Personal care composition

Abstract

The present invention relates to personal care composition comprising: - at least one amphoteric surfactant, - at least one cationic conditioning polymer and - optionally, at least one anionic surfactant, provided that when said at least one anionic surfactant is present, the weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant is greater or equal to 1:1, wherein said composition comprises less than 3% by weight of salts, with respect to the total weight of the composition, and less than 20% by weight of said salts, with respect to the total weight of said at least one amphoteric surfactant.

Description

[0001] PERSONAL CARE COMPOSITION

[0002] FIELD OF THE INVENTION

[0003] The present invention belongs to the technical field of personal care compositions, notably of hair care compositions. In particular, the invention relates to a personal care composition for improving hair manageability. The invention is particularly adapted for curly or textured hair, notably for improving hair styling, curl definition and curl retention.

[0004] BACKGROUND OF THE INVENTION

[0005] Many people are dissatisfied with the appearance of their hair, and desire to treat their hair to improve the appearance and / or feel thereof. Consumers primarily use hair care products formulated for their hair texture and style and expect to achieve their desired result.

[0006] For instance, curly hair consumers may have concerns that the curls are not sufficiently defined. People having curly hair may desire to maintain the curls and may also desire to gain better curl definition and / or regularity, and to improve curl retention. Further, curly hair consumers willing to straighten their hair are usually concerned about the durability of their "styling" over humidity and over time, because of the tendency of curly hair to frizz.

[0007] Increasingly, consumers also seek hair products that have a natural look and feel, while imparting good styling benefits to hair. Consumers also seek products that offer multiple benefits, for example, combining frizz reduction and style hold with softening (i.e. not “crunchy” feeling), elongation or lengthening effects while still providing good curl definition.

[0008] As such, there is a need for new and improved products and methods for treating keratin fibers, in particular human keratin fibers such as curly or wavy hair, which may make it possible to deliver visible and / or lasting curl definition, and / or maintain curls while obtaining good curl definition and / or regularity, particularly under humid conditions, and at the same time impart one or more various additional properties to the hair such as better movement, good volume, frizz control, softness, smoothness, and / or natural shape, and which may be long- lasting, non-irritating, and / or non-toxic.

[0009] The present disclosure addresses these concerns by providing personal care compositions, notably hair care compositions, specifically adapted to curly and / or textured hair and that deliver benefits such as improved curl definition and / or curl regularity, and additional caring and conditioning benefits, such as smoothness, frizz and fly-away control, volume control, shine and discipline.

[0010] As residual by-products obtained during the synthesis of surfactants or intentionally added, salts (such as NaCI) are usually present in personal care compositions because of their ability to build viscosity. However, too much salt causes clarity & stability issues. This is especially evident when the formula incorporates cationic polymers to provide conditioning benefits, naturally-derived thickening polymers with limited salt tolerance or surfactants such as Sodium Cocoyl Isethionate, that can phase out in the presence of too much sodium chloride. To solve this problem, Ultra-Low Salt (ULS) grade surfactants have been developed. In particular, ULS grade are known to be used in sulfate-free formulations to improve clarity, viscosity and stability.

[0011] In this respect, US 11 ,607,373 describes personal cleansing compositions comprising a cationic deposition polymer and a surfactant system, while having a level of salts inferior or equal to 1 wt%. Limiting the level of salts prevents undesired coacervate formations in product while on the shelf (before use).

[0012] US 2004 / 186264 describes hair colorant compositions comprising amphoteric surfactants and comprising less than 15% by weight of sodium chloride, based on the weight of amphoteric surfactants. The low content of salts allows promoting the uptake of dye by hair.

[0013] However, none of these documents is concerned with direct potential benefits for consumer. In particular, none of these documents is concerned with hair esthetic and / or visual and / or styling improvements. More particularly, none of these documents is concerned with improving the manageability of curly hair, notably the curl definition and / or frizz control of curly hair.

[0014] The inventors have surprisingly discovered that the association in a personal care composition, notably in a hair care composition, of an amphoteric surfactant and a cationic conditioning polymer, while maintaining a low level of residual salts in the composition (typically less than 3% by weight, with respect to the total weight of the composition), allows improving hair styling and / or discipline and / or manageability. In particular, the composition of the invention allows improving curly hair styling, curly hair definition, anti-frizz effect but also curl retention of hair. The compositions of the invention are typically prepared (at least partially) from Ultra Low Salt grade surfactants.

[0015] SUMMARY OF THE INVENTION

[0016] The invention firstly relates to a personal care composition comprising:

[0017] - at least one amphoteric surfactant,

[0018] - at least one cationic conditioning polymer,

[0019] - optionally, at least one anionic surfactant, provided that when said at least one anionic surfactant is present, the weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant is greater or equal to 1 :1 , wherein said composition comprises less than 3% by weight of salts, with respect to the total weight of the composition, and less than 20% by weight of said salts, with respect to the total weight of said at least one amphoteric surfactant.

[0020] Preferably, the amphoteric surfactant is chosen from the group consisting of betaine surfactants, alkyl amphoacetate surfactants, alkyl amphodiacetate surfactants sultaines surfactants and mixtures thereof, preferably from alkyl dimethyl betaines, lauramidopropyl betaine, cocoamidopropyl betaine, and any combinations thereof, more preferably chosen from alkyl dimethyl betaines, even more preferably is coco betaine.

[0021] According to an embodiment of the invention, the personal care composition of the invention comprises at least one anionic surfactant chosen from the group consisting of sodium, ammonium or potassium salts of isethionates; sodium, ammonium or potassium salts of sulfonates; sodium, ammonium or potassium salts of ether sulfonates; sodium, ammonium or potassium salts of sulfosuccinates; sodium, ammonium or potassium salts of sulfoacetates; sodium, ammonium or potassium salts of glycinates; sodium, ammonium or potassium salts of sarcosinates; sodium, ammonium or potassium salts of glutamates; sodium, ammonium or potassium salts of alaninates; sodium, ammonium or potassium salts of carboxylates; sodium, sodium, ammonium or potassium salts of taurates; sodium, ammonium or potassium salts of phosphate esters; and combinations thereof, preferably from sodium salts of taurates, more preferably from sodium methyl cocoyl taurate, sodium methyl oleyl taurate and combinations thereof. Preferably, the cationic conditioning polymer is chosen from cationic guar polymers, cationic non-guar galactomannan, synthetic cationic polymers, cationic cellulose polymers and combinations thereof, preferably is chosen from the group consisting of: guar hydroxypropyl trimonium chloride, hydroxypropyl guar hydroxypropyl trimonium chloride, polymethacrylamido-propyltrimonium halides, salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, and combinations thereof.

[0022] According to a preferred embodiment, the weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant ranges from 1 :1 to 10:1 , preferably from 1 :1 to 5:1.

[0023] Preferably, the personal care composition of the invention comprises less than or equal to 2% by weight of salts, with respect to the total weight of the composition.

[0024] Preferably, the salts are chosen from the group consisting of: ammonium and / or alkali and / or alkaline-earth halides, ammonium and / or alkali and / or alkaline-earth sulfates, ammonium and / or alkali and / or alkaline-earth sulfonates, ammonium and / or alkali and / or alkaline-earth phosphates, ammonium and / or alkali and / or alkaline-earth phosphonates, and any combinations thereof.

[0025] Preferably, the personal care composition of the invention comprises less than or equal to 20% by weight of surfactants, with respect to the total weight of the composition, preferably less than 15% by weight.

[0026] Preferably, the personal care composition of the invention a pH value inferior or equal to 6.5, preferably ranging from 4.5 to 6.5.

[0027] According to a preferred embodiment, the personal care composition is a hair care composition, preferably a shampoo composition or a foaming composition for styling.

[0028] The invention also relates to the use of a personal care composition as defined above and in much more details hereafter for improving hair manageability.

[0029] Preferably, the invention relates to the use of a personal care composition as defined above and in much more details hereafter for improving at least one of the following aspects of hair, preferably of curly and / or textured hair:

[0030] - hair styling, notably curly and / or textured hair styling,

[0031] - hair definition, notably curly and / or textured hair definition, - curl retention of hair,

[0032] - frizz and fly-away control,

[0033] - hair shine, and

[0034] - hair volume control.

[0035] DETAILED DESCRIPTION

[0036] Throughout the description, the expression “alkyl” means a saturated straight chain, branched chain or cyclic hydrocarbon radical, including but not limited to methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, t-butyl, pentyl, -hexyl and cyclohexyl.

[0037] As used herein, the term "aryl" means a monovalent unsaturated hydrocarbon radical containing one or more six-membered carbon rings in which the unsaturation may be represented by three conjugated double bonds, which may be substituted one or more of carbons of the ring with hydroxy, alkyl, alkenyl, halo, haloalkyl, or amino, including but not limited to, phenoxy, phenyl, methylphenyl, dimethylphenyl, trimethylphenyl, chlorophenyl, trichloromethylphenyl, aminophenyl, and tristyrylphenyl.

[0038] As used herein, the term "alkylene" means a divalent saturated straight or branched chain hydrocarbon radical, such as for example, methylene, dimethylene, trimethylene.

[0039] As used herein, the term "alkoxyl" means an oxy radical that is substituted with an alkyl group, such as for example, methoxyl, ethoxyl, propoxyl, isopropoxyl, or butoxyl, which may optionally be further substituted on one or more of the carbon atoms of the radical.

[0040] As used herein, the term "alkoxyalkyl" means an alkyl radical that is substituted with one or more alkoxy substituents, more typically a (Ci- C22)alkyloxy-(Ci-Ce)alkyl radical, such as methoxym ethyl, and ethoxybutyl.

[0041] As used herein, the term "alkenyl" means an unsaturated straight or branched hydrocarbon radical, more typically an unsaturated straight, branched, (which, in one particular embodiment, is C1-C75) hydrocarbon radical, that contains one or more carbon-carbon double bonds, such as, for example, ethenyl, n-propenyl, isopropenyl.

[0042] As used herein, the term "arylalkyl" means an alkyl group substituted with one or more aryl groups, more typically a (Ci-Cis)alkyl substituted with one or more (Ce-Ci4)aryl substituents, such as, for example, phenylmethyl, phenylethyl, and triphenylmethyl.

[0043] As used herein, the term "aryloxy" means an oxy radical substituted with an aryl group, such as, for example, phenyloxy, methylphenyloxy, isopropylmethylphenyloxy.

[0044] As used herein, the terminology "(Cr-C3)" in reference to an organic group, wherein r and s are each integers, indicates that the group may contain from r carbon atoms to s carbon atoms per group.

[0045] Throughout the description, references to standard method refers to the version of said standard method pending at the date of filing of this patent application.

[0046] Throughout the description, the expression “comprises” includes the meaning of “consists essentially of’ or even of “consists of”.

[0047] Unless otherwise noted, all component or composition levels are expressed with respect to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions. Notably, in the context of surfactants, the contents of surfactant(s) are expressed by weight of active ingredients (only). They do not take into the account the additives and / or solvents that may be added in the commercial products.

[0048] The invention firstly relates to a personal care composition, typically a hair care composition, comprising:

[0049] - at least one amphoteric surfactant, and

[0050] - at least one cationic conditioning polymer, wherein the composition comprises less than 3% by weight of salts, with respect to the total weight of the composition, and less than 20% by weight of salts, with respect to the total weight of amphoteric surfactant(s) present in the composition.

[0051] As residual by-products obtained during the synthesis of surfactants or intentionally added by the formulator, salts (such as NaCI) are usually present in personal care compositions because notably of their ability to build viscosity. It has been surprisingly found that it is possible to improve manageability of hair, notably of curly hair, by maintaining low inorganic salt concentration in formulas (typically, less than or equal to 3% by weight). The invention avoids or minimizes adding extra inorganic salt to the formula or even uses low inorganic salt containing raw materials. For example, commercially available sulfate free surfactants such as disodium cocoyl glutamate typically comes with high levels of inorganic salt such as 5% or higher. Amphoteric surfactant such as betaines or sultaines also typically come with high levels of inorganic salt such as NaCI. Use of these high salt containing raw materials does not permit to impart a good manageability to hair, notably to curly hair. Reversely, if the inorganic salt level is lowered in the surfactant raw materials so that total salt in the composition is less than 3% by weight of the composition or even lower, a personal care composition capable of improving the manageability of hair, notably of curly hair, is obtained. The personal care composition thus allows improving hair styling, hair definition, anti-frizz effect but also curl retention of hair.

[0052] SURFACTANT SYSTEM

[0053] The personal care compositions described herein include one or more surfactants in the surfactant system.

[0054] As can be appreciated, surfactants provide a personal care benefit to soiled articles such as hair, skin, and hair follicles by facilitating the removal of oil and other soils. Surfactants generally facilitate cleaning due to their amphiphilic nature which allows for the surfactants to break up, and form micelles around, oil and other soils which can then be rinsed out, thereby removing them from the soiled article. Suitable surfactants for a cleansing composition can include anionic moieties to allow for the formation of a coacervate with a cationic polymer. The surfactant can be selected from anionic surfactants, amphoteric surfactants, zwitterionic surfactants, non-ionic surfactants, and combinations thereof.

[0055] The personal care composition of the invention typically comprises from 0.1% to 20% by weight of surfactant(s), with respect to the total weight of the personal care composition of the invention, preferably from 0.5 % to 15% by weight, more preferably from 1% to 10% by weight.

[0056] Preferably, the surfactant system described herein comprises less than 15% by weight of salts, with respect to the total weight of the surfactant system, more preferably less than or equal to 12.5% by weight, even more preferably less than or equal to 10% by weight, typically less than or equal to 8% by weight, for example less than or equal to 5% by weight.

[0057] More preferably, the surfactant system described herein comprises from 0.01% to 15% by weight of salts, with respect to the total weight of the surfactant system, more preferably from 0.1% to 12.5% by weight, even more preferably from 0.5% to 10% by weight, typically from 0.8% to 8% by weight, for example from 1% to 5% by weight.

[0058] By “salts”, we refer in the context of the invention to any known salt that could be classically present in a personal care composition, notably any salt that could be potentially present in a commercial surfactant or added to the composition by the formulator.

[0059] Preferably, in the context of the invention, the term “salt” refers to any of the following organic and inorganic salts: ammonium and / or alkali and / or alkaline- earth halides, ammonium and / or alkali and / or alkaline-earth sulfates, ammonium and / or alkali and / or alkaline-earth sulfonates, ammonium and / or alkali and / or alkaline-earth phosphates, ammonium and / or alkali and / or alkaline-earth phosphonates, and any combinations thereof.

[0060] Amphoteric Surfactant

[0061] The personal care composition of the invention comprises at least one amphoteric surfactant.

[0062] The amphoteric surfactants are typically selected from the group consisting of betaines, sultaines, hydroxysultanes, amphohydroxypropyl sulfonates, alkyl amphoacetates, alkyl amphodiacetates and combination thereof.

[0063] Preferably, the amphoteric surfactant(s) is chosen from the group consisting of betaines, alkyl amphoacetates, alkyl amphodiacetates, sultaines, and combination thereof, preferably from betaine amphoteric surfactants(s).

[0064] Examples of betaine amphoteric surfactants can include coco dimethyl carboxymethyl betaine, cocoamidopropyl betaine (CAPB), cocobetaine, lauryl amidopropyl betaine (LAPB), oleyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl alphacarboxyethyl betaine, cetyl dimethyl carboxymethyl 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, and mixtures thereof. Examples of sulfobetaines can include coco dimethyl sulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, lauryl dimethyl sulfoethyl betaine, lauryl bis-(2-hydroxyethyl) sulfopropyl betaine and mixtures thereof.

[0065] Preferred betaine amphoteric surfactants are alkyl dimethyl betaines, alkyl amidopropyl betaines and mixtures thereof. In particular, preferred betaine amphoteric surfactants are C4-C24-alkyl dimethyl betaines, C4-C24-alkyl amidopropyl betaines and mixtures thereof. Even more preferred betaine amphoteric surfactants are chosen from the group consisting of: cocobetaine, lauramidopropyl betaine, cocoamidopropyl betaine and mixtures thereof, more preferably from cocobetaine, cocoamidopropylbetaine and mixtures thereof. Advantageously, the betaine amphoteric surfactant is cocobetaine.

[0066] Non-limiting example of alkylamphoacetates can include sodium cocoyl amphoacetate, sodium lauroyl amphoacetate and combinations thereof. Preferred amphoteric alkylamphoacetate surfactants are sodium lauroamphoacetetate, sodium cocoamphoacetate, and combinations thereof. Advantageously, the alkylamphoacetate amphoteric surfactant is sodium cocoamphoacetate.

[0067] Non-limiting example of alkylamphodiacetates can include disodium cocoamphodiacetate, disodium lauramphodiacetate and combinations thereof.

[0068] Examples of sultaine amphoteric surfactants can include alkyl sultaines, alkyl amido propyl sultaines, and any combination thereof. Preferred sultaine amphoteric surfactants are laurylsultaine, cocamidopropylhydroxysultaine, lauramidopropylhydroxy sultaine, and combinations thereof. Advantageously, the sultaine amphoteric surfactant is cocoamidopropylhydroxysultaine.

[0069] According to a preferred embodiment, the amphoteric surfactant is chosen from the group consisting of: cocobetaine, lauramidopropylbetaine (LAFB), cocamidopropyl betaine (CAPB), lauramidopropyl betaine (LAPB), sodium lauroamphoacetate, sodium cocoamphoacetate, di-sodium lauroamphodiacetate, di-sodium cocoamphodiacetate, laurylsultaine, cocoamidopropylhydroxysultaine, lauramidopropylhydroxysulatine, and combinations thereof.

[0070] According to a more preferred embodiment, the amphoteric surfactant is chosen from the group consisting of: cocobetaine, cocamidopropyl betaine (CAPB), sodium cocoamphoacetate, cocoamidopropylhydroxysultaine, lauramidopropylhydroxysulatine, and combinations thereof. According to an even more preferred embodiment, the amphoteric surfactant is chosen from betaine amphoteric surfactants, more preferably from the group consisting of: cocobetaine, cocamidopropyl betaine (CAPB), and combinations thereof. Advantageously, the amphoteric surfactant is cocobetaine.

[0071] According to a particularly preferred embodiment, the amphoteric surfactant(s) are chosen from Ultra Low Salts grade surfactants.

[0072] Such grade of amphoteric surfactants are commercially available. Mention may for example be made to Mirataine® CB 35 ULS HP, supplied by SYENSQO.

[0073] The personal care composition of the invention typically comprises from 0.1% to 20% by weight of amphoteric surfactant(s), with respect to the total weight of the personal care composition of the invention, preferably from 0.5 % to 15% by weight, more preferably from 1 % to 10% by weight.

[0074] Anionic surfactant (optional)

[0075] According to an embodiment, the personal care composition of the invention may (optionally) comprise at least one anionic surfactant, provided that, when present, the weight ratio of amphoteric surfactant(s) to anionic surfactant(s) is greater than or equal to 1 : 1.

[0076] The anionic surfactants are typically selected from the group consisting of: sodium, ammonium or potassium salts of isethionates; sodium, ammonium or potassium salts of sulfonates; sodium, ammonium or potassium salts of ether sulfonates; sodium, ammonium or potassium salts of sulfosuccinates; sodium, ammonium or potassium salts of sulfoacetates; sodium, ammonium or potassium salts of glycinates; sodium, ammonium or potassium salts of sarcosinates; sodium, ammonium or potassium salts of glutamates; sodium, ammonium or potassium salts of alaninates; sodium, ammonium or potassium salts of carboxylates; sodium, sodium, ammonium or potassium salts of taurates; sodium, ammonium or potassium salts of phosphate esters; and combinations thereof.

[0077] Suitable isethionate surfactants can include the reaction product of fatty acids esterified with isethionic acid and neutralized with sodium hydroxide. Suitable fatty acids for isethionate surfactants can be derived from coconut oil or palm kernel oil including amides of methyl tauride. Non-limiting examples of isethionates can be selected from the group consisting of sodium lauroyl methyl isethionate, sodium cocoyl isethionate, ammonium cocoyl isethionate, sodium hydrogenated cocoyl methyl isethionate, sodium lauroyl isethionate, sodium cocoyl methyl isethionate, sodium myristoyl isethionate, sodium oleoyl isethionate, sodium oleyl methyl isethionate, sodium palm kerneloyl isethionate, sodium stearoyl methyl isethionate, and mixtures thereof.

[0078] Non-limiting examples of sulfonates can include alpha olefin sulfonates, linear alkylbenzene sulfonates, sodium laurylglucosides hydroxypropylsulfonate and combination thereof.

[0079] Non-limiting examples of sulfosuccinate surfactants can include disodium N- octadecyl sulfosuccinate, disodium lauryl sulfosuccinate, diammonium lauryl sulfosuccinate, sodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, tetrasodium N-(1 ,2-dicarboxyethyl)-N-octadecyl sulfosuccinnate, diamyl ester of sodium sulfosuccinic acid, dihexyl ester of sodium sulfosuccinic acid, dioctyl esters of sodium sulfosuccinic acid, and combinations thereof.

[0080] Non-limiting examples of sulfoacetates can include sodium lauryl sulfoacetate, ammonium lauryl sulfoacetate and combination thereof.

[0081] Non-limiting examples of sarcosinates can be selected from the group consisting of sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, sodium myristoyl sarcosinate, TEA-cocoyl sarcosinate, ammonium cocoyl sarcosinate, ammonium lauroyl sarcosinate, dimer dilinoleyl bis- lauroylglutamate / lauroylsarcosinate, disodium lauroamphodiacetate lauroyl sarcosinate, isopropyl lauroyl sarcosinate, potassium cocoyl sarcosinate, potassium lauroyl sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate, TEA-cocoyl sarcosinate, TEA-lauroyl sarcosinate, TEA- oleoyl sarcosinate, TEA-palm kernel sarcosinate, and combinations thereof.

[0082] Non-limiting examples of acyl glutamates are sodium cocoyl glutamate, disodium cocoyl glutamate, ammonium cocoyl glutamate, diammonium cocoyl glutamate, sodium lauroyl glutamate, disodium lauroyl glutamate, sodium cocoyl hydrolyzed wheat protein glutamate, disodium cocoyl hydrolyzed wheat protein glutamate, potassium cocoyl glutamate, dipotassium cocoyl glutamate, potassium lauroyl glutamate, dipotassium lauroyl glutamate, potassium cocoyl hydrolyzed wheat protein glutamate, dipotassium cocoyl hydrolyzed wheat protein glutamate, sodium capryloyl glutamate, disodium capryloyl glutamate, potassium capryloyl glutamate, dipotassium capryloyl glutamate, sodium undecylenoyl glutamate, disodium undecylenoyl glutamate, potassium undecylenoyl glutamate, dipotassium undecylenoyl glutamate, disodium hydrogenated tallow glutamate, sodium stearoyl glutamate, disodium stearoyl glutamate, potassium stearoyl glutamate, dipotassium stearoyl glutamate, sodium myristoyl glutamate, disodium myristoyl glutamate, potassium myristoyl glutamate, dipotassium myristoyl glutamate, sodium cocoyl / hydrogenated tallow glutamate, sodium cocoyl / palmoyl / sunfloweroyl glutamate, sodium hydrogenated tallowoyl glutamate, sodium olivoyl glutamate, disodium olivoyl glutamate, sodium palmoyl glutamate, disodium palmoyl glutamate, TEA-cocoyl glutamate, TEA- hydrogenated tallowoyl glutamate, TEA-lauroyl glutamate, and mixtures thereof.

[0083] Non-limiting example of acyl alaninates can include sodium cocoyl alaninate, sodium lauroyl alaninate, sodium N-dodecanoyl-1 -alaninate and combination thereof.

[0084] Non-limiting example of glucose carboxylates can include sodium lauryl glucoside carboxylate, sodium cocoyl glucoside carboxylate and combinations thereof.

[0085] Non-limiting example of alkyl ether carboxylate can include sodium laureth-4 carboxylate, laureth-5 carboxylate, laureth-13 carboxylate, sodium C12-C13 pareth- 8 carboxylate, sodium C12-C15 pareth-8 carboxylate and combination thereof.

[0086] Non-limiting example of acyl taurates can include sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, sodium methyl oleoyl taurate and combination thereof.

[0087] According to a preferred embodiment, the anionic surfactant(s) are chosen from sodium, ammonium or potassium salts of taurates and combinations thereof, preferably from sodium salts of taurates.

[0088] According to a more preferred embodiment, the anionic surfactant(s) are chosen from sodium methyl C4-C24-alkyl taurates, more preferably from sodium methyl cocoyl taurate, sodium methyl oleyl taurate and combinations thereof.

[0089] According to a particular embodiment, the anionic surfactant(s) are substantially free of sulfate-based surfactants. By "substantially free" of sulfate based surfactants as used herein means from 0 wt% to 3 wt%, alternatively from 0 wt% to 2 wt%, alternatively from 0 wt% to 1 wt%, alternatively from 0 wt% to 0.5 wt%, alternatively from 0 wt% to 0.25 wt%, alternatively from 0 wt% to 0.1 wt%, alternatively from 0 wt% to 0.05 wt%, alternatively from 0 wt% to 0.01 wt%, alternatively from 0 wt% to 0.001 wt%, and / or alternatively free of sulfates. As used herein, "free of” means 0 wt%.

[0090] According to a particularly preferred embodiment, the anionic surfactant(s) are chosen from Ultra Low Salts grade surfactants.

[0091] Such grade of anionic surfactants are commercially available. Mention may for example be made to Geropon® TC 95 P or Geropon® TC Clear MB, both supplied by SYENSQO.

[0092] The personal care composition of the invention may typically comprise from 0.1% to 10% by weight of anionic surfactant(s), with respect to the total weight of the personal care composition of the invention, preferably from 0.5 % to 8% by weight, more preferably from 1 % to 5% by weight.

[0093] When present in the composition of the invention, the anionic surfactant(s) are present in a content such that the weight ratio of amphoteric surfactant(s) to anionic surfactant(s) is greater than or equal to 1 :1. Preferably, the weight ratio of amphoteric surfactant(s) to anionic surfactant(s) ranges from 1 :1 to 10:1 , more preferably from 1 :1 to 5:1.

[0094] Non-ionic surfactant (optional)

[0095] The personal care composition of the invention may also comprise (optional) at least one non-ionic surfactant.

[0096] The non-ionic surfactant can for example be selected from the group consisting alkyl polyglucoside, alkyl glycoside, acyl glucamide, fatty acid amides, and mixtures thereof.

[0097] Non-limiting examples of alkyl glucosides can include decyl glucoside, cocoyl glucoside, lauroyl glucoside, and combinations thereof.

[0098] Non-limiting examples of acyl glucamide can include lauroyl / myristoyl methyl glucamide, capryloyl / caproyl methyl glucamide, lauroyl / myristoyl methyl glucamide, cocoyl methyl glucamide, and combinations thereof.

[0099] Non-limiting examples of fatty acid amides can include isopropanolamides of coconut acid, such as for example cocamide MIPA.

[0100] The personal care composition of the invention may typically comprise from 0.1 % to 10% by weight of anionic surfactant(s), with respect to the total weight of the personal care composition of the invention, preferably from 0.5 % to 8% by weight, more preferably from 1 % to 5% by weight. CATIONIC CONDITIONING POLYMER

[0101] The personal care composition of the invention also comprises at least one cationic conditioning polymer.

[0102] Suitable cationic conditioning polymers can include: a cationic guar polymer, a cationic non-guar galactomannan polymer, a cationic starch polymer, a cationic copolymer of acrylamide monomers and cationic monomers, a synthetic, noncrosslinked, cationic polymer, which may or may not form lyotropic liquid crystals upon combination with the detersive surfactant, and a cationic cellulose polymer.

[0103] Cationic Guar Polymer

[0104] The cationic conditioning polymer can be a cationic guar polymer, which is a cationically substituted galactomannan (guar) gum derivative. Suitable guar gums for guar gum derivatives can be obtained as a naturally occurring material from the seeds of the guar plant. As can be appreciated, the guar molecule is a straight chain mannan which is branched at regular intervals with single membered galactose units on alternative mannose units. The mannose units are linked to each other by means of (3(1-4) glycosidic linkages. The galactose branching arises by way of an a(1-6) linkage. Cationic derivatives of the guar gums can be obtained through reactions between the hydroxyl groups of the polygalactomannan and reactive quaternary ammonium compounds. The degree of substitution of the cationic groups onto the guar structure can be sufficient to provide the requisite cationic charge density described above.

[0105] A cationic guar polymer can have a weight average molecular weight (“M Wt.”) of less than 1 million g / mol, and can have a charge density from 0.05 meq / g to 2.5 meq / g. Cationic guar suitable can have a weight average molecular weight (“M Wt.”) of less than about 0.5 million g / mol.

[0106] Suitable cationic guar polymers include cationic guar gum derivatives, such as guar hydroxypropyl trimonium chloride or even hydroxypropyl guar hydroxypropyl trimonium chloride. Suitable examples of guar hydroxypropyltrimonium chlorides can include the Jaguar® series commercially available from SYENSQO and N-Hance™ and AquaCat™ from Ashland Inc.

[0107] Cationic Non-Guar Galactomannan Polymer A cationic conditioning polymer can be a galactomannan polymer derivative. A suitable galactomannan polymer can have a mannose to galactose ratio of greater than 2:1 on a monomer to monomer basis and can be a cationic galactomannan polymer derivative or an amphoteric galactomannan polymer derivative having a net positive charge. As used herein, the term “cationic galactomannan” refers to a galactomannan polymer to which a cationic group is added. The term “amphoteric galactomannan” refers to a galactomannan polymer to which a cationic group and an anionic group are added such that the polymer has a net positive charge.

[0108] Galactomannan polymers can be present in the endosperm of seeds of the Leguminosae family Galactomannan polymers are made up of a combination of mannose monomers and galactose monomers. The galactomannan molecule is a straight chain mannan branched at regular intervals with single membered galactose units on specific mannose units. The mannose units are linked to each other by means of (3(1-4) glycosidic linkages. The galactose branching arises by way of an a(1-6) linkage. The ratio of mannose monomers to galactose monomers varies according to the species of the plant and can be affected by climate. Nonguar galactomannan polymer derivatives can have a ratio of mannose to galactose of greater than 2:1 on a monomer to monomer basis. Suitable ratios of mannose to galactose can also be greater than 3:1 or greater than 4:1. Analysis of mannose to galactose ratios is well known in the art and is typically based on the measurement of the galactose content.

[0109] The gum for use in preparing the non-guar galactomannan polymer derivatives can be obtained from naturally occurring materials such as seeds or beans from plants. Examples of various non-guar galactomannan polymers include Tara gum (3 parts mannose / 1 part galactose), Locust bean or Carob (4 parts mannose / 1 part galactose), and Cassia gum (5 parts mannose / 1 part galactose).

[0110] A non-limiting example of non-guar galactomannan cationic polymer can be cassia cassia hydroxypropyltrimonium chloride known as ClearHance™ C available from Ashland.

[0111] Cationic Copolymer of an Acrylamide Monomer and a Cationic

[0112] Monomer A cationic conditioning polymer can also be a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of from about 1.0 meq / g to about 3.0 meq / g. The cationic copolymer can be a synthetic cationic copolymer of acrylamide monomers and cationic monomers.

[0113] The acrylamide monomer can be either acrylamide or methacrylamide.

[0114] The cationic copolymer can be AM:TRIQUAT which is a copolymer of acrylamide and 1 ,3-Propanediaminium,N-[2-[[[dimethyl[3-[(2-methyl-1-oxo-2- propenyl)amino]propyl]ammonio]acetyl]amino]ethyl]2-hydroxy-N,N,N',N',N'- pentamethyl-, trichloride. AM:TRIQUAT is also known as polyquaternium 76 (PQ76). AM:TRIQUAT can have a charge density of 1.6 meq / g and a M Wt. of 1.1 million g / mol.

[0115] The cationic copolymer can include an acrylamide monomer and a cationic monomer, wherein the cationic monomer is selected from the group consisting of: dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, ditertiobutylaminoethyl (meth)acrylate, dimethylaminomethyl (meth)acrylamide, dimethylaminopropyl (meth)acrylamide, ethylenimine, vinylamine, 2-vinylpyridine, 4-vinylpyridine, trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulphate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyl dimethylammonium ethyl acrylate chloride, trimethyl ammonium ethyl (meth)acrylamido chloride, trimethyl ammonium propyl (meth)acrylamido chloride, vinylbenzyl trimethyl ammonium chloride, diallyldimethyl ammonium chloride, and mixtures thereof.

[0116] The cationic copolymer can include a cationic monomer selected from the group consisting of: trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulphate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyl dimethylammonium ethyl acrylate chloride, trimethyl ammonium ethyl (meth)acrylamido chloride, trimethyl ammonium propyl (meth)acrylamido chloride, vinylbenzyl trimethyl ammonium chloride, and mixtures thereof.

[0117] The cationic copolymer can be formed from (1) copolymers of (meth)acrylamide and cationic monomers based on (meth)acrylamide, and / or hydrolysis-stable cationic monomers, (2) terpolymers of (meth)acrylamide, monomers based on cationic (meth)acrylic acid esters, and monomers based on (meth)acrylamide, and / or hydrolysis-stable cationic monomers. Monomers based on cationic (meth)acrylic acid esters can be cationized esters of the (meth)acrylic acid containing a quaternized N atom. Cationized esters of the (meth)acrylic acid containing a quaternized N atom are quaternized dialkylaminoalkyl (meth)acrylates with C1 to C3 in the alkyl and alkylene groups. The cationized esters of the (meth)acrylic acid containing a quaternized N atom can be selected from the group consisting of: ammonium salts of dimethylaminomethyl (meth)acrylate, dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, diethylaminomethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, and diethylaminopropyl (meth)acrylate quaternized with methyl chloride. The cationized esters of the (meth)acrylic acid containing a quaternized N atom can be dimethylaminoethyl acrylate, which is quaternized with an alkyl halide, or with methyl chloride or benzyl chloride or dimethyl sulfate (ADAME- Quat).

[0118] The cationic monomer when based on (meth)acrylamides are quaternized dialkylaminoalkyl(meth)acrylamides with C1 to C3 in the alkyl and alkylene groups, or dimethylaminopropylacrylamide, which is quaternized with an alkyl halide, or methyl chloride or benzyl chloride or dimethyl sulfate.

[0119] The cationic monomer based on a (meth)acrylamide can be a quaternized dialkylaminoalkyl(meth)acrylamide with C1 to C3 in the alkyl and alkylene groups. The cationic monomer based on a (meth)acrylamide can be dimethylaminopropylacrylamide, which is quaternized with an alkyl halide, especially methyl chloride or benzyl chloride or dimethyl sulfate.

[0120] The cationic monomer can be a hydrolysis-stable cationic monomer. Hydrolysis-stable cationic monomers can be, in addition to a dialkylaminoalkyl(meth)acrylamide, any monomer that can be regarded as stable to the OECD hydrolysis test. The cationic monomer can be hydrolysis-stable and the hydrolysis-stable cationic monomer can be selected from the group consisting of: diallyldimethylammonium chloride and water-soluble, cationic styrene derivatives.

[0121] The cationic copolymer can be a terpolymer of acrylamide, 2- dimethylammoniumethyl (meth)acrylate quaternized with methyl chloride (ADAME-Q) and 3-dimethylammoniumpropyl(meth)acrylamide quaternized with methyl chloride (DIMAPA-Q). The cationic copolymer can be formed from acrylamide and acrylamidopropyltrimethylammonium chloride, wherein the acrylamidopropyltrimethylammonium chloride has a charge density of from 1.0 meq / g to 3.0 meq / g.

[0122] The cationic copolymer can have a charge density of from 1.1 meq / g to 2.5 meq / g, from 1.1 meq / g to 2.3 meq / g, from 1 .2 meq / g to 2.2 meq / g, from 1 .2 meq / g to 2.1 meq / g, from 1.3 meq / g to 2.0 meq / g, and from 1.3 meq / g to 1.9 meq / g.

[0123] The cationic copolymer can have a M Wt. from about 100 thousand g / mol to about 2 million g / mol, from 300 thousand g / mol to 1.8 million g / mol, from 500 thousand g / mol to 1.6 million g / mol, from 700 thousand g / mol to 1.4 million g / mol, and from 900 thousand g / mol to 1.2 million g / mol.

[0124] The cationic copolymer can be a trimethylammoniopropylmethacrylamide chloride-N-Acrylamide copolymer, which is also known as AM:MAPTAC. AM:MAPTAC can have a charge density of about 1.3 meq / g and a M Wt. of about 1.1 million g / mol. The cationic copolymer is AM:ATPAC. AM:ATPAC can have a charge density of 1.8 meq / g and a M Wt. of 1.1 million g / mol.

[0125] Synthetic Polymers

[0126] A cationic polymer can be a synthetic polymer that is formed from: i) one or more cationic monomer units, and optionally ii) one or more monomer units bearing a negative charge, and / or iii) a nonionic monomer, wherein the subsequent charge of the copolymer is positive. The ratio of the three types of monomers is given by “m”, “p” and “q” where “m” is the number of cationic monomers, “p” is the number of monomers bearing a negative charge and “q” is the number of nonionic monomers

[0127] Suitable monomers can include aminoalkyl (meth)acrylates, (meth)aminoalkyl (meth)acrylamides; monomers comprising at least one secondary, tertiary or quaternary amine function, or a heterocyclic group containing a nitrogen atom, vinylamine or ethylenimine; diallyldialkyl ammonium salts; their mixtures, their salts, and macromonomers deriving from therefrom.

[0128] Further examples of suitable cationic monomers can include dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, ditertiobutylaminoethyl (meth)acrylate, dimethylaminomethyl (meth)acrylamide, dimethylaminopropyl (meth)acrylamide, ethylenimine, vinylamine, 2-vinylpyridine, 4-vinylpyridine, trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulphate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyl dimethylammonium ethyl acrylate chloride, trimethyl ammonium ethyl (meth)acrylamido chloride, trimethyl ammonium propyl (meth)acrylamido chloride, vinylbenzyl trimethyl ammonium chloride, diallyldimethyl ammonium chloride.

[0129] Suitable cationic monomers can include quaternary monomers of formula - NR3+, wherein each R can be identical or different, and can be a hydrogen atom, an alkyl group comprising 1 to 10 carbon atoms, or a benzyl group, optionally carrying a hydroxyl group, and including an anion (counter-ion). Examples of suitable anions include halides such as chlorides, bromides, phosphates, citrates, formates, and acetates.

[0130] Suitable cationic monomers can also include trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulphate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyl dimethylammonium ethyl acrylate chloride, trimethyl ammonium ethyl (meth)acrylamido chloride, trimethyl ammonium propyl (meth)acrylamido chloride, vinylbenzyl trimethyl ammonium chloride. Additional suitable cationic monomers can include trimethyl ammonium propyl (meth)acrylamido chloride.

[0131] Examples of monomers bearing a negative charge include alpha ethylenically unsaturated monomers including a phosphate or phosphonate group, alpha ethylenically unsaturated monocarboxylic acids, monoalkylesters of alpha ethylenically unsaturated dicarboxylic acids, monoalkylamides of alpha ethylenically unsaturated dicarboxylic acids, alpha ethylenically unsaturated compounds comprising a sulphonic acid group, and salts of alpha ethylenically unsaturated compounds comprising a sulphonic acid group.

[0132] Suitable monomers with a negative charge can include acrylic acid, methacrylic acid, vinyl sulphonic acid, salts of vinyl sulfonic acid, vinylbenzene sulphonic acid, salts of vinylbenzene sulphonic acid, alpha- acrylamidomethylpropanesulphonic acid, salts of alpha- acrylamidomethylpropanesulphonic acid, 2-sulphoethyl methacrylate, salts of 2- sulphoethyl methacrylate, acrylamido-2-methylpropanesulphonic acid (AMPS), salts of acrylamido-2-methylpropanesulphonic acid, and styrenesulphonate (SS).

[0133] Examples of nonionic monomers can include vinyl acetate, amides of alpha ethylenically unsaturated carboxylic acids, esters of an alpha ethylenically unsaturated monocarboxylic acids with an hydrogenated or fluorinated alcohol, polyethylene oxide (meth)acrylate (i.e. polyethoxylated (meth)acrylic acid), monoalkylesters of alpha ethylenically unsaturated dicarboxylic acids, monoalkylamides of alpha ethylenically unsaturated dicarboxylic acids, vinyl nitriles, vinylamine amides, vinyl alcohol, vinyl pyrolidone, and vinyl aromatic compounds.

[0134] Suitable nonionic monomers can also include styrene, acrylamide, methacrylamide, acrylonitrile, methylacrylate, ethylacrylate, n-propylacrylate, n- butylacrylate, methylmethacrylate, ethylmethacrylate, n-propylmethacrylate, n- butylmethacrylate, 2-ethyl-hexyl acrylate, 2-ethyl-hexyl methacrylate, 2- hydroxyethylacrylate and 2-hydroxyethylmethacrylate.

[0135] The anionic counterion (X") in association with the synthetic cationic polymers can be any known counterion so long as the polymers remain soluble or dispersible in water, in the shampoo composition, or in a coacervate phase of the shampoo composition, and so long as the counterions are physically and chemically compatible with the essential components of the shampoo composition or do not otherwise unduly impair product performance, stability or aesthetics. Non-limiting examples of suitable counterions can include halides (e.g., chlorine, fluorine, bromine, iodine).

[0136] Preferably, synthetic polymers that can be used as cationic conditioning polymer are chosen from copolymers of (meth)acrylamide and quaternary monomers of formula NR4+, wherein each R can be identical or different, and can be a hydrogen atom, an alkyl group comprising 1 to 10 carbon atoms, or a benzyl group, optionally carrying a hydroxyl group, and including an anion (counter-ion).

[0137] More preferably, synthetic polymers that can be used as cationic conditioning polymer are chosen from polymers of (meth)acrylamide and quaternary monomers of formula -NH2R+, with R an alkyl group comprising 1 to 10 carbon atoms, and including an anion (counter-ion).

[0138] A non-limiting example of synthetic cationic polymer can be polymethacrylamido-propyltrimonium Chloride known as Polycare® Frizz Therapy available from SYENSQO.

[0139] Cationic Cellulose Polymer Suitable cationic conditioning polymers can also be cellulose polymers. Suitable cellulose polymers can include salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, referred to in the industry (CTFA) as Polyquaternium 10 and available from Dow / Amerchol Corp. (Edison, N.J., USA) in their Polymer LR, JR, and KG series of polymers. Other suitable types of cationic cellulose can include the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium-substituted epoxide referred to in the industry (CTFA) as Polyquaternium 24. These materials are available from Dow / Amerchol Corp, under the tradename Polymer LM-200. Other suitable types of cationic cellulose can include the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammoniumsubstituted epoxide and trimethyl ammonium substituted epoxide referred to in the industry (CTFA) as Polyquaternium 67. These materials are available from Dow / Amerchol Corp, under the tradename SoftCAT Polymer SL-5, SoftCAT Polymer SL-30, Polymer SL-60, Polymer SL-100, Polymer SK-L, Polymer SK-M, Polymer SK-MH, and Polymer SK-H.

[0140] Additional cationic polymers are also described in the CTFA Cosmetic Ingredient Dictionary, 3rd edition, edited by Estrin, Crosley, and Haynes, (The Cosmetic, Toiletry, and Fragrance Association, Inc., Washington, D.C. (1982).

[0141] According to a preferred embodiment, the cationic conditioning polymer is chosen from cationic guar polymers, cationic non-guar galactomannan, synthetic cationic polymers, cationic cellulose polymers and combinations thereof, preferably from cationic guar polymers, synthetic cationic polymers, cationic cellulose polymers, and combinations thereof.

[0142] According to a more preferred embodiment, the cationic conditioning polymer is chosen from the group consisting of: guar hydroxypropyl trimonium chloride, hydroxypropyl guar hydroxypropyl trimonium chloride, polymethacrylamido- propyltrimonium halides, salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, and combinations thereof.

[0143] According to even preferred embodiment, the cationic conditioning polymer is guar hydroxypropyl trimonium chloride, hydroxypropyl guar hydroxypropyl trimonium chloride, and mixtures thereof; more preferably the cationic conditioning polymer is hydroxypropyl guar hydroxypropyl trimonium chloride. The personal care composition of the invention typically comprises from 0.1% to 5% by weight of cationic conditioning polymer(s), with respect to the total weight of the personal care composition of the invention, preferably from 0.15 % to 3% by weight, more preferably from 0.2 % to 1.5% by weight.

[0144] LIQUID CARRIER

[0145] Inclusion of an appropriate quantity of a liquid carrier can facilitate the formation of a personal care composition having an appropriate liquid viscosity and rheology. A personal care composition can include, by weight of the composition, from 50% to 95%, of a liquid carrier, from 60% to 85%, from 65% to 80%, from 68% to 78%, and / or from 70% to 77%.

[0146] A liquid carrier can be water, or can be a miscible mixture of water and organic solvent. A liquid carrier can be water with minimal or no significant concentrations of organic solvent, except as otherwise incidentally incorporated into the composition as minor ingredients of other essential or optional components. Suitable organic solvents can include water solutions of lower alkyl alcohols and polyhydric alcohols. Useful lower alkyl alcohols include monohydric alcohols having 1 to 6 carbons, such as ethanol and isopropanol. Exemplary polyhydric alcohols include propylene glycol, hexylene glycol, glycerin, and propane diol.

[0147] THICKENING AND SUSPENDING AGENTS (OPTIONAL)

[0148] According to a particular embodiment, the personal care composition of the invention may further comprise at least one thickening and / or suspending agent.

[0149] Thickening and / or suspending agents are known to ensure the stability of insoluble materials in the composition. A variety of materials can be employed. These include swelling and associative polymers, finely divided crystalline or amorphous inorganic and organic materials that form networks, electrolytes and combinations thereof.

[0150] Organic polymers include carboxyvinyl polymers such as the copolymers of acrylic acid crosslinked with polyallylsucrose as described in U.S. Pat. No. 2,798, 053. Examples of these polymers include CARBOPOL 934, 940, 941 , and 956, available from NOVEON and the alkali swellable acrylic latex polymers sold by Rohm and Haas under the ACRYSOL or ACULYN trade names. Other suitable suspending agents include xanthan gum at concentrations ranging from 0.3% to 3% by weight, preferably from 0.4% to 1.2% by weight, with respect to the total weight of the composition.

[0151] Other suitable polymeric suspending agents may be used in the compositions, including those that can impart a gel-like viscosity to the composition, such as water soluble or colloidally water soluble polymers like cellulose ethers (e.g., methylcellulose, hydroxybutyl methylcellulose, hydropylcellulose, hydroxypropyl methylcellulose, hydroxyethyl ethylcellulose and hydroxyethylcellulose), guar gum, polyvinyl alcohol, polyvinyl pyrrolidone, hydroxypropyl guar gum, starch and starch derivatives, and other thickeners, viscosity modifiers, gelling agents, etc. Mixtures of these materials can also be used.

[0152] Optional crystalline organic suspending agents include acyl derivatives, long chain amine oxides, or combinations thereof, concentrations of which range from 0.1 % to 5%, preferably from 0.5% to 3%, by weight of the compositions. When used in the personal care compositions, these suspending agents are present in crystalline form. These suspending agents are described in U.S. Pat. No. 4,741 ,855. These suspending agents include ethylene glycol esters of fatty acids preferably having from 16 to 22 carbon atoms. Examples include ethylene glycol stearates, both mono and distearate, but particularly distearates containing less than about 7 percent of the mono stearate. Other suitable suspending agents include alkanol amides of fatty acids, preferably having from 16 to 22 carbon atoms, more preferably 16 to 18 carbon atoms, preferred examples of which include stearic monoethanolamide, stearic diethanolamide, stearic monoisopropanolamide and stearic monoethanolamide stearate. Other long chain acyl derivatives include long chain esters of long chain fatty acids (e.g., stearyl stearate, cetyl palmitate, etc.); glyceryl esters (e.g., glyceryl distearate) and long chain esters of long chain alkanol amides (e.g., stearamide diethanolamide distearate, stearamide monoethanolamide stearate). Long chain acyl derivatives, ethylene glycol esters of long chain carboxylic acids, long chain amine oxides, and alkanol amides of long chain carboxylic acids in addition to the preferred materials listed above may be used as suspending agents. For example, it is contemplated that suspending agents with long chain hydrocarbyls having C8-C22 chains may be used. Examples of suitable long chain amine oxides for use as suspending agents include alkyl (C16-C22) dimethyl amine oxides, e.g., stearyl dimethyl amine oxide.

[0153] Another useful crystalline suspending agent is trihydroxystearin sold under the trade name THIXCIN®.

[0154] Network forming inorganic materials include but are not limited to clays, and silicas. Examples of clays include smectite clay selected from the group consisting of bentonite and hectorite and mixtures thereof. Synthetic hectorite (laponite) clay are often used with an electrolyte salt capable of causing the clay to thicken (alkali and alkaline earth salts such as halides, ammonium salts and sulfates). Bentonite is a colloidal aluminum clay sulfate. Examples of silica include amorphous silica and include fumed silica and precipitated silica and mixtures thereof.

[0155] Associative polymers are those which incorporate hydrophobic groups which can form labile crosslinks alone or with the participation of surfactant micelles. An example of associative polymers the hydrophobically modified cross linked polyacrylates sold by NOVEON under the PEMULEN trade name. Other examples are hydrophobically modified cellulose ether and hydrophobically modified polyurethane. A particularly preferred class of thickening and suspending agent in the present invention is hydrophobically modified water-soluble nonionic polyol. Suitable hydrophobically modified water-soluble nonionic polyols for use herein are PEG 120 methyl glucoside dioleate (available from Amercol under the trade name GLUCAMATE DOE 120), PEG- 150 pentaerythrityl tetrastearate (available from Croda under the trade name CROTHIX, PEG-75 dioleate (available from Kessco under the trade name PEG-4000 DIOLEATE) and PEG- 150 distearate (available from Witco under the trade name WITCONAL L32).

[0156] Long chain fatty esters of polyethylene glycol, e.g., PEG-150 distearate, are especially preferred thickening and suspending agents in the present invention. Although the PEG fatty esters can be used alone, it has been found that their effectiveness and efficiency can be greatly improved when they are combined with certain electrolytes. Especially preferred electrolytes for use in combination PEG- 150 distearate, are sodium citrate and sodium chloride as they provide a synergistic thickening system that allows adequate thickening at low levels of inclusion in composition that have a low total concentration of surfactant, e.g., less than 15% by weight. Preferably, when present, the personal care composition of the invention comprises from 0.1% to 10% by weight of thickening and / or suspending agents, with respect to the total weight of the composition.

[0157] OTHER OPTIONAL ADDITIVES

[0158] As can be appreciated, the personal care compositions described herein can include a variety of optional components to tailor the properties and characteristics of the composition. As can be appreciated, suitable optional components are well known and can generally include any components which are physically and chemically compatible with the essential components of the personal care compositions described herein. Optional components should not otherwise unduly impair product stability, aesthetics, or performance. Individual concentrations of optional components can generally range from 0.001 % to 10%, by weight of the personal care composition.

[0159] Optional components may include, but are not limited to, conditioning agents (including hydrocarbon oils, fatty esters, silicones), anti-dandruff actives, chelating agents, and natural oils such as sunflower oil or castor oil. Additional suitable optional ingredients include but are not limited to perfumes, perfume microcapsules, colorants, particles, anti-microbials, foam boosters, anti-static agents, propellants, self-foaming agents, pH adjusting agents and buffers, preservatives, pearlescent agents, solvents, diluents, anti-oxidants, vitamins, proteins, and combinations thereof.

[0160] Such optional ingredients should be physically and chemically compatible with the components of the composition, and should not otherwise unduly impair product stability, aesthetics, or performance The CTFA Cosmetic Ingredient Handbook, Tenth Edition (published by the Cosmetic, Toiletry, and Fragrance Association, Inc., Washington, D.C.) (2004) (hereinafter “CTFA”), describes a wide variety of nonlimiting materials that can be added to the composition herein.

[0161] Preferably, when present, these further additive(s) represent (all together) from 0.001% to 10% by weight of the total weight of the personal care composition of the invention, preferably from 0.1 % to 8% by weight, more preferably from 0.5 % to 5% by weight.

[0162] COMPOSITION According to an embodiment, the personal care composition of the invention comprises, preferably consists essentially of, more preferably consists of:

[0163] - from 0.1% to 20% by weight of amphoteric surfactant(s),

[0164] - from 0.1% to 5% by weight of cationic conditioning polymer(s),

[0165] - optionally, from 0.1% to 10% by weight of anionic surfactants,

[0166] - optionally, from 0.1% to 10% by weight of non-ionic surfactants,

[0167] - optionally, from 0.1% to 10% by weight of thickening and / or suspending agents,

[0168] - optionally, from 0.001% to 10% by weight of further additives, notably of preservatives and / or fragrances and / or pH adjusting agents,

[0169] - liquid carriers, notably water and / or glycerin, with respect to the total weight of the composition.

[0170] According to a preferred embodiment, the personal care composition of the invention comprises, preferably consists essentially of, more preferably consists of:

[0171] - from 0.5% to 15% by weight of amphoteric surfactant(s),

[0172] - from 0.15% to 3% by weight of cationic conditioning polymer(s),

[0173] - optionally, from 0.5% to 8% by weight of anionic surfactants,

[0174] - optionally, from 0.5% to 8% by weight of non-ionic surfactants,

[0175] - optionally, from 0.1% to 10% by weight of thickening and / or suspending agents,

[0176] - optionally, from 0.1% to 8% by weight of further additives, notably of preservatives and / or fragrances and / or pH adjusting agents,

[0177] - liquid carriers, notably water and / or glycerin, with respect to the total weight of the composition.

[0178] According to an even preferred embodiment, the personal care composition of the invention comprises, preferably consists essentially of, more preferably consists of:

[0179] - from 1% to 10% by weight of amphoteric surfactant(s),

[0180] - from 0.2% to 1.5% by weight of cationic conditioning polymer(s),

[0181] - optionally, from 1% to 5% by weight of anionic surfactants,

[0182] - optionally, from 1% to 5% by weight of non-ionic surfactants,

[0183] - optionally, from 0.1% to 10% by weight of thickening and / or suspending agents, - optionally, from 0.5% to 5% by weight of further additives, notably of preservatives and / or fragrances and / or pH adjusting agents,

[0184] - liquid carriers, notably water and / or glycerin, with respect to the total weight of the composition.

[0185] Preferably, the personal care composition of the invention comprises less than 3% by weight of salts, with respect to the total weight of the composition, more preferably less than or equal to 2% by weight.

[0186] Even more preferably, the personal care composition of the invention comprises less than 3% by weight, more preferably less than or equal to 2% by weight, of salts selected from the group consisting of: ammonium and / or alkali and / or alkaline-earth halides, ammonium and / or alkali and / or alkaline-earth sulfates, ammonium and / or alkali and / or alkaline-earth sulfonates, ammonium and / or alkali and / or alkaline-earth phosphates, ammonium and / or alkali and / or alkaline-earth phosphonates, and any combinations thereof, with respect to the total weight of the composition.

[0187] Preferably, the personal care composition of the invention comprises less than 20% by weight of salts (typically from 0.1 % to 20% by weight), with respect to the total weight of amphoteric and anionic surfactants present in the composition, more preferably less than or equal to 15% by weight (for example from 0.5% to 15% by weight).

[0188] More preferably, the personal care composition of the invention comprises less than 20% by weight (typically from 0.1% to 20% by weight), more preferably less than or equal 15% by weight (for example from 0.5% to 15% by weight), of salts selected from the group consisting of: ammonium and / or alkali and / or alkaline-earth halides, ammonium and / or alkali and / or alkaline-earth sulfates, ammonium and / or alkali and / or alkaline-earth sulfonates, ammonium and / or alkali and / or alkaline-earth phosphates, ammonium and / or alkali and / or alkaline-earth phosphonates, and any combinations thereof, with respect to the total weight of amphoteric and anionic surfactants present in the composition.

[0189] Preferably, the personal care composition of the invention comprises less than 20% by weight of salts (typically from 0.1 % to 20% by weight), with respect to the total weight of amphoteric surfactants present in the composition, more preferably less than or equal to 15% by weight (for example from 0.5% to 15% by weight), even more preferably less than or equal to 10% (for example from 1 % to 10% by weight).

[0190] More preferably, the personal care composition of the invention comprises less than 20% by weight (typically from 0.1% to 20% by weight), more preferably less than or equal 15% by weight (for example from 0.5% to 15% by weight), even more preferably less than or equal to 10% by weight (for example from 1% to 10% by weight), of salts selected from the group consisting of: ammonium and / or alkali and / or alkaline-earth halides, ammonium and / or alkali and / or alkaline-earth sulfates, ammonium and / or alkali and / or alkaline-earth sulfonates, ammonium and / or alkali and / or alkaline-earth phosphates, ammonium and / or alkali and / or alkaline-earth phosphonates, and any combinations thereof, with respect to the total weight of amphoteric surfactants present in the composition.

[0191] According to an embodiment, the personal care composition of the invention has a pH value inferior or equal to 6.5, preferably ranging from 4.5 to 6.5.

[0192] APPLICATIONS

[0193] According to a preferred embodiment, the personal care composition of the invention is a hair care composition.

[0194] According to a first embodiment, the hair care composition of the invention is a shampoo composition.

[0195] According to a second embodiment, the hair care composition of the invention is a non-rinsed composition, preferably a foaming composition for styling.

[0196] The personal care composition of the invention is particularly adapted for treating curly and / or textured hair.

[0197] By “curly hair” or “textured hair”, we refer in the context of the invention to hair identified as Type 2, 3 or 4 according to the Andre Walker Hair Typing System.

[0198] The invention also relates to the use of a personal care composition as defined above for improving hair manageability, notably curly and / or textured hair manageability.

[0199] In particular, the invention relates to the use of personal care composition of the invention for improving at least one of the following aspects:

[0200] - hair styling, notably curly and / or textured hair styling, - hair definition, notably curly and / or textured hair definition,

[0201] - curl retention of hair,

[0202] - frizz and fly-away control,

[0203] - hair shine, and

[0204] - hair volume control.

[0205] The invention also relates to a method of treatment of keratin fibers, notably of hair, comprising a step of applying a personal care composition as defined above to keratin fibers, notably to hair.

[0206] When the hair care composition of the invention is a shampoo composition, the method of the invention further comprises a step of rinsing step, after having applied the personal care composition to keratin fibers.

[0207] Should the disclosure of any patents, patent applications, and publications which are incorporated herein by reference conflict with the description of the present application to the extent that it may render a term unclear, the present description shall take precedence.

[0208] EXAMPLES

[0209] In the following examples, and unless otherwise explicitly stated, contents are in given in percentages by weight, with respect to the total weight of the composition.

[0210] I - Materials

[0211] The following ingredients have been used to prepare several shampoo compositions:

[0212] Surfactants

[0213] - Amphoteric 1 : Ultra Low Salt grade of coco betaine, commercially available from Syensqo under the name Mirataine® CB 35 ULS HP,

[0214] - Amphoteric 2: coco betaine, commercially available from Syensqo under the name Mirataine® BBFLA,

[0215] - Anionic 1 : Ultra Low Salt grade sodium methyl oleyl taurate, commercially available from Syensqo under the name Geropon® T77 PC,

[0216] - Anionic 2: Ultra Low Salt grade Sodium methyl cocoyl taurate, commercially available from Syensqo under the name Geropon® TC95 P,

[0217] - Non-lonic 1 : cocamide MIPA, commercially available from Verdant Specialty Solutions under the name Mackamide® CPA Flake,

[0218] - Non-lonic 2: Decylglucoside, commercially available from BASF under the name Plantaren® 2000 N UP,

[0219] Cationic conditioning polymers

[0220] - Polymer 1 : Polyquaternium-10, commercially available from Univar Solutions under the name Ucare™ JR-400,

[0221] - Polymer 2: Guar Hydroxypropyltrimonium Chloride, commercially available from Syensqo under the name Jaguar® Excel,

[0222] - Polymer 3: Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, commercially available from Syensqo under the name Jaguar® C162,

[0223] - Polymer 4: Polymethacrylamidopropyltrimonium chloride, commercially available from SYENSQO under the name Polycare® Frizz Therapy,

[0224] Others

[0225] - Preservative 1 : sodium benzoate, commercially available from VWR,

[0226] - Preservative 2: phenoxyethanol, commercially available from Sigma- Aldrich,

[0227] - Protein: Cocodimonium hydroxypropyl hydrolyzed rice protein, commercially available from SYENSQO under the name Polycare® Rice,

[0228] - pH adjusting agent: citric acid (acid) and / or sodium hydroxide (base), and

[0229] - Glycerin.

[0230] Hair tresses are used to evaluate the performances of the compositions. The tresses are “Mixed race” hair Curly Type 3, according to Andre Walker Hair Typing System, supplied by SPEquation. The tresses come all from the same batch. Before each experiment, the tresses are cleaned according to the following protocol:

[0231] 1) the tress is wetted under tape water for 1 minute,

[0232] 2) the tress is shampooed using 1.5 mL of a 14 wt. % Sodium laureth sulfate (SLES) solution for 1 minute and 30 seconds, and

[0233] 3) the tress is finally rinsed with a water flow (100 mL / second) heated at a temperature equal to 37°C for 1 minute and 30 seconds. II - Preparation of compositions C1 to C10

[0234] Compositions C1 to C10 are prepared by successive additions of ingredients, under stirring. The ingredients are introduced in the following order:

[0235] 1) water,

[0236] 2) cationic conditioning polymer(s),

[0237] 3) pH adjuster (few drops only),

[0238] 4) amphoteric surfactant(s),

[0239] 5) non-ionic surfactant(s), if present,

[0240] 6) anionic surfactant(s), if present,

[0241] 7) preservatives, and

[0242] 8) pH adjuster until reaching a targeted pH value between 5 and 5.5.

[0243] The details of the compositions are given in table 1 below. The contents are expressed in % by weight, with respect to the total weight of the compositions. Regarding the surfactants, the contents are expressed with respect to total the content of active ingredient(s) introduced in the composition (and not of the whole commercial product).

[0244] Compositions C1 to C10 are shampoo compositions, while composition C11 is a (non-rinsed) foaming composition for styling.

[0245] Compositions C1 , C3, C5, C7, C9, C10 and C11 are according to the invention.

[0246] Compositions C2*, C4*, C6* and C8* are comparative.

[0247] Table 1 > details of the compositions

[0248] ’ ratio between the weight of salt incorporated in the composition (notably by the surfactants) and the weight of amphoteric surfactant (active ingredient only) present in the composition,

[0249] 2ratio between the weight of amphoteric surfactant (active ingredient only) present in the composition and the weight of anionic surfactant (active ingredient only) present in the composition.

[0250] III - Performances of the compositions

[0251] 1. Compositions C1 and C2*

[0252] The performances of compositions C1 and C2* were visually assessed as follows:

[0253] 1.1. After natural drying at a humidity level of 50% and 80%

[0254] A tress of 10 g of mixed-race Curly 3 hair is treated using the composition to be evaluated according to the following protocol:

[0255] 1) the tress is wetted using a water flow (100 mL / second) heated at a temperature equal to 37°C for 1 minute

[0256] 2) the tress is shampooed using 1.8 mL of the composition to be evaluated for 1 minute and 15 seconds (104 cps / min),

[0257] 3) the tress is rinsed (58 cps / min) with a water flow (100 mL / second) heated at a temperature equal to 37°C for 1 minute and 30 seconds,

[0258] 4) the tress is then squeezed dry and untangled using large-comb teeth (4 runs), and

[0259] 5) each tress is let drying (natural drying) overnight in a climatic chamber at a constant humidity level and temperature (50% humidity level, 21 °C).

[0260] The aspect of the tresses is visually assessed by the operator.

[0261] Photographs of the tresses taken immediately after the overnight drying are reproduced in Figure 1 : the tress treated using composition C1 is represented in Figure 1a, while the tress treated using composition C2* is represented in Figure 1b.

[0262] The behavior of the tresses in humid conditions is then evaluated by placing them in a climatic chamber at a constant humidity level equal to 80% and at constant temperature equal to 25°C, for 24 hours.

[0263] The aspect of the tresses is visually assessed by the operator.

[0264] Photographs of the tresses after 24 hours in the climatic chamber (80% humidity level, 25°C) are reproduced in Figure 2: the tress treated using composition C1 is represented in Figure 2a, while the tress treated using composition C2* is represented in Figure 2b. Whatever the humidity rate (50% or 80%), we observe a better hair discipline and curl definition for the tress treated with composition C1 , with respect to the tress treated with composition C2*.

[0265] 1.2. Behavior of the tresses after straightening

[0266] The protocol as detailed in 1.1. is repeated with new tresses of 10 g of mixed- race Curly 3 hair. Further to the overnight drying (at a 50% humidity level, 21 °C), the tresses are straightened using a same straightening iron heated at a temperature of 230°C, with 5 iron strokes per tress.

[0267] The aspect of the tresses is visually assessed by the operator immediately after straightening.

[0268] Photographs of the tresses after straightening are reproduced in Figure 3: the tress treated using composition C1 is represented in Figure 3a, while the tress treated using composition C2* is represented in Figure 3b.

[0269] The tresses are then placed in a climatic chamber at constant temperature (25°C) and constant humidity level (80%) for 1 hour, and then for 24 hours cumulated.

[0270] The aspect of the tresses is visually assessed by the operator at each step.

[0271] Photographs of the tresses after 1 hour in the climatic chamber (80% humidity level, 25°C) are reproduced in Figure 4: the tress treated using composition C1 is represented in Figure 4a, while the tress treated using composition C2* is represented in Figure 4b.

[0272] Photographs of the tresses after 24 hours in the climatic chamber (80% humidity level, 25°C) are reproduced in Figure 5: the tress treated using composition C1 is represented in Figure 5a, while the tress treated using composition C2* is represented in Figure 5b.

[0273] After flat iron straightening and extended storage at a humidity level of 80%, we observe a better robustness of "styling" over humidity and over time for the tress treated with Composition C1 , with respect to the tress treated with composition C2*. This improved robustness of “styling” consists notably in a better hair discipline and a better curl definition, compared to the foamy and frizzy aspect observed with composition C2*.

[0274] 2. Compositions C3 and C4*

[0275] The performances of compositions C3 and C4* were assessed as follows:

[0276] 2.1. Visual assessment after natural drying at a humidity level of 50%

[0277] For each composition to be evaluated, 3 tresses of 2.7 g of mixed-race Curly 3 hair are treated using the composition to be evaluated according to the following protocol with 2 successive cleanings:

[0278] 1) the tress is wetted using a water flow (60 mL / s) heated at a temperature equal to 37°C for 1 minute

[0279] 2) each tress is shampooed using 300 mg of the composition to be evaluated for 45 seconds,

[0280] 3) each tress is rinsed with a water flow (60 mL / s) heated at a temperature equal to 37°C for 30 seconds (5 soft finger movements),

[0281] 4) each tress is shampooed again using 300 mg of the composition to be evaluated for 45 seconds,

[0282] 5) each tress is rinsed with a water flow (60 mL / s) heated at a temperature equal to 37°C for 30 seconds (5 soft finger movements),

[0283] 6) each tress is then squeezed dry and untangled using large-comb teeth (4 runs),

[0284] 7) each tress is wetted again for 2 seconds with a water flow (60 mL / s) heated at a temperature equal to 37°C,

[0285] 8) each tress is finger-dried, and

[0286] 9) each tress is let drying (natural drying) overnight in a climatic chamber at a constant humidity level and temperature (50% humidity level, 21 °C).

[0287] The aspect of the tresses is visually assessed by the operator.

[0288] Photographs of the tresses taken immediately after the overnight drying are reproduced in Figure 6: the tresses treated using composition C3 are represented in Figure 6a, while the tresses treated using composition C4* are represented in Figure 6b. We observe a better hair discipline and curl definition for the tresses treated with composition C3, compared to those treated with compositions C4*.

[0289] 2.2. Measurement of the volume variations of the tresses over time when placed in a humid environment.

[0290] The behavior of the tresses in humid conditions is then evaluated by measuring the volume increase of the tresses over time when placed in a humid environment (80% humidity level).

[0291] The measurements are carried out using a BOLERO equipment supplied by BOSSA NOVA TECHNOLOGIES. The BOLERO equipment is an imaging system dedicated to discriminate fly-away / frizz fibers from the bulk of hair swatches using light transmission variations to evaluate hair density. It is composed of a camera, a motorized support allowing 360° rotation around the sample and a backlight. For each sample, the BOLERO equipment acquires 36 different images over 360° of the sample at 10° intervals. The 3D shape of the tress is then reconstructed from the 36 images by the BOLERO software. The total volume of the tress is then calculated by the software as the sum of the bulk volume and of the “Fly- away / frizz” volume (or FAF volume).

[0292] The measurement is carried out as follows:

[0293] The initial volume of each the tress (before any treatment with the compositions to be evaluated, but after the preparation as detailed in section I above) is measured using the BOLERO equipment. These initial volumes constitute the references to calculate the variations of volume of the tresses over time.

[0294] For each composition to be evaluated, 3 tresses are treated according to the cleaning protocol detailed in 2.1 above. Further to the overnight drying (at a 50% humidity level, 21°C), the volume of tresses is measured using the BOLERO equipment (value at t=0). The tresses are then placed in a climatic chamber at a constant temperature (25°C) and constant humidity level (80%). The volume of each tress is then measured using the BOLERO equipment after 2 hours, 4 hours and 24 hours in the climatic chamber.

[0295] For each tress, the variation of volume from the initial volume (before treatment) is then calculated at t=0, t=2 hours, t=4 hours and t=24 hours. Then, and for each composition, an average volume variation value is calculated at t=0, t=2 hours, t=4 hours and t=24 hours as an average of the values obtained from the 3 tresses (treated with this specific composition).

[0296] Results are presented in Figures 7 and 8.

[0297] Figure 7 represents the evolution of the Total volume variation of the tresses (expressed as a percentage of the initial Total volume of the tresses) over time (expressed in hours) when placed in a humid environment (80% humidity level, 25°C). The continuous curve relates to the tresses treated with composition C3, while the dashed curve relates to the tresses treated with composition C4*.

[0298] Figure 8 represents the evolution of the FAF volume variation of the tresses (expressed as a percentage of the initial FAF volume of the tresses) over time (expressed in hours) when placed in a humid environment (80% humidity level, 25°C). The continuous curve relates to the tresses treated with composition C3, while the dashed curve relates to the tresses treated with composition C4*.

[0299] A t=0, we observe that the reduction of volume (Total Volume and FAF volume) associated with composition C3 is significantly higher than the reduction of volume associated with composition C4*. Hair discipline is thus higher with composition C3.

[0300] We also observe that a humid environment has a more moderate impact on hair discipline for tresses treated with composition C3, with respect to tresses treated with composition C4*. Indeed, both the variations of Total Volume and FAF volume overtime are significantly reduced for the tresses treated with composition C3, with respect to those treated with composition C4*. This means a better robustness of curl definition, lower frizz & foamy aspect for tresses treated with composition C3, versus those treated with composition C4*.

[0301] 3. Compositions C5 and C6*

[0302] The performances of compositions C5 and C6* were assessed using the same protocols as those used above for compositions C3 and C4*. 3.1. Visual assessment after natural drying at a humidity level of 50%

[0303] Just after the overnight drying of the tresses (50% humidity level, 21°C), we observe that tresses treated with composition C5 have a better hair discipline, with a nice curl definition and no fly away, whereas tresses treated with compositions C6* have a more foamy / frizzy appearance with a poorer curl definition and poorer hair discipline & styling.

[0304] 3.2. Measurement of the volume variations of the tresses over time when placed in a humid environment.

[0305] The protocol detailed in section III.2.2 is reproduced using compositions C5 and C6*.

[0306] Results are presented in Figures 9 and 10.

[0307] Figure 9 represents the evolution of the Total volume variation of the tresses (expressed as a percentage of the initial Total volume of the tresses) over time (expressed in hours) when placed in a humid environment (80% humidity level, 25°C). The continuous curve relates to the tresses treated with composition C5, while the dashed curve relates to the tresses treated with composition C6*.

[0308] Figure 10 represents the evolution of the FAF volume variation of the tresses (expressed as a percentage of the initial FAF volume of the tresses) over time (expressed in hours) when placed in a humid environment (80% humidity level, 25°C). The continuous curve relates to the tresses treated with composition C5, while the dashed curve relates to the tresses treated with composition C6*.

[0309] Whatever volume variations considered (FAF Volume as well as Total volume), we notice a higher reduction of volume for tresses treated with composition C5, with respect to those treated with compositions C6*.

[0310] Composition C5 offers a better robustness of overall hair discipline, as compared to composition C6*. Further, a more important FAF Volume reduction, notably after a long period of time in a humid environment, is observed for tresses treated with composition C5, with respect to those treated with composition C6*, meaning a lower frizzy foamy effect. 4. Compositions C7 and C8*

[0311] The performances of compositions C7 and C8* were assessed on a Hairdresser Salon on 3 Models with textured Hair (from Type 2b to Type 3c according to Andre Walker Hair Typing System).

[0312] A same protocol is applied for the 3 models and comprises the following steps:

[0313] 1) half head of the Model is treated using composition C7, while the other half head of the Model is treated using composition C8*,

[0314] 2) the whole head of the Model is rinsed uniformly,

[0315] 3) a same conditioner is applied on whole head of the Model, and then rinsed off uniformly, and

[0316] 4) a same leave-on styling product is applied uniformly on the whole head of the Model.

[0317] Photographs of the 3 Models taken at the end of the above-detailed protocol are represented in Figure 11 : Figure 11 a is a photography of Model 1 , Figure 11b is a photography of Model 2 and Figure 11c is a photography of Model 3. On each photography, the left half-head of the model has been treated with composition C7, while the right half-head has been treated with composition C8*.

[0318] At the final state of the routine and after drying, a clear benefit of composition C7, over composition C8*, remains visible on the 3 Models.

[0319] We observe on the half head treated with composition C7 a better hair discipline, less frizzing, better curls definitions and regularity, more homogeneous curls and a good bounce (both wet and dry), with respect to the other half head treated with composition C8*.

[0320] 5. Compositions C9 and C10

[0321] The performances of compositions C9 and C10 were assessed on a Hairdresser Salon on 1 Model with textured Hair (type 4 according to Andre Walker Hair Typing System).

[0322] The protocol of application is as follows:

[0323] 1 ’) half head of the Model is treated using composition C9, while the other half head of the Model is treated using composition C10,

[0324] 2’) the whole head of the Model is rinsed uniformly,

[0325] 3’) the whole head is dried,

[0326] 4’) a same conditioner is applied on the whole head of the Model, and then rinsed off uniformly, and

[0327] 5’) the whole head is finally dried.

[0328] Photographs of the Model all-along the above-detailed protocol are represented in Figure 12: photography 12a was taken after drying, directly after having rinsed off the shampoo (at the end of step 3’), before the conditioner application), and photography 12b was taken after final drying of hair (at the end of step 5’)).

[0329] On the photography, the left half-head of the model has been treated with composition C9, while the right half-head has been treated with composition C10.

[0330] In both cases, we observe good hair discipline, notably good curl definition and good frizz management. Both compositions are therefore satisfying.

[0331] Composition C10, with a higher amount of anionic surfactant, offers a better sensorial experience, notably in terms of suppleness, softness and pearl- bounced, the hair treated with composition C9 being slightly more rigid.

[0332] 6. Compositions C11

[0333] The performances of compositions C11 were assessed on a Hairdresser Salon on 1 Model with textured Hair (type 3A - 3B according to Andre Walker Hair Typing System).

[0334] Composition C11 is applied on Model’s dry hair.

[0335] Photographs of the Model before and after treatment with composition C11 are represented in Figure 13: photography 13a was taken before the application of composition C11 , while photography 13b was taken after having applied composition C11 on model’s hair.

[0336] After treatment, hair has better hair discipline, notably better curl definition and better frizz management. The treated hair also has an excellent rebound.

Claims

CLAIMS1. A personal care composition comprising:- at least one amphoteric surfactant,- at least one cationic conditioning polymer,- optionally, at least one anionic surfactant, provided that when said at least one anionic surfactant is present, the weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant is greater or equal to 1 : 1 , wherein said composition comprises less than 3% by weight of salts, with respect to the total weight of the composition, and less than 20% by weight of said salts, with respect to the total weight of said at least one amphoteric surfactant.

2. The personal care composition according to claim 1 , wherein the amphoteric surfactant is chosen from the group consisting of betaine surfactants, alkyl amphoacetate surfactants, alkyl amphodiacetate surfactants sultaines surfactants and mixtures thereof, preferably from alkyl dimethyl betaines, lauramidopropyl betaine, cocoamidopropyl betaine, and any combinations thereof, more preferably chosen from alkyl dimethyl betaines, even more preferably is coco betaine.

3. The personal care composition according to claim 1 or 2, comprising at least one anionic surfactant chosen from the group consisting of sodium, ammonium or potassium salts of isethionates; sodium, ammonium or potassium salts of sulfonates; sodium, ammonium or potassium salts of ether sulfonates; sodium, ammonium or potassium salts of sulfosuccinates; sodium, ammonium or potassium salts of sulfoacetates; sodium, ammonium or potassium salts of glycinates; sodium, ammonium or potassium salts of sarcosinates; sodium, ammonium or potassium salts of glutamates; sodium, ammonium or potassium salts of alaninates; sodium, ammonium or potassium salts of carboxylates; sodium, sodium, ammonium or potassium salts of taurates; sodium, ammonium or potassium salts of phosphate esters; and combinations thereof, preferably from sodium salts of taurates, more preferably from sodium methyl cocoyl taurate, sodium methyl oleyl taurate and combinations thereof.

4. The personal care composition according to any of the preceding claims, wherein the cationic conditioning polymer is chosen from cationic guar polymers, cationic non-guar galactomannan, synthetic cationic polymers, cationic cellulose polymers and combinations thereof, preferably is chosen from the group consisting of: guar hydroxypropyl trimonium chloride, hydroxypropyl guar hydroxypropyl trimonium chloride, polymethacrylamido-propyltrimonium halides, salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, and combinations thereof.

5. The personal care composition according to any of the preceding claims, wherein weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant ranges from 1 :1 to 10:1 , preferably from 1 :1 to 5:1.

6. The personal care composition according to any of the preceding claims, comprising less than or equal to 2% by weight of salts, with respect to the total weight of the composition.

7. The personal care composition according to any of the preceding claims, wherein said salts are chosen from the group consisting of: ammonium and / or alkali and / or alkaline-earth halides, ammonium and / or alkali and / or alkaline-earth sulfates, ammonium and / or alkali and / or alkaline-earth sulfonates, ammonium and / or alkali and / or alkaline-earth phosphates, ammonium and / or alkali and / or alkaline-earth phosphonates, and any combinations thereof.

8. The personal care composition according to any of the preceding claims, comprising less than or equal to 20% by weight of surfactants, with respect to the total weight of the composition, preferably less than 15% by weight.

9. The personal care composition according to any of the preceding claims, having a pH value inferior or equal to 6.5, preferably ranging from 4.5 to 6.5.

10. The personal care composition according to any of the preceding claims, wherein the composition is a hair care composition, preferably a shampoo composition or a foaming composition for styling.

11. Use of a personal care composition according to any of the preceding claims for improving hair manageability.

12. Use according to claim 11 , for improving at least one of the following aspects of hair, preferably of curly and / or textured hair:- hair styling, notably curly and / or textured hair styling, - hair definition, notably curly and / or textured hair definition,- curl retention of hair,- frizz and fly-away control,- hair shine, and- hair volume control.

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