composition according to any one of claims 1 to 3, wherein the total amount of (b) hyaluronic acid and its salts ranges from 0.1% to 10%, preferably from 0.5% to 8%, more preferably from 0.75% to 6%, most preferably from 1% to 5% by weight, relative to the total weight of the composition.

5. Hair color removal composition according to any one of claims 1 to 4, comprising (d) at least one organic acid selected from ketoacids and their salts, wherein the total amount of ketoacids and their salts ranges from 0.1% to 20%, preferably from 1% to 20%, more preferably from 3% to 15%, most preferably from 5% to 15% by weight, relative to the total weight of the composition.

6. Hair color removal composition according to any one of claims 1 to 5, further comprising at least an additional component chosen from surfactants, clays, fatty compounds, amino acids and / or their salts, aminosulfonic acids and / or their salts, organic amine compounds, or combinations of two or more of these.

7. Hair colour removal composition according to any one of claims 1 to 6, wherein the composition has a pH from 1 to 6, preferably from 2.5 to 5, more preferably from 3 to 4.5, most preferably from 3 to 4.

8. Method for removing artificial hair color from hair, the method comprising applying to the hair a hair color removal composition according to any one of claims 1 to 7.

9. A method according to claim 8, wherein the composition comprises at least one hair color-removing agent selected from thiosalicylic acid, thiolactic acid and / or their salts, and at least one keto acid and / or its salts.

10. A method according to claim 8 or claim 9, wherein the composition is left on the hair for a period of time from 1 minute to 60 minutes, preferably from 2 minutes to 50 minutes, more preferably from 5 minutes to 45 minutes, most preferably from 10 minutes to 40 minutes, the hair is optionally heated, and then the composition is rinsed from the hair.