COMPOSITIONS AND PROCESSES FOR CLEANING KERATINOUS MATERIALS

Abstract

COMPOSITIONS AND PROCESSES FOR CLEANSING KERATINOUS MATERIALS. The disclosure relates to compositions having (a) a surfactant system comprising (i) a first anionic surfactant, (ii) at least one second anionic surfactant different from the first anionic surfactant, and (iii) optionally at least one amphoteric surfactant, (b) at least one anti-dandruff active agent, and (c) water, in which the compositions are free or substantially free of sulfate-based surfactants, and to processes for using the compositions. The compositions are cleansing compositions that can be used in processes for cleaning keratinous materials, such as hair. Figure for the abstract: none

Description

Title of the invention: COMPOSITIONS AND METHODS FOR CLEANING KERATINOUS MATERIALS technical field

[0001] The disclosure relates to compositions for cleaning keratinous materials and methods for using the compositions. The compositions include at least one anti-dandruff active agent and are free or substantially free of sulfate-based surfactants. CONTEXT

[0002] Personal care cleansing compositions such as shampoo, foaming gel, facial cleanser, etc., use anionic cleansing surfactants to remove sebum and exogenous contaminants such as dirt, makeup, styling products, etc., from the surface of keratinous materials such as skin and hair. When present at concentrations above the critical micellar concentration, the majority of surfactant molecules self-assemble into micelles that have a highly negative surface charge, allowing the surfactants to solubilize hydrophobic components in the aqueous phase of the composition, which are then removed from the keratinous material.

[0003] Typically, personal care cleansing compositions use sulfate-based anionic surfactants such as sodium lauryl sulfate (SLS) or sodium lauryl ether sulfate (SLES). These surfactants are commonly used because they have good foaming and cleansing properties, allow the composition to be easily thickened to achieve a desired viscosity, and are relatively inexpensive. However, the market is increasingly concerned about the negative effects of these or other sulfate-based surfactants on the skin and body. For example, sulfate-based surfactants tend to dry out hair and skin, strip color-treated hair dye, and can cause skin and eye irritation. In addition, SLES can contain dioxanes, byproducts generated during the manufacturing process, which are considered carcinogenic at fairly high levels.As such, skin and hair cleansing compositions that are free or essentially free of sulfate-based surfactants are becoming increasingly desirable for consumers.

[0004] However, there are challenges in developing suitable personal care cleansing formulas without sulfate-based surfactants. For example, most existing sulfate-free personal care cleansers do not lather well, which is considered a significant drawback by consumers. Furthermore, the Cleansing compositions containing anionic surfactants that are not sulfate-based do not thicken easily. Traditional methods for increasing the viscosity of these formulations are ineffective with sulfate-free surfactants. Furthermore, some anionic cleansing surfactants that are effective cleansers are undesirable for use in personal care compositions because their aggressive nature can strip hair or skin of natural components necessary for healthy function, negatively impacting, for example, the integrity of the skin barrier.

[0005] Furthermore, some non-sulfate cleansing surfactants are ineffective at depositing active agents and conditioning components, such as moisturizing agents, onto treated keratinous materials. This is particularly problematic when addressing a specific issue such as dandruff. Unattractive, as well as a source of stress and itching, dandruff appears when there is an increase in natural shedding of the scalp, resulting in a visible accumulation of white flakes. This condition affects nearly half the world's population, with the highest incidence among people aged 15 to 34.

[0006] The appearance of dandruff is linked to an overgrowth of Malassezia yeast and an imbalance between the bacterial and fungal communities on the scalp. The yeast leads to the production of defense substances (cytokines) by keratinocytes, with the M. restricta species being particularly virulent. Sebum, a key nutrient for the scalp's inhabitants, produces oxidation products. These harmful substances can promote accelerated cell renewal, leading to the formation of dandruff. Disorganized and depleted, the stratum corneum no longer performs its protective role. To treat this condition, many people turn to anti-dandruff shampoo formulations.

[0007] Thus, there is a need to develop personal care cleansing compositions that are free or substantially free of sulfate-based surfactants, lather adequately, have a desired viscosity, and are effective in delivering active agents and conditioning components to keratinous materials. However, this requires careful balancing of the components to ensure that the properties of the cleansing composition and the properties imparted to keratinous materials meet consumer needs. Unfortunately, such a balance has been difficult to achieve so far, as efforts to achieve certain properties of the cleansing composition, such as lathering or thickness, have interfered with efforts to achieve certain cosmetic properties imparted by the composition, such as moisture or hydration.

[0008] It has now been found that by using a unique combination of surfactants, personal care cleansing compositions that are free or substantially free of sulfate-based surfactants can be prepared, which exhibit a surprisingly abundant, thick and creamy lather and desirable viscosity, while also providing excellent cosmetic properties to the hair such as detangling, ease of application, voluptuous hair feel, volume, bounce, ease of styling and / or frizz control, while also providing anti-dandruff benefits to the hair and scalp. SUMMARY

[0009] The disclosure relates to compositions for cleaning keratinous materials and methods for using the compositions. The compositions are free or substantially free of sulfate-based surfactants, but surprisingly generate abundant foam.

[0010] In various embodiments, the compositions comprise (a) a surfactant system including (i) a first anionic surfactant selected from sulfate-derived anionic surfactants, and (ii) at least one second anionic surfactant different from the first anionic surfactant, (b) at least one anti-dandruff active agent, and (c) water. The surfactant system optionally further comprises (iii) at least one amphoteric surfactant and / or (iv) at least one nonionic and / or cationic surfactant. The compositions optionally further comprise additional components such as conditioning agents, thickening agents, and / or auxiliary agents. The compositions are free from or substantially free from sulfate-based surfactants.

[0011] In other embodiments, the compositions comprise (a) a surfactant system including (i) a first anionic surfactant selected from sulfate-derived anionic surfactants, (ii) at least one second anionic surfactant different from the first anionic surfactant, (iii) optionally at least one amphoteric surfactant, and (iv) optionally at least one nonionic surfactant, (b) at least one anti-dandruff active agent, (c) water, and (d) optionally at least one additional component selected from conditioning agents, thickening agents, and / or auxiliary agents. The compositions are free or substantially free of sulfate-based surfactants and may be free or substantially free of cocamidopropyl betaine.In various embodiments, the first anionic surfactant is selected from alkyl sulfonates, sulfosuccinates, sulfoacetates, or their salts, for example, olefin sulfonates such as C10-C24 olefin sulfonates and / or their salts. In various embodiments, at least one second anionic surfactant is selected from alkyl sulfonates, sulfosuccinates, isethionates, sulfoacetates, alkoxylated monoacids, acyl taurates, acyl glycinates, etc. acyl glutamates, acyl sarcosinates, their salts, or combinations of two or more of these, for example, alkyl sulfosuccinates, alkyl sulfoacetates, acyl sarcosinates, alkoxylated monoacids, and / or their salts. In various embodiments, the total amount of anionic surfactants ranges from about 0.5% to about 15% by weight, relative to the total weight of the composition. In various embodiments, the composition comprises at least one amphoteric surfactant selected from betaines, alkyl sultaines, alkyl amphoathetas, amphopropionates, their salts, or combinations of two or more of these. In various embodiments, the total amount of amphoteric surfactants ranges from about 0.5% to about 10% by weight, relative to the total weight of the composition.In some embodiments where the composition includes one or more amphoteric surfactants, the compositions have a weight ratio between the total amount of first and second anionic surfactants and the total amount of amphoteric surfactant(s) that is less than about 10:1, for example, ranging from about 1:1 to about 10:1, such as from about 1:1 to about 9:1, from about 1:1 to about 8:1, from about 1:1 to about 7:1, from about 1:1 to about 6:1, from about 1:1 to about 5:1, from about 1:1 to about 4:1, or from about 1:1 to about 3.5:1. In various embodiments, the compositions include at least one conditioning agent selected from cationic conditioning agents, silicone compounds, non-silicone fatty compounds, or combinations thereof. In various embodiments, the compositions include at least one polysaccharide-based thickening agent.

[0012] In still other embodiments, the compositions comprise (a) a surfactant system comprising (i) a first anionic surfactant selected from C10-C24 olefin sulfonates and / or their salts, (ii) at least one second anionic surfactant selected from alkyl sulfosuccinates, alkyl sulfoacetates, acyl sarcosinates, alkoxylated monoacids, their salts, or combinations of two or more of these, (iii) optionally at least one amphoteric surfactant, and (iv) optionally at least one nonionic surfactant, (b) at least one anti-dandruff active agent, (c) water and (d) at least one additional component selected from revitalizing agents, thickening agents and / or auxiliary agents. The compositions are free or substantially free of sulfate-based surfactants and optionally free or substantially free of cocamidopropyl betaine.

[0013] In other embodiments, the compositions comprise (a) a surfactant system comprising (i) a first anionic surfactant comprising a sodium C14-16 olefin sulfonate, (ii) at least one second anionic surfactant selected from disodium laureth sulfosuccinate, sodium lauryl sulfoacetate, sodium lauroyl sarcosinate, or combinations of two of these or plus, (iii) optionally at least one amphoteric surfactant selected from cocamidopropyl hydroxysultaine, disodium cocoamphodiacetate, cocobetaine, or combinations of two or more of these, and (iv) optionally at least one nonionic surfactant, (b) at least one anti-dandruff active agent, (c) water, and (d) at least one additional component selected from conditioning agents, thickening agents, and / or auxiliary agents. The compositions are free or substantially free of sulfate-based surfactants and optionally free or substantially free of cocamidopropyl betaine.

[0014] The disclosure further relates to methods of using the compositions, the methods including applying the compositions to keratinous materials and rinsing the keratinous materials. For example, the compositions may be shampoo compositions and the methods may be hair cleansing methods. BRIEF DESCRIPTION OF THE FIGURES

[0015] [Fig.1] Fig.1 shows a comparison of the properties of hair subjected to a shampooing and conditioning routine using a sulfate-free anti-dandruff shampoo composition according to the disclosure versus a commercially available sulfate-free anti-dandruff shampoo composition.

[0016] [Fig.2] Fig.2 shows images of hair strands cleaned with anti-dandruff shampoo compositions according to the disclosure and a hair strand cleaned with a commercially available anti-dandruff shampoo composition. DETAILED DESCRIPTION

[0017] The disclosure relates to compositions for cleaning keratinous materials, and processes for cleaning keratinous materials with these compositions. The compositions are free or substantially free of sulfate-based surfactants, but have surprisingly good foaming and viscosity properties, and offer desirable cosmetic benefits to keratinous materials. COMPOSITIONS

[0018] The compositions according to the disclosure include (a) a surfactant system comprising (i) a first anionic surfactant, (ii) at least one second anionic surfactant different from the first anionic surfactant, (b) at least one anti-dandruff active agent, and (c) water. The surfactant system may optionally further comprise one or more nonionic surfactants, amphoteric surfactants, and / or cationic surfactants, and the compositions may optionally comprise additional components such as conditioning agents, thickening agents, active agents, emulsifiers, and auxiliary components. compositions are free or essentially free of sulfate-based surfactants. Surfactant system

[0019] The compositions according to the disclosure comprise a surfactant system that includes combinations of non-sulfate-based surfactants. The combination of certain types and quantities of surfactants provides the compositions with surprisingly advantageous properties and allows for successful deposition of components onto keratinous materials, such as the scalp and / or hair fibers, which provide anti-dandruff and cosmetic benefits. Anionic surfactants

[0020] The compositions according to the disclosure comprise a first anionic surfactant selected from sulfated surfactants, and at least one second anionic surfactant different from the first anionic surfactant. Salts of anionic surfactants are expressly included, whether or not they are mentioned.

[0021] In some embodiments, the second anionic surfactant comprises one or more sulfated surfactants, and in some embodiments, the second anionic surfactant comprises one or more surfactants that are not sulfated. For example, the second anionic surfactant may comprise one or a combination of sulfated anionic surfactants, may comprise a combination of sulfated and non-sulfated anionic surfactants, or may comprise one or a combination of anionic surfactants that are not sulfated. Thus, the use of the vocabulary "a first anionic surfactant chosen from among the sulfo-derived surfactants" should be understood as meaning that the first anionic surfactant may not be the only sulfo-derived surfactant present, for example in the case where one or more of the second anionic surfactant(s) are also sulfo-derived.

[0022] Sulfo-derived surfactants are understood as surfactant compounds containing a sulfonate group. Examples of useful sulfo-derived surfactants include, but are not limited to, sulfosuccinates, sulfoacetates, isethionates, and alkyl sulfonates, which include, for example, alkyl aryl sulfonates, aryl alkyl sulfonates, alkyl ester sulfonates, and olefin sulfonates. For example, primary alkane disulfonates, alkene sulfonates, hydroxyalkane sulfonates, alkyl glyceryl ether sulfonates, alkylphenol polyglycol ether sulfonates, alkylbenzenesulfonates, phenylalkanesulfonates, alkene sulfonates, hydroxyalkanesulfonates and disulfonates, secondary alkane sulfonates, paraffin sulfonates, ester sulfonates, glycerol esters of sulfonated fatty acids, and / or alpha-sulfo fatty acid methyl esters including methyl ester°sulfonate, may be chosen.

[0023] Useful, but not limiting, alkyl sulfonates include those of formula (I): O

[0024] (I)

[0025] in which:

[0026] - R is chosen from H or an alkyl chain that has 1 to 24 carbon atoms, of preferably 6 to 24 carbon atoms, more preferably 8 to 20 carbon atoms, said chain being saturated or unsaturated, linear or branched, substituted or unsubstituted, and

[0027] - M+ is chosen from any suitable monovalent cation.

[0028] In some embodiments, in formula (I), the useful cations are alkali metal ions, such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions.

[0029] In some cases, the alkyl sulfonate(s) are selected from linear or branched C1-C30, C2-C28, or C4-C24 alkyl sulfonates, for example, C8-C16 alkylbenzene sulfonates, C10-C20 paraffin sulfonates, C10-C24 olefin sulfonates, their salts, or mixtures thereof. In some preferred embodiments, C10-C24, C12-C20, or C12-C18 olefin sulfonates and / or their salts may be selected. A non-limiting example of a C10-C24 olefin sulfonate that may be used is sodium C16 olefin sulfonate.

[0030] Alkyl sulfosuccinates can, for example, be selected from C2-C30 alkyl sulfosuccinates, such as linear or branched C4-C30, C6-C30, or C8-C30 alkyl sulfosuccinates. Non-limiting examples of useful alkyl sulfosuccinates and their salts include those of formula (II): (II) O v .___h _ _ It k. "ï fi f.■ 1 f "• ​​t ------ï ! CJ 14 Eyelash *7 ~ K y O

[0031] in which:

[0032] - R is a straight-chain or branched alkyl or alkenyl group having 10 to 22 atoms of carbon, preferably 10 to 20 carbon atoms;

[0033] - x is a number that represents the average degree of ethoxylation, and can range from 0 to about 5, preferably from 0 to about 4, and most preferably from about 2 to about 3.5; and

[0034] - the M's, which may be identical or different, are chosen from any suitable monovalent cation.

[0035] In some embodiments in formula (II), the useful cations are alkali metal ions, such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions.

[0036] Non-limiting examples of alkyl sulfosuccinate salts include oleamido MIPA disodium sulfosuccinate, oleamido MEA disodium sulfosuccinate, lauryl sulfosuccinate disodium, laureth sulfosuccinate disodium, diammonium lauryl sulfosuccinate, diammonium laureth sulfosuccinate, sodium dioctyl sulfosuccinate, oleamide MEA disodium sulfosuccinate, sodium dialkyl sulfosuccinate, or mixtures thereof.

[0037] Alkyl sulfoacetates can, for example, be selected from C2-C30 alkyl sulfoacetates, such as C4-C30, C6-C30, or C8-C30 alkyl sulfoacetates, linear or branched. Non-limiting examples of alkyl sulfoacetates and their salts include C4-C18 fatty alcohol sulfoacetates and / or their salts. In some embodiments, a sulfoacetate salt is sodium lauryl sulfoacetate. Useful cations for the salts include alkali metal ions, such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions.

[0038] Non-limiting examples of useful acyl isethionates and their salts include those of formula (III):

[0039] RCOOCHR'CHR2X M+ (III)

[0040] in which:

[0041] - R, R1, and R2 are each independently chosen from H or an alkyl chain having 1 to 24 carbon atoms, said chain being saturated or unsaturated, linear or branched;

[0042] - X is SO3; and

[0043] - M is any suitable cation.

[0044] Although the cation in formula (III) can be chosen from any suitable cation, including, for example, alkali metal ions such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions, sodium is a preferred cation.

[0045] In various embodiments, RCO- represents the acidic fraction of coconut. Non-limiting examples of acyl isethionates include sodium cocoyl isethionate, sodium lauroyl isethionate, sodium lauroyl methyl isethionate, and sodium cocoyl methyl isethionate.

[0046] Other useful non-sulfate anionic surfactants include, for example, alkoxylated monoacids and acyl amino acids such as acyl taurates, acyl glycinates, acyl glutamates, acyl sarcosinates, and their salts and mixtures.

[0047] Non-limiting examples of alkoxylated monoacids include compounds corresponding to formula (IV):

[0048] RO[CH2O]u[(CH2)xCH(R')(CH2)y(CH2)zO]v[CH2CH2O]wCH2COOH(IV)

[0049] in which:

[0050] - R is a hydrocarbon radical containing from approximately 6 to approximately 40 atoms of carbon;

[0051] - R' represents hydrogen or an alkyl group; and

[0052] - u, v and w, which may be identical or different, represent independently numbers from 0 to 60;

[0053] - x, y and z, which may be identical or different, represent independently numbers from 0 to 13; and

[0054] the sum of x + y + z > 0.

[0055] The compounds corresponding to formula (IV) can be obtained by alkoxylation of R-OH alcohols with ethylene oxide as the sole alkoxide, or with several alkoxides and subsequent oxidation. The numbers u, v, and w each represent the degree of alkoxylation. While at the molecular level, the numbers u, v, and w and the total degree of alkoxylation can only be integers, including zero, at the macroscopic level, they are average values ​​in the form of fractional numbers.

[0056] In formula (IV), R is linear or branched, acyclic or cyclic, saturated or unsaturated, aliphatic or aromatic, substituted or unsubstituted. For example, R is a linear or branched C6-C40 alkyl or alkenyl group, or a C1-C40 alkyl phenyl group, more typically a C8-C22 alkyl or alkenyl group, or a C4-C18 alkyl phenyl group, and even more typically a C12-C18 alkyl or alkenyl group or a C6-C16 alkyl phenyl group. Furthermore, u, v, w, independently of each other, can be chosen from a number from 2 to 20, such as a number from 3 to 17, or a number from 5 to 15. In addition, x, y, z, independently of each other, can be chosen from a number from 0 to 13, such as a number from 1 to 10, or a number from 2 to 8.

[0057] Suitable alkoxylated monoacids include, but are not limited to: 5-butoxynol-carboxylic acid, 19-butoxynol-carboxylic acid, capryleth-4 acid carboxylic acid, capryleth-6 carboxylic acid, capryleth-9 carboxylic acid, ceteareth-25 carboxylic acid, coceth-7 carboxylic acid, pareth-6 carboxylic acid C9-11, pareth-7 carboxylic acid Cl 1-15, pareth-5 carboxylic acid C12-13, pareth-8 carboxylic acid C12-13, pareth-12 carboxylic acid C12-13, pareth-7 carboxylic acid C12-15, pareth-8 carboxylic acid C12-15, pareth-8 carboxylic acid C14-15, deceth-7 carboxylic acid, laureth-3 carboxylic acid, laureth-4 carboxylic acid, laureth-6 carboxylic acid, laureth-8 carboxylic acid, laureth-10 carboxylic acid, laureth-11 carboxylic acid, laureth-12 carboxylic acid, laureth-13 carboxylic acid, laureth-14 carboxylic acid, laureth-17 carboxylic acid, PPG-6-laureth-6 carboxylic acid, PPG-8-steareth-7 carboxylic acid, myreth-3 carboxylic acid, myreth-5 carboxylic acid, nonoxynol-5 carboxylic acid, nonoxynol-8 carboxylic acid, nonoxynol-10 carboxylic acid,octeth-3 carboxylic acid, octoxynol-20 carboxylic acid, oleth-3 carboxylic acid, oleth-6 carboxylic acid, oleth-10 carboxylic acid, PPG-5-ceteth-20, PPG-3-deceth-2 carboxylic acid, capryleth-2 carboxylic acid, ceteth-13 carboxylic acid, deceth-2 carboxylic acid, hexeth-4 carboxylic acid, isosteareth-6 carboxylic acid, isosteareth-11 carboxylic acid, trideceth-3 carboxylic acid, trideceth-6 carboxylic acid, trideceth-8 carboxylic acid, tridecetheth-12 carboxylic acid, tridecetheth-3 carboxylic acid, tridecetheth-4 carboxylic acid, tridecetheth-7 carboxylic acid, tridecetheth-15 carboxylic acid, tridecetheth-19 carboxylic acid, undecetheth-5 carboxylic acid, or mixtures thereof. In some cases, preferred ethoxylated acids include oleth-10 carboxylic acid, laureth-11 carboxylic acid, or mixtures thereof.

[0058] The amino acid acyl acids that can be used include, but are not limited to, amino acid surfactants based on alanine, arginine, aspartic acid, glutamic acid, glycine, isoleucine, leucine, lysine, phenylalanine, serine, tyrosine, valine, sarcosine, threonine, and taurine. A useful cation associated with the amino acid may be sodium or potassium. Alternatively, the cation may be an organic salt, such as triethanolamine (TEA), or a metal salt.

[0059] Non-limiting examples of acyl amino acids include those of formula (V): O R2 Rj (V) R ;--C—N—CH--(C JUX—X'

[0060] in which:

[0061] - R1, R2 and R3 are each independently chosen from H or an alkyl chain having 1-24 carbon atoms, said chain being saturated or unsaturated, linear or branched, substituted or unsubstituted;

[0062] - n ranges from 0 to 30; and

[0063] - X is COO or SO3-,

[0064] Non-limiting examples of acyl taurates include those of formula (VI):

[0065] RCO-NR'CHR^HR^OsNa (VI)

[0066] wherein R, R1, R2 and R3 are each independently selected from H or an alkyl chain having from 1 to 24 carbon atoms, such as from 6 to 20 carbon atoms, or from 8 to 16 carbon atoms, said chain being saturated or unsaturated, linear or branched, substituted or unsubstituted.

[0067] In various embodiments, RCO- represents the acidic fraction of coconut. Non-limiting examples of acyl taurate salts include sodium cocoyl taurate and sodium methyl cocoyl taurate.

[0068] Non-limiting examples of useful acyl glycinates include those of formula (VII): O x+ RC—NHCIbCOONa

[0069] (VII)

[0070] in which:

[0071] - R is an alkyl chain of 8 to 16 carbon atoms, and

[0072] - X+ is chosen from any suitable monovalent cation.

[0073] In some embodiments in formula (VII), useful cations are alkali metal ions, such as sodium or potassium, ammonium ions or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions.

[0074] Non-limiting examples of acyl glycinates include sodium cocoyl glycinate, sodium lauroyl glycinate, sodium myristoyl glycinate, potassium lauroyl glycinate, and potassium cocoyl glycinate.

[0075] Non-limiting examples of useful acyl glutamates include those of formula (VIII): O X+ II RC— NM H(X)CCH2(W'HCOONa

[0076] (VIII)

[0077] in which:

[0078] - R is an alkyl chain of 8 to 16 carbon atoms, and

[0079] - X+ is chosen from any suitable monovalent cation.

[0080] In certain embodiments in formula (VIII), useful cations are alkali metal ions, such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions.

[0081] Non-limiting examples of acyl glutamates include dipotassium capryloyl glutamate, dipotassium undecylenoyl glutamate, disodium capryloyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, potassium capryloyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecylenoyl glutamate, sodium capryloyl glutamate, sodium cocoyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium olivoyl glutamate, sodium palmitoyl glutamate, and stearoyl glutamate. sodium, sodium undecylenoyl glutamate, triethanolamine mono-cocoyl glutamate, triethanolamine lauroyl glutamate and disodium cocoyl glutamate.

[0082] Non-limiting examples of acyl sarcosinates and their salts include potassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate and ammonium lauroyl sarcosinate.

[0083] In various embodiments, the first anionic surfactant selected from among the sulfonated surfactants is chosen from among the olefin sulfonates and / or their salts. In a preferred embodiment, the first anionic surfactant is chosen from among the C10-C24, C12-C20 or C12-C18 olefin sulfonates and / or their salts, for example a Cl4-16 sodium olefin sulfonate.

[0084] In various embodiments, the second anionic surfactant comprises at least one sulfo-derived surfactant, for example selected from alkyl sulfosuccinates, alkyl sulfoacetates, their salts, or mixtures thereof. In other embodiments, the second anionic surfactant comprises at least one surfactant selected from acyl taurates, acyl glycinates, acyl glutamates, acyl sarcosinates, their salts, or mixtures thereof, in particular acyl sarcosinates. In still other embodiments, the second anionic surfactant comprises at least one sulfo-derived surfactant selected from alkyl sulfosuccinates, alkyl sulfoacetates, their salts, or mixtures thereof, and at least one surfactant selected from acyl taurates, acyl glycinates, acyl glutamates, acyl sarcosinates, their salts, or mixtures thereof.

[0085] By way of a non-limiting example of an embodiment, a surfactant system may comprise a first anionic surfactant selected from C10-C24, C12-C20 or C12-C18 olefin sulfonates and / or their salts, for example a C14-16 sodium olefin sulfonate, and at least one second anionic surfactant selected from the surfactants Sulfo-derived surfactants such as alkyl sulfosuccinates, alkyl sulfoacetates, their salts or mixtures thereof. For example, the surfactant system may include (i) a sodium C14-16 olefin sulfonate, and (ii) at least one second anionic surfactant selected from sodium lauryl sulfoacetate and / or disodium laureth sulfosuccinate.

[0086] By way of another non-limiting embodiment, a surfactant system may comprise a first anionic surfactant selected from C10-C24, C12-C20, or C12-C18 olefin sulfonates and / or their salts, for example, a sodium C14-16 olefin sulfonate, and at least two second anionic surfactants selected from alkyl sulfosuccinates, alkyl sulfoacetates, their salts, or mixtures thereof. For example, the surfactant system may comprise (i) a sodium C14-16 olefin sulfonate, and (ii) sodium lauryl sulfoacetate and disodium laureth sulfosuccinate.

[0087] By way of yet another example of a non-limiting exemplary embodiment, a surfactant system may comprise a first anionic surfactant selected from C10-C24, C12-C20, or C12-C18 olefin sulfonates and / or their salts, for example, sodium Cl4-16 olefin sulfonate, and at least one second anionic surfactant selected from acyl taurates, acyl glycinates, acyl glutamates, acyl sarcosinates, their salts, or mixtures thereof, in particular acyl sarcosinates. For example, the surfactant system may comprise (i) sodium C14-16 olefin sulfonate and (ii) sodium lauroyl sarcosinate.

[0088] The total amount of anionic surfactants may vary. For example, the total amount of anionic surfactants may range from about 1% to about 20%, such as from about 1.5% to about 18%, from about 2% to about 15%, from about 2.5% to about 12%, or from about 3% to about 10% by weight, including intermediate ranges and sub-ranges, relative to the total weight of the composition. In various embodiments, the total amount of anionic surfactants can range from about 1% to about 20%, from about 1% to about 18%, from about 1% to about 15%, from about 1% to about 12%, from about 1% to about 10%, from about 1% to about 9%, from about 1% to about 8%, from about 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 about 2% to about 9%, from about 2% to about 8%, from about 3% to about 20%, from about 3% to about 18%,from about 3% to about 15%, from about 3% to about 12%, from about 3% to about 10%, from about 3% to about 9%, from about 3% to about 8%, from about 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 9%, from about 4% to about 8%, from about 5% to about 20%, from about 5% to about 18%, from about 5% to about 15%, from about 5% to about 12%, from about 5% to about 10%, from about 5% to about 9%, from about 5% to about 8%, from about 6% to about 20%, from about 6% to about 18%, from about 6% to about 15%, from about 6% to about 12%, from about 6% to about 10%, from about 6% to about 9%, from about 6% to about 8%, from about 7% to about 20%, from about 7% to about 18%, from about 7% to about 15%, from about 7% to about 12%, from about 7% to about 10%, from about 7% to about 9%, or from about 7% to about 8% by weight, relative to the total weight of the composition.

[0089] The total amount of first and second anionic surfactants can also vary. For example, the total amount of first and / or second anionic surfactants can independently range from about 0.5% to about 15%, such as from about 0.75% to about 12%, from about 1% to about 10%, from about 1.5% to about 8%, or from about 2% to about 7% by weight, including intermediate ranges and sub-ranges, relative to the total weight of the composition. In various embodiments, the total quantity of first and / or second anionic surfactants can independently 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 2% to approximately 12%, from approximately 2% to approximately 11%, from approximately 2% to approximately 10%,from about 2% to about 9%, from about 2% to about 8%, from about 2% to about 7%, from about 2% to about 6%, from about 2% to about 5%, from about 2% to about 4%, from about 2% to about 3%, from about 3% to about 12%, from about 3% to about 11%, from about 3% to about 10%, from about 3% to about 9%, from about 3% to about 8%, from about 3% to about 7%, from about 3% to about 6%, from about 3% to about 5%, 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%, approximately 4% to approximately 6%, or approximately 4% to approximately 5% by weight, relative to the total weight of the composition. Amphoteric surfactants

[0090] The compositions according to the disclosure may optionally include at least one amphoteric surfactant. It should be understood that salts of amphoteric surfactants are expressly included, whether or not they are specified.

[0091] Non-limiting examples of amphoteric surfactants that may be used include alkyl betaines, alkyl sultaines, alkyl amphoacetates, alkyl amphopropionates, or mixtures thereof.

[0092] In various embodiments, by way of non-limiting examples, at least one amphoteric surfactant may comprise betaines or their salts, alkyl betaines, amido betaines, or mixtures thereof. In various embodiments, the compositions

[0093]

[0094]

[0095]

[0096]

[0097]

[0098]

[0099]

[0100]

[0101]

[0102]

[0103] include at least one compound selected from (C8-C20) alkylbetaines, sulfobétaines, (C8-C20) alkylamido (C6-C8) alkylbetaines, (C8-C20) alkylamido (C6-C8) alkylsulfobetaines, their salts, or mixtures thereof. In some embodiments, exemplary useful betaines include, but are not limited to, those of the following formulas (IX)-(XII): F v (IX) x+ '■> fi '3 (X) X I (XI) x + (XII) in which: - R10 is an alkyl group having 8 to 18 carbon atoms; - n is an integer from 1 to 3; and - X+ is a cationic counter-ion. Useful betaines include, for example, coco betaine, cocamidopropyl betaine, cetyl betaine, lauryl betaine, laurylhydroxysulfobetaine, lauryldimethyl betaine, behenyl betaine, capryl / capramidopropyl betaine, stearyl betaine, their salts, or mixtures thereof. Cocobetaine is particularly preferred. In some embodiments, however, the composition is free or substantially free of cocamidopropyl betaine. Non-limiting examples of useful alkyl sultaines include linear or branched alkyl sultaines in the C4-C28, C8-C20, or C8-C18 ranges. For example, alkyl sultaines may be selected from those conforming to the following formula (XIII): J R ç Vj ch3 oh

[0104] (XIII)

[0105] wherein R is an alkyl group having 8 to 18 carbon atony.

[0106] Examples of alkyl sultaines that may be chosen include cocamidopropyl hydroxysultaine and lauryl hydroxysultaine.

[0107] Non-limiting examples of useful alkyl amphoathetas include linear or branched C4-C28, C8-C20, or C8-C18 alkyl amphoathetas. Useful alkyl amphoathetas include, for example, those conforming to formula (XIV):

[0108] (XIV)

[0109] in which R is an alkyl group having from 8 to 18 carbon atoms.

[0110] Examples of alkyl amphoathetas include cocoamphoacetate of sodium, sodium lauroamphoacetate, sodium caproamphoacetate and sodium capryloamphoacetate.

[0111] Non-limiting examples of useful alkyl amphodiacetates include linear or branched C4-C28, C8-C20, or C8-C18 alkyl amphodiacetates. Useful alkyl amphodiacetates include, for example, those conforming to formula (XV): RNG* Na

[0112] (XV)

[0113] in which R is an alkyl group having from 8 to 18 carbon atoms.

[0114] Non-limiting examples of alkyl amphodiacetates include disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caproamphodiacetate, disodium capryloamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caproamphodipropionate, disodium capryloamphodipropionate, lauroamphodipropionic acid and cocoamphodipropionic acid.

[0115] The amphoteric surfactants of this disclosure may be optionally quaternized secondary or tertiary aliphatic amine derivatives, wherein the aliphatic group is a linear or branched chain comprising 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group, for example a carboxylate, sulfonate, sulfate, phosphate or phosphonate group.

[0116] Among the optionally quaternized secondary or tertiary aliphatic amine derivatives that can be used, the products of the respective structures (Al) and (A2) below may also be mentioned:

[0117] Ra-CON(Z)CH2-(CH2)m-N+(Rb)(Rc)(CH2COO-) (Al)

[0118] in which:

[0119] - Ra represents an alkyl or alkenyl group in C1O-C30 derived from an acid Ra- COOH, preferably present in hydrolyzed coconut oil, a heptyl group, a nonyl group, or an undecyl group,

[0120] - Rb represents a [3-hydroxyethyl,

[0121] - Rc represents a carboxymethyl group;

[0122] - m is equal to 0, 1 or 2, and

[0123] - Z represents a hydrogen atom or a hydroxyethyl group or carboxymethyl;

[0124] Ra'-CON(Z)CH2-(CH2)m'-N(B)(B') (A2)

[0125] in which:

[0126] - B represents -CH2CH2OX', with X' representing -CH2-COOH, CH2-COOZ', CH2CH2-COOH, -CH2CH2-COOZ', or a hydrogen atom,

[0127] - B' represents -(CH2)z-Y', z = 1 or 2, and Y' represents COOH, COOZ', CH2-CHOH- SO3H or -CH2-CHOH-SO3Z',

[0128] - is equal to 0, 1 or 2,

[0129] - Z represents a hydrogen atom or a hydroxyethyl group or carboxymethyl,

[0130] - Z' represents an ion resulting from an alkali or alkaline earth metal, such as the sodium, potassium or magnesium; an ammonium ion; or an ion resulting from an organic amine and in particular from an amino alcohol, such as monoethanolamine, diethanolamine and triethanolamine, monoisopropanolamine, diisopropanolamine or triisopropanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol and tris(hydroxymethyl)aminomethane, and

[0131] - Ra' represents an alkyl or alkenyl group in the C1O-C3O position of an acid Ra'COOH preferably present in hydrolyzed linseed oil or coconut oil, an alkyl group, in particular a C17 alkyl group, and its iso form, or an unsaturated C17 group.

[0132] Amphoteric surfactants given by way of example include sodium cocoamphoacetate, sodium lauroamphoacetate, sodium caproamphoacetate, and sodium capryloamphoacetate. Other examples of amphoteric surfactants include disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caproamphodiacetate, disodium capryloamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caproamphodipropionate, disodium capryloamphodipropionate, lauroamphodipropionic acid, and cocoamphodipropionic acid.

[0133] Non-limiting examples that may be cited include cocoamphodiacetate sold by Rhodia under the trade name Miranol® C2M Concentrate, sodium cocoamphoacetate sold under the trade name Miranol Ultra C 32 or the product sold by Chimex under the trade name CHIMEXANE HA.

[0134] Compounds of formula (XVI) can also be used:

[0135] Ra”-NH-CH(Y”)-(CH2)nC(O)-NH-(CH2)n'-N(Rd)(Re) (XVI)

[0136] in which:

[0137] - Ra" represents a C10-C30 alkyl or alkenyl group of an acid

[0138] - Ra"-C(O)OH preferably present in linseed oil or coconut oil hydrolyzed;

[0139] - Y" represents the group -C(O)OH, -C(O)OZ", -CH2-CH(OH)-SO3H or the group CH2-CH(OH)-SO3-Z", Z" representing a cationic counter-ion resulting from an alkali or alkaline earth metal, such as sodium, an ammonium ion or an ion resulting from an organic amine;

[0140] - Rd and Re represent, independently of each other, an alkyl radical or hydroxyalkyl in Cl- C4; and

[0141] - n and n' denote, independently of each other, an integer from 1 to 3.

[0142] In some embodiments, the compositions comprise at least An amphoteric surfactant selected from betaines, alkyl sultaines, alkyl amphodiacetates, their salts, or mixtures thereof. By way of non-limiting example, in some embodiments, the compositions include one or more amphoteric surfactants selected from cocobetaine, cocamidopropyl betaine, cetyl betaine, lauryl betaine, laurylhydroxysulfobetaine, lauryldimethyl betaine, stearyl betaine, cocoamphodiacetate, behenyl betaine, capryl / capramidopropyl betaine, lauryl hydroxysultaine, cocamidopropyl hydroxysultaine, cocoamphodiacetate, their salts, or mixtures thereof. In some embodiments, however, the composition is free from or substantially free from cocamidopropyl betaine.

[0143] In preferred embodiments, the compositions according to the disclosure comprise at least one amphoteric surfactant selected from betaines, alkyl hydroxysultaines, alkyl amphodiacetates, their salts, or combinations thereof. By For example, the amphoteric surfactant(s) can be chosen from cocobetaine, cocamidopropyl hydroxysultaine and / or disodium cocoamphodiacetate.

[0144] If present, the total amount of amphoteric surfactants may vary, but may, for example, range from about 0.5% to about 10%, preferably from about 1% to about 8%, more preferably from about 1.5% to about 6%, most preferably from about 2% to about 5.5% by weight, relative to the total weight of the composition. For example, the amphoteric surfactant may be present in the composition in an amount ranging from approximately 0.5% to approximately 8%, from approximately 0.5% to approximately 7%, from approximately 0.5% to approximately 6%, 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%, from approximately 0.5% to approximately 1%, 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 1.5% to approximately 8%, from approximately 1.5% to approximately 7%, 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 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 2.5% to approximately 8%, from approximately 2.5% to approximately 7%, from approximately 2.5% to approximately 6%, from approximately 2.5% to approximately 5%, from approximately 2.5% to approximately 4%, from approximately 2.5% to approximately 3%, from approximately 3% to approximately 8%, from approximately 3% to approximately 7%, from approximately 3% to approximately 6%, from approximately 3% to approximately 5%, from approximately 3% at approximately 4%, 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 8%, from approximately 5% to approximately 7%, or from approximately 5% to approximately 6% by weight, relative to the total weight of the composition. As an example, amphoteric surfactants may be present in a total amount of approximately 2%.approximately 2.1%, approximately 2.2%, approximately 2.3%, approximately 2.4%, approximately 2.5%, approximately 2.6%, approximately 2.7%, approximately 2.8%, approximately 2.9%, or approximately 3%, including all ranges and subranges using any of the above values ​​as upper and lower limits. As a further example, when present, amphoteric surfactants may be present in a total amount of approximately 5%, approximately 5.1%, approximately 5.2%, approximately 5.3%, approximately 5.4%, approximately 5.5%, approximately 5.6%, approximately 5.7%, approximately 5.8%, approximately 5.9%, or approximately 6%, including all ranges and subranges using any of the above values ​​as upper and lower limits.

[0145] It has been discovered that by choosing not only the types and quantities of anionic and amphoteric surfactants, but also the quantities relative to each other, the properties of the compositions described herein are remarkably improved, for example the ability of the compositions to form a foam and / or to deposit beneficial components on keratinous materials. Therefore, in certain embodiments where the compositions include one or more amphoteric surfactants, it may be particularly advantageous to select quantities of anionic and amphoteric surfactants to obtain a weight ratio between the total quantity of anionic surfactants and the total quantity of amphoteric surfactants that is less than about 10:1, more particularly less than about 9:1, less than about 8:1, less than about 7:1, less than about 6:1, less than about 5:1, less than about 4:1, less than about 3.5:1, less than about 3:1, less than about 2.5:1 or less than about 2:1.

[0146] For example, in some embodiments, the weight ratio between the total quantity of anionic surfactants and the total quantity of amphoteric surfactants ranges from about 1:1 to about 10:1, such as from about 1:1 to about 9:1, from about 1:1 to about 8:1, from about 1:1 to about 7:1, from about 1:1 to about 6:1, from about 1:1 to about 5:1, from about 1:1 to about 4:1, from about 1:1 to about 3.5:1, from about 1:1 to about 3:1, from about 1:1 to about 2.5:1, from about 1:1 to about 2:1, from about 1.5:1 to about 9:1, from about 1.5:1 to about 8:1, from about 1.5:1 to approximately 7:1, from approximately 1.5:1 to approximately 6:1, from approximately 1.5:1 to approximately 5:1, from approximately 1.5:1 to approximately 4:1, from approximately 1.5:1 to approximately 3.5:1, from approximately 1.5:1 to approximately 3:1, from approximately 1.5:1 to approximately 2.5:1, from approximately 1.5:1 to approximately 2:1, from approximately 2:1 to approximately 9:1, from approximately 2:1 to approximately 8:1, from approximately 2:1 to approximately 7:1, from approximately 2:1 to approximately 6:1, from approximately 2:1 to approximately 5:1, from approximately 2:1 to approximately 4:1,from approximately 2:1 to approximately 3.5:1, from approximately 2:1 to approximately 3:1, from approximately 2:1 to approximately 2.5:1, from approximately 2.5:1 to approximately 9:1, from approximately 2.5:1 to approximately 8:1, from approximately 2.5:1 to approximately 7:1, from approximately 2.5:1 to approximately 6:1, from approximately 2.5:1 to approximately 5:1, from approximately 2.5:1 to approximately 4:1, from approximately 2.5:1 to approximately 3.5:1, from approximately 2.5:1 to approximately 3:1, from approximately 3:1 to approximately 9:1, from approximately 3:1 to approximately 8:1, from approximately 3:1 to approximately 7:1, from approximately 3:1 to approximately 6:1, from approximately 3:1 to approximately 5:1, from approximately 3:1 to approximately 4:1, or from approximately 3:1 to approximately 3.5:1, or from approximately 1.5:1, approximately 1.6:1, approximately 1.7:1, approximately 1.8:1, approximately 1.9:1, approximately 2:1, approximately 2.1:1, approximately 2.2:1, approximately 2.3:1, approximately 2.4:1, approximately 2.5:1, approximately 2.6:1, approximately 2.7:1, approximately 2.8:1, approximately 2.9:1, approximately 3:1, approximately 3.1:1, approximately 3.2:1, approximately 3.3:1, approximately 3.4:1, approximately 3.5:1, approximately 3.6:1, approximately 3.7:1, approximately 3.8:1, approximately 3.9:1, approximately 4:1, approximately 4,1:1, approximately 4.2:1, approximately 4.3:1, approximately 4.4:1, or approximately 4.5:1, including all ranges and subranges using any of the above values ​​as upper and lower bounds. Non-ionic surfactants

[0147] In various embodiments, the compositions optionally further include at least one nonionic surfactant. However, in some embodiments, the compositions are free or substantially free of nonionic surfactants. Salts of nonionic surfactants are expressly included, whether or not they are mentioned. If present, useful nonionic surfactants may include, for example, alkyl polyglucosides, glycol ethers, amine oxides, or mixtures thereof.

[0148] In some embodiments, the nonionic surfactant may be selected from fatty acid amides, alkyl and polyalkyl esters of poly(ethylene oxide), alkyl and polyalkyl ethers of poly(ethylene oxide), optionally polyoxyethylened alkyl and polyalkyl esters of sorbitan, optionally polyoxyethylened alkyl and polyalkyl ethers of sorbitan, alkyl and polyalkyl esters of sucrose, optionally polyoxyethylened alkyl and polyalkyl esters of glycerol, and optionally polyoxyethylened alkyl and polyalkyl ethers of glycerol, and mixtures thereof.

[0149] The useful fatty acid amides may be selected from compounds derived from saturated or unsaturated C8-C30 linear or branched alkanolamine amides and fatty acid amides, the alkanolamines and / or fatty acids optionally being oxyalkylated, more particularly oxyethylated, with 1 to 50 mol of ethylene oxide. Optionally, useful fatty acid amides may be selected from C2-C10 alkanolamines and C14-C30 fatty acid amides, for example, C2-C10 alkanolamines and C14-C22 fatty acid amides.

[0150] In some embodiments, the fatty acid amide is coconut fatty acid monoisopropanolamide, such as cocamide MIPA, oleic acid diethanolamide, myristic acid monoethanolamide, soybean fatty acid diethanolamide, stearic acid ethanolamide, oleic acid monoisopropanolamide, linoleic acid diethanolamide. It may be selected from stearic acid monoethanolamide, behenic acid monoethanolamide, isostearic acid monoisopropanolamide, erucic acid diethanolamide, ricinoleic acid monoethanolamide, and rapeseed fatty acid amides containing 4 mol of ethylene oxide. Most preferably, the fatty acid amides include cocamide MIPA.

[0151] Examples of alkyl and polyalkyl esters of poly(ethylene oxide) include those containing at least one alkyl radical in the C8-C30 position, with an ethylene oxide (EO) number ranging from 2 to 200. Examples include PEG-20 stearate, PEG-40 stearate, PEG-100 stearate, PEG-20 laurate, PEG-8 laurate, PEG-40 laurate, PEG-55 propylene glycol oleate, PEG-150 distearate, and PEG-150 pentaerythrityl tetrastearate, PEG-7 cocoate, PEG-9 cocoate, PEG-8 oleate, PEG-10 oleate and PEG-40 hydrogenated castor oil.

[0152] Useful alkyl and polyalkyl poly(ethylene oxide) ethers include those containing at least one C8-C30 alkyl radical, with an ethylene oxide (EO) number ranging from 3 to 200. Examples include laureth-3, laureth-4, laureth-5, laureth-7, laureth-23, ceteth-5, ceteth-7, ceteth-15, ceteth-23, oleth-5, oleth-7, oleth-10, oleth-12, oleth-20, oleth-50, phytosterol 30 EO, steareth-6, steareth-20, steareth-21, steareth-40, steareth-100, beheneth-100, ceteareth-7, ceteareth-10, ceteareth-15, ceteareth-25, pareth-3, pareth-23, C12-15 pareth-3, C12-13 pareth-4, C12-13 pareth-23, trideceth-3, trideceth-4, trideceth-5, trideceth-6, trideceth-7 and trideceth-10, and their mixtures.

[0153] Non-limiting examples of alkyl and polyalkyl polyoxyethylened sorbitan esters include those with an ethylene oxide (EO) number of motifs from 0 to 100. Examples include sorbitan laurate, sorbitan laurate 4 EO, sorbitan laurate 20 EO (polysorbate 20), sorbitan palmitate 20 EO (polysorbate 40), sorbitan stearate 20 EO (polysorbate 60), sorbitan oleate 20 EO (polysorbate 80) and sorbitan trioleate 20 EO (polysorbate 85).

[0154] Exemplary alkyl and polyalkyl polyoxyethylenated sorbitan ethers include those having an ethylene oxide (EO) motif number from 0 to 100.

[0155] Non-limiting examples of alkyl and polyalkyl sucrose esters that may be cited are Crodesta™ F150, sucrose monolaurate sold under the name Crodesta SL 40, and products sold by Ryoto Sugar Ester, for example sucrose palmitate sold under the reference Ryoto™ Sugar Ester P1670, Ryoto™ Sugar Ester LWA 1695 or Ryoto Sugar™ Ester 01570. Sucrose monooleate, monomyristate and monostearate are also suitable.

[0156] Non-limiting examples of alkyl and polyalkyl (poly)oxyethylenated glycerol esters include those with an ethylene oxide (EO) number of motifs from 0 to 100 and a glycerol number of motifs from 1 to 30. Examples include hexaglyceryl monolaurate, PEG-55 propylene glycol oleate, PEG-30 glyceryl stearate, polyglyceryl-2 laurate, polyglyceryl-10 laurate, polyglyceryl-10 stearate, polyglyceryl-10 oleate, PEG-7 glyceryl cocoate and PEG-20 glyceryl isostearate.

[0157] Useful examples of alkyl and polyalkyl (poly)oxyethylened glycerol ethers include those with a number of ethylene oxide (EO) motifs ranging from 0 to 100 and a number of glycerol motifs ranging from 1 to 30. Examples that may be cited include Nikkol Batyl Alcohol 100 and Nikkol Chimyl Alcohol 100.

[0158] When present, the total amount of nonionic surfactants may vary. For example, in various embodiments, the compositions as disclosed may comprise a total amount of nonionic surfactants ranging from about 0.01% to about 5%, from about 0.05% to about 4%, from about 0.1% to about 3% by weight, from about 0.25% to about 2%, or from about 0.5% to about 1% by weight, relative to the total weight of the composition. In at least some embodiments, the compositions comprise less than about 2%, less than about 1.75%, less than about 1.5%, less than about 1.25%, less than about 1%, or less than about 0.75% of nonionic surfactants. Cationic surfactants

[0159] In various embodiments, the compositions optionally further include at least one cationic surfactant. However, in some embodiments, the compositions are free or substantially free of cationic surfactants. Salts of cationic surfactants are expressly included, whether or not they are mentioned. Non-limiting examples of cationic surfactants include amine-based or quaternary ammonium-based cationic compounds.

[0160] For example, cationic surfactants may be selected from alkylpyridinium salts, imidazoline ammonium salts, diquaterary ammonium salts, and ammonium salts containing at least one ester function. As a further example, cationic surfactants may be selected from quaternary ammonium salts having the following formula (XVII): Cl) RI R3 ' R2 R4

[0161] (XVII)

[0162] wherein RI to R4, which may be identical or different, represent a linear or branched aliphatic radical containing from 1 to 30 carbon atoms, or an aromatic radical such as aryl or alkylaryl; the aliphatic radicals may optionally include heteroatoms (O, N, S or halogens) and may optionally be substituted, and X is an anion selected from the group of halide, phosphate, acetate, lactate, C2-C6 alkyl sulfate and alkyl or alkylarylsulfonates. Aliphatic radicals are chosen, for example, from C12-C22 alkyl, alkoxy, C2-C6 polyoxyalkylene, alkylamide, (C12-C22)alkylamido(C2-C6)alkyl, (C12-C22)alkyl-acetate and hydroxyalkyl radicals, containing from 1 to 30 carbon atoms.

[0163] By way of further example, quaternary ammonium salts containing at least one ester function, such as those of formula (XVIII), may be chosen: (IV) (CrH2rO)zR18 I R17eO(OCnH2n)y--î+ — (CpH^O^cR^ R15

[0164] (XVIII)

[0165] in which:

[0166] - R15 is selected from among the C1-C6 alkyl radicals and the hydroxyalkyl radicals and C1-C6 dihydroxyalkyl;

[0167] - R16 is chosen from the radical R19-C(=O)-, the radicals R20 based of C1-C22 hydrocarbons, linear or branched, saturated or unsaturated, one hydrogen atom;

[0168] - R18 is chosen from the R21-C(=O) group, the R22 radicals based of C1-C22 hydrocarbons, linear or branched, saturated or unsaturated, one hydrogen atom;

[0169] -R17, R19 and R21, which may be identical or different, are chosen from the linear or branched, saturated or unsaturated C7-C21 hydrocarbon-based radicals;

[0170] - r, n and p, which may be identical or different, are integers ranging from 2 to 6;

[0171] - y is an integer from 1 to 10;

[0172] - x and z, which may be identical or different, are integers ranging from 0 to 10; and

[0173] - X is a simple or complex anion, organic or mineral;

[0174] subject to the following:

[0175] the sum x+y+z, i.e., from 1 to 15,

[0176] when x equals 0, R16 denotes R20, and

[0177] when z equals 0, R18 denotes R22.

[0178] In formula (XVIII), the alkyl radicals R15 may be linear or branched, and more particularly linear. Preferably, R15 designates a methyl, ethyl, hydroxyethyl, or dihydroxypropyl radical, and more particularly a methyl or ethyl radical. Advantageously, the sum x+y+z is from 1 to 10. When R16 is a hydrocarbon-based radical R20, it may contain from 12 to 22 carbon atoms, or from 1 to 3 carbon atoms. When RI8 is a hydrocarbon-based radical R22, it preferably contains 1 to 3 carbon atoms. Advantageously, R17, R19, and R21, which may be identical or different, are chosen from linear or branched, saturated or unsaturated C11-C21 hydrocarbon-based radicals, and more particularly from linear or branched, saturated or unsaturated Cl1-C21 alkyl and alkenyl radicals. Preferably, x and z, which may be identical or different, are equal to 0 or 1. Advantageously, y is equal to 1. Preferably, r, n, and p, which may be identical or different, are equal to 2 or 3, and even more particularly equal to 2. Anion X is preferably a halide (chloride, bromide, or iodide) or a C1-C4 alkyl sulfate, more particularly a methyl sulfate. Anion X may also represent methanesulfonate, phosphate, nitrate, tosylate, an anion derived from an organic acid (such as acetate or lactate), or any other anion that is compatible with ammonium containing an ester functional group.

[0179] Surfactants may be, for example, the salts (chloride or methyl sulfate) of diacyloxyethyldimethylammonium, diacyloxyethylhydroxyethylmethylammonium, monoacyloxyethylhydroxyethyldimethylammonium, triacyloxyethylmethylammonium, or 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.

[0180] Other suitable cationic surfactants are esterquats, which are quaternary ammonium compounds having fatty acid chains containing ester bonds, such as, for example, dibehenoylethyldimonium chloride, dipalmitoylethyldimonium chloride, distearoylethyldimonium chloride, disuifoyl PG-dimonium chloride, dipalmitoylethylhydroxyethylmonium methosulfate, distearoylethylhydroxyethylmonium methosulfate, or mixtures thereof.

[0181] If present, the compositions comprise cationic surfactants in an amount ranging from about 0.001% to about 5%, preferably from about 0.01% to about 2.5%, from about 0.025% to about 2% by weight, from about 0.05% to about 1% by weight, or from about 0.05% to about 0.5% by weight, relative to the total weight of the composition. In at least some embodiments, the compositions comprise less than about 0.5%, less than about 0.25%, less than about 0.1%, less than about 0.09%, less than about 0.08%, or less than about 0.07% of cationic surfactants. Anti-dandruff active agent(s)

[0182] The compositions comprise at least one anti-dandruff active agent. Non-limiting examples of anti-dandruff active agents include ellagic acid, ellagic acid ethers, ellagic acid salts, ellagic acid ether salts, pyrithione salts, l-hydroxy-2-pyridone derivatives, selenium (poly)sulfides, salicylic acid, pyroctone olamine, tea tree oil, climbazole, fluocinolone, ketoconazole, coal tar, or combinations of two or more of these.

[0183] By way of example, useful ellagic acid ethers may be selected from mono-, di-, tri-, or polyethers obtained by etherification of one or more -OH groups of ellagic acid to give one or more -OR groups, where R is selected from C2-C20 alkyl groups, polyoxyalkylene groups such as polyoxyethylene and / or polyoxypropylene groups, and groups derived from one or more mono- or polysaccharides. In the case of di-, tri-, or polyethers of ellagic acid, the R groups as defined above may be the same or different. For example, ellagic acid ethers such as 3,4-di-O-methyl ellagic acid, 3,3',4-tri-O-methyl ellagic acid, or 3,3'-di-O-methyl ellagic acid may be selected.

[0184] Useful and non-limiting salts of ellagic acid and / or its ethers may be selected from alkali metal or alkaline earth metal salts, such as sodium, potassium, calcium or magnesium salts, ammonium salt, and amine salts, such as triethanolamine, monoethanolamine, arginine and lysine salts.

[0185] In various embodiments, the pyrithione salts are selected from monovalent or divalent metal salts, such as sodium, calcium, magnesium, barium, strontium, zinc, cadmium, tin, or zirconium salts. In some embodiments, the zinc salt (zinc pyrithione) is particularly useful.

[0186] As non-limiting examples of l-hydroxy-2-pyridone derivatives, compounds of formula (Z) or their salts may be chosen: OR

[0187] (Z)

[0188] in which:

[0189] - RI is chosen from a hydrogen atom; a linear or branched alkyl group having from 1 to 17 carbon atoms; a cycloalkyl group having from 5 to 8 carbon atoms; a cycloalkyl-alkyl group, the cycloalkyl group having from 5 to 8 carbon atoms and the alkyl group having from 1 to 4 carbon atoms; an aryl or aralkyl group, the aryl group having from 6 to 30 carbon atoms and the alkyl group having from 1 to 4 carbon atoms; an aryl-alkenyl group, the aryl group having from 6 to 30 carbon atoms and the alkenyl group having from 2 to 4 carbon atoms; noting that the cycloalkyl and aryl groups as defined above can be substituted by a or several alkyl groups having from 1 to 4 carbon atoms or otherwise one or more alkoxy groups having from 1 to 4 carbon atoms;

[0190] - R2 is chosen from a hydrogen atom; an alkyl group having from 1 to 4 carbon atoms; an alkenyl group having 2 to 4 carbon atoms; a halogen atom or a benzyl group;

[0191] - R3 is chosen from a hydrogen atom; an alkyl group having from 1 to 4 atoms of carbon or a phenyl group; and

[0192] - R4 is chosen from a hydrogen atom; an alkyl group having from 1 to 4 carbon atoms; an alkenyl group having 2 to 4 carbon atoms; a methoxymethyl group; a halogen atom or a benzyl group.

[0193] For example, one can choose l-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2(lH)-pyridone or 6-cyclohexyl-l-hydroxy-4-methyl-2(lH)-pyridone.

[0194] Useful salts include C1-C4 alkanolamine salts, such as monoethanolamine or diethanolamine, amine or alkylamine salts, and also salts with inorganic cations, such as ammonium salts and alkali metal or alkaline earth metal salts. For example, in some embodiments, the monoethanolamine salt of l-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2(lH)-pyridinone (or piroctone), commonly called piroctone olamine, may be chosen.

[0195] Non-limiting examples of (poly)sulfides of selenium include selenium disulfide and selenium polysulfides corresponding to the formula SexSy, in which x and y are numbers such that x + y = 8.

[0196] The total amount of anti-dandruff active agents may vary, but typically ranges from about 0.01% to about 10%, including all intermediate sub-ranges, such as from about 0.01% to about 5%, from about 0.01% to about 4%, from about 0.01% to about 3%, from about 0.01% to about 2%, from about 0.01% to about 1.5%, from about 0.01% to about 1.25%, from about 0.01% to about 1%, from about 0.01% to about 0.75%, from about 0.1% to about 5%, from about 0.1% to about 4%, from about 0.1% to about 3%, from about 0.1% to about 2%, from about 0.1% to about 1.5%, from about 0.1% to approximately 1.25%, from approximately 0.1% to approximately 1%, from approximately 0.1% to approximately 0.75%, 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%, from approximately 0.5% to approximately 1.5%, from approximately 0.5% to approximately 1.25%, from approximately 0.5% to approximately 1%, or from approximately 0.5% to approximately 0.75% by weight,relative to the total weight of the composition, including all intermediate ranges and sub-ranges. Revitalization Agents

[0197] It may be advantageous to include one or more hair conditioning agents in compositions according to the disclosure. If present, the conditioning agents may be selected from, for example, cationic conditioning agents, silicone compounds, non-silicone fatty compounds, or combinations thereof.

[0198] Cationic revitalizing agents include at least one cationic group and / or at least one group that can be ionized into a cationic group. For example, cationic revitalizing agents that can be used may be cationic polymers having at least one amine group selected from primary, secondary, tertiary, and quaternary amine groups, and these groups may either be part of the main chain of the polymer or be carried by a side substituent that is directly attached to the main chain of the polymer. In various embodiments, cationic revitalizing agents may be selected from amidoamines, quaternary monoalkylamines, quaternary dialkylamines, polyquaternium compounds, or their salts.

[0199] Examples of amidoamines include, but are not limited to, oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, stearamidoethyl dimethylamine, lauramidopropyl dimethylamine, myristamidopropyl dimethylamine, behenamidopropyl dimethylamine, dilinoleamidopropyl dimethylamine, palmitamidopropyl dimethylamine, ricinoleamidopropyl dimethylamine, sojaamidopropyl dimethylamine, germamidopropyl dimethylamine (wheat), tournesolamidopropyl dimethylamine, amandamidopropyl dimethylamine, avocatamidopropyl dimethylamine, babassuamidopropyl dimethylamine, cocomidopropyl dimethylamine, visonamidopropyl dimethylamine, avoineamidopropyl dimethylamine, sesameamidopropyl dimethylamine, tallamidopropyl dimethylamine, brassicamidopropyl dimethylamine, olivamidopropyl dimethylamine, palmitamidopropyl dimethylamine, stearidoethyldiethylamine, and mixtures thereof.

[0200] Non-limiting examples of polyquaternium compounds include polyquaternium 5, polyquaternium 6, polyquaternium 7, polyquaternium 10, polyquaternium 11, polyquaternium 15, polyquaternium 16, polyquaternium 22, polyquaternium 28, polyquaternium 39, polyquaternium 44, polyquaternium 46, polyquaternium 47, and mixtures thereof.

[0201] Useful, but not limited to, silicone-based conditioning agents that may be included in compositions according to the disclosure include, but are not limited to, polyorganosiloxanes, polyalkylsiloxanes, polyarylsiloxanes, polyalkarylsiloxanes, polyestersiloxanes, and mixtures thereof. For example, dimethicone, cyclomethicone (cyclopentasiloxane), amodimethicone, trimethyl silyl amodimethicone, phenyl trimethicone, trimethyl siloxy silicate, polymethylsilsesquioxane, or mixtures thereof may be chosen.

[0202] In some embodiments, however, the compositions according to the disclosure are free or substantially free of silicones. For example, the compositions in some embodiments may include less than about 3%, less than about 2%, less than about 1%, less than about 0.5%, less than about 0.25%, less than about 0.1%, less than about 0.05%, or less than about 0.01% silicones.

[0203] Useful, but not limiting, examples of non-silicone fatty compounds include, for example, lower alkanes, fatty alcohols, fatty acid esters, fatty alcohol esters, or combinations thereof. By way of example, non-silicone fatty compounds may be selected from natural oils, such as coconut oil; hydrocarbons, such as mineral oil and hydrogenated polyisobutene; fatty alcohols, such as octyldodecanol; esters, such as a C12-C15 alkyl benzoate; diesters, such as propylene dipelargonate; and triesters, such as glyceryl trioctanoate.Examples of useful low-viscosity oils include isotridecyl isononanoate, PEG-4 diheptanoate, isostearyl neopentanoate, tridecyl neopentanoate, cetyl octanoate, cetyl palmitate, cetyl ricinoleate, cetyl stearate, cetyl myristate, coco-dicaprylate / caprate, decyl isostearate, isodecyl oleate, isodecyl neopentanoate, isohexyl neopentanoate, octyl palmitate, dioctyl malate, tridecyl octanoate, myristyle myristate, octododecanol, or combinations of octyldodecanol, acetylated lanolin alcohol, acetate of cetyl, isododecanol, polyglyceryl-3 diisostearate, or mixtures thereof.Examples of useful high-viscosity oils include castor oil, lanolin and lanolin derivatives, triisocetyl citrate, sorbitan sesquioleate, C10-C18 triglycerides, caprylic / capric triglycerides, coconut oil, corn oil, cottonseed oil, glyceryl triacetylhydroxystearate, glyceryl triacetyl ricinoleate, glyceryl trioctanoate, hydrogenated castor oil, linseed oil, mink oil, olive oil, palm oil, illipe butter, rapeseed oil, soybean oil, sunflower seed oil, tallow, tricaprine, trihydroxystearine, triisostearine, trilaurin, trilinolein, trimyristin, triolein, tripalmitin, tristearin, walnut oil, wheat germ oil, cholesterol, stearyl alcohol, cetyl alcohol, cetearyl alcohol, ceramides, or combinations of two or more of these.

[0204] When present, the total amount of revitalizing agents may vary, but will typically be present in a total amount ranging from about 0.001% to about 5%, from about 0.005% to about 4%, from about 0.01% to about 3%, from about 0.025% to about 2%, or about 0.05% to about 1% by weight, relative to the total weight of the composition. Thickening agents / rheology modifiers

[0205] The compositions may optionally further comprise at least one thickening agent (also called rheology or viscosity modifying agents). By way of non-limiting example, polysaccharide-based thickeners, which are polymers having monosaccharides or disaccharides as basic units, may be chosen. Polysaccharide thickeners that may be used in the compositions according to the present invention include, by way of example only, gums, celluloses, starches, or mixtures thereof.

[0206] Non-limiting examples of gums include acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, gelatin, gellan gum, guar gum, hyaluronic acid, hydrated silica, hydroxypropyl chitosan, hydroxypropyl guar, karaya gum, kelp, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium gum, sodium carboxymethyl dextran, sodium carrageenan, tragacanth gum, xanthan gum and biosaccharide gum. Modified gums or gum derivatives may also be used, such as, for example, deacylated gellan gum, welan gum or hydroxypropyl guar gum, such as Jaguar HP 105 sold by Rhodia.

[0207] Non-limiting examples of celluloses include hydroxyalkylcelluloses, such as hydroxyethylcellulose, hydroxypropylmethylcellulose, or hydropropylcelluloses, which may or may not contain a fatty chain. A particularly suitable hydroxypropylmethylcellulose is Methocel F4M sold by Dow Chemicals (INCI name: hydroxypropylmethylcellulose).Modified celluloses with groups comprising one or more nonionic fatty chains that can be used include hydroxyethylcelluloses, for example nonionic hydroxyethylcelluloses, modified by groups comprising at least one fatty chain, such as alkyl, arylalkyl or alkylaryl groups, or mixtures thereof, and in which the alkyl groups are preferably C8-C22 alkyl groups, such as the product NATROSOL™ Plus Grade 330 CS (alkyl Cl6), sold by Aqualon, corresponding to the INCI name cetylhydroxyethylcellulose, or the product BERMOCOLL® EHM 100 sold by Berol Nobel, and those modified with alkylphenyl polyalkylene glycol ether groups, such as the product AMERCELL. POLYMER® HM-1500 (nonylphenyl polyethylene glycol (15) ether) sold by Amerchol which corresponds to the INCI name nonoxynyl hydroxyethylcellulose.

[0208] Non-limiting examples of starches include modified and unmodified starches and starch-based polymers, methylhydroxypropyl starch, potato starch, wheat starch, rice starch, starch crosslinked with octenyl succinic anhydride, starch oxide, dialdehyde starch, dextrin, achroodextrin, acetyl starch, starch phosphate, carboxymethyl starch, hydroxyethyl starch, and hydroxypropyl starch. Useful modified starches include hydrolyzed maize starch or modified potato starch.

[0209] If present, the total amount of thickening agents may vary, but typically ranges from about 0.01% to about 5%, including all intermediate sub-ranges, such as from about 0.01% to about 4%, from about 0.01% to about 3%, from about 0.01% to about 2%, from about 0.01% to about 1.5%, from about 0.01% to about 1%, from about 0.01% to about 0.5%, from about 0.1% to about 5%, from about 0.1% to about 4%, from about 0.1% to about 3%, from about 0.1% to about 2%, from about 0.1% to about 1.5%, from about 0.1% to about 1%, or from about 0.1% to about 0.5%, relative to the total weight of the composition. In at least some embodiments, the composition includes a thickener in an amount of less than about 1%, less than about 0.75%, less than about 0.5%, less than about 0.25%, or less than about 0.1% by weight, relative to the total weight of the composition. Solvent(s)

[0210] The compositions according to the disclosure comprise at least one solvent. The solvent may be selected from water, non-aqueous solvents, or mixtures thereof.

[0211] In some embodiments, the solvent comprises, consists essentially of, or consists of water. The total amount of water in the compositions may vary depending on the type of composition and the desired consistency, viscosity, etc. In various embodiments, water is present in the compositions in an amount ranging from approximately 60% to approximately 95%, from approximately 65% ​​to approximately 90%, from approximately 70% to approximately 85% by weight, or from approximately 75% to approximately 85% by weight, relative to the total weight of the composition.

[0212] In some embodiments, the composition comprises one or more non-aqueous solvents, for example, glycerin, C1,4 alcohols, organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols, glycols, vegetable oils, mineral oils, liposomes, laminar lipid materials, or a mixture thereof. Other non-limiting examples of water-soluble organic 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-isopropyl dipropylene glycol ether;2-pyrrolidone, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbitol, sorbitan, acetin, diacetinate, triacetin, sulfolane, and mixtures thereof.

[0213] The total amount of solvent can range from approximately 60% to approximately 98% by weight, relative to the total weight of the composition, including all intermediate ranges and sub-ranges. For example, in one embodiment, the total amount of solvent can be from approximately 70% to approximately 95%, from approximately 70% to approximately 90%, from approximately 75% to 85% by weight, or from approximately 75% to 80% by weight, relative to the total weight of the composition. Auxiliary components

[0214] The compositions according to the disclosure may optionally include any auxiliary component suitable for use in such compositions. Such components may include, but are not limited to, a suspending agent such as carbomer and / or acrylates for suspending an anti-dandruff agent, dyes / pigments, humectants and moisturizing agents, fatty substances, thickeners other than polysaccharide thickeners, fillers, structuring agents, gloss enhancers, antioxidants or reducing agents, penetrants, sequestrants, perfumes, buffers, dispersants, plant extracts, preservatives, opacifiers, sunscreens, vitamins, pH adjusters, and antistatic agents.

[0215] Optional auxiliary components may be present in the composition in a total quantity of up to about 15%, or up to about 10%, up to approximately 5%, up to approximately 3%, up to approximately 2%, or up to approximately 1% by weight, relative to the total weight of the composition. For example, compositions as disclosed may include a total amount of auxiliary components ranging from approximately 0.001% to approximately 5%, from approximately 0.005% to approximately 4%, from approximately 0.01% to approximately 3%, from approximately 0.05% to approximately 2.5%, or from approximately 0.1% to approximately 2% by weight, relative to the total weight of the composition.

[0216] The compositions may have a pH less than or equal to 9, such as from about 3 to about 8, from about 4 to about 7, or from about 5 to about 6.5.

[0217] In various embodiments, the compositions according to this disclosure are stable, meaning that no phase separation or significant change in pH or viscosity is observed when stored at a temperature ranging from about 4°C to about 45°C, such as from about 10°C to about 37°C, or from about 20°C to about 30°C, for at least about 8 weeks.

[0218] In at least some embodiments, the compositions according to the disclosure may be gentle, exhibit good foaming properties, good detangling and combing properties, good antistatic properties, and / or good stability. The compositions may impart one or more properties such as smooth texture, conditioning, excellent detangling, anti-frizz, ease of styling and / or combing, antistatic properties, a clean and / or smooth appearance, and a non-heavy feel. PROCESSES

[0219] The disclosure also relates to methods for cleansing and / or revitalizing keratinous materials, in particular hair, skin, and / or scalp, with the compositions disclosed herein. The methods also relate to methods for treating dandruff, methods for reducing the appearance of dandruff, and methods for reducing dandruff symptoms such as itching and flaking. Without limitation, the methods according to the disclosure may include applying a sufficient, or an effective, amount of a composition disclosed herein to keratinous material, such as hair, skin, or scalp, which may be wet, damp, or dry; optionally leaving the composition on the keratinous material for a desired duration; and optionally rinsing the composition from the keratinous material.The composition can optionally be lathered before application to keratinous materials, for example in the hands, or it can be lathered onto keratinous materials.

[0220] In certain embodiments, the compositions according to the disclosure are particularly useful for cleansing hair, as well as for reducing the appearance and / or symptoms of dandruff. Moreover, the compositions offer a variety of desirable cosmetic and styling benefits to the hair, for example, smooth texture without heaviness, detangling, and anti-frizz. Thus, the compositions are useful in the Hair cleansing processes, as well as processes intended to give hair a smooth texture, detangle it, and / or control frizz. Accordingly, the disclosure encompasses hair cleansing processes and hair treatment processes with the compositions described in this disclosure.

[0221] Such processes typically include applying an effective amount of a composition of the present disclosure to the hair, leaving the composition on the hair for a period of time, and then rinsing the composition from the hair, followed by allowing the hair to air dry or drying the hair with a hairdryer that blows air through the hair and accelerates drying. Usually, the composition is simply left on the hair for a sufficient period of time to incorporate the cleansing composition throughout the hair, for example, by lathering the composition throughout the hair using the hands.

[0222] The amount of time is sufficient for the composition to interact with the hair and any dirt, oil, contamination, etc., that may be present on the hair so that, once rinsed, the dirt, oil, contamination, etc., can be effectively removed from the hair and the conditioning agents in the composition can interact with the hair to condition it. Thus, the composition can be left on the hair for a processing time of up to approximately 30 minutes, such as approximately 5 seconds to approximately 15 minutes, approximately 5 seconds to approximately 10 minutes, approximately 5 seconds to approximately 5 minutes, approximately 10 seconds to approximately 5 minutes, or approximately 10 seconds to approximately 3 minutes. Alternatively, the composition can be removed immediately once lathering is complete, for example, without any processing time. The composition is then rinsed from the hair, and the hair is allowed to dry.

[0223] As is often the case when using shampoo compositions, hair may be wetted or rinsed with water before applying a composition disclosed herein. The fact that hair already contains water can be helpful in creating lather when applying the compositions, as the water interacts with the surfactants.

[0224] 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 solely for the purposes of this disclosure.

[0225] As used herein, the terms “comprising”, “having” and “including” (or “comprehension”, “having” and “include”) are used in their open, non-limiting sense.

[0226] As used here, the singular includes the plural unless specifically indicated otherwise. The singular forms "un," "une," "le," "la," and "au moins un(e)" are understood to encompass both the plural and the singular, unless the context clearly indicates otherwise. The expressions "un(e) ou plusieurs" and "au moins un(e)" are interchangeable and expressly include individual components as well as mixtures / combinations. Similarly, the expression "un de ses(leurs) sels" also refers to "ses(leurs) sels."Thus, when the disclosure refers to "at least one item 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 of A, B, C, D and F may be included, one or more of a salt of A, a salt of B, a salt of C, a salt of D, a salt of E and a salt of F may be included, or a mixture of any two of A, B, C, D, E, F, one or more salts of A, one or more salts of B, one or more salts of C, one or more salts of D, one or more salts of E and one or more salts of F may be included.

[0227] 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.

[0228] As used herein, the expressions "and their mixtures", "and one of their mixtures", "and their combinations", "and one of their combinations", "or their mixtures", "or one of their mixtures", "or their combinations", and "or one of their combinations" are used interchangeably to indicate that the list of components immediately preceding the expression, such as "A, B, C, D, or their mixtures", means that the component(s) can / may be chosen from A, B, C, D, from A + B, from A + B + C, from A + D, from A + C + D, etc., without limitation on the variations thereof. Thus, the components may be used individually or in any of their combinations.

[0229] 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 it 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 the experimental and / or measurement conditions for that value.

[0230] All ranges and quantities stated herein are deemed to include subranges and quantities using any disclosed point as a boundary, and all boundaries 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 it is expressly stated, unless expressly stated otherwise. Similarly, a given range of "approximately 1% to 10%" is deemed to have its boundaries of both 1% and 10% modified by the term "approximately". The term "approximately" is used here to indicate a difference of up to + / - 10% from the stated number, such as + / - 9%, + / - 8%, + / - 7%, + / - 6%, + / - 5%, + / - 4%, + / - 3%, + / - 2%, or + / - 1%.Unless expressly stated otherwise, "approximately" means + / - 5%. Similarly, all range boundaries are understood to be disclosed individually, such that, for example, a range of 1:2 to 2:1 is understood to disclose a ratio of 1:2 and 2:1.

[0231] All quantities and ratios herein are given on a weight-for-weight basis, unless otherwise stated. Unless otherwise stated, all percentages stated herein are by weight of active ingredient.

[0232] As used herein, the term “salts” referred to 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.

[0233] As used herein, the terms "apply a composition to keratinous materials" and "apply a composition to hair" and variations thereof are intended to refer to bringing keratinous material or hair into contact with at least one of the compositions of the disclosure, in any manner whatsoever.

[0234] As used herein, the expressions "treat dandruff", "reduce the appearance of dandruff" or "reduce the symptoms of dandruff" refer to any reduction in the number or degree of dandruff symptoms, such as flaking and / or itching of the scalp.

[0235] “Cosmetically acceptable” means compatible with keratinous materials. For example, a "cosmetically acceptable vector" refers to a vector that is compatible with all keratinous tissue.

[0236] The "keratinous material" as used herein includes skin and hair, such as hair on the human head, or hair including eyelashes or body hair.

[0237] As used herein, the term “revitalization” means the process of imparting to keratinous materials at least one property selected from combability, moisture, luster, shine, and softness. The state of revitalization may be assessed by any means known in the art, such as, for example, measuring and comparing the combability of treated and untreated hair in terms of combing effort and consumer perception.

[0238] In this disclosure, a reference to a "shampoo" composition means a composition intended to cleanse keratinous fibers. Although shampoo compositions may also cleanse skin such as the scalp, those skilled in the art understand that the primary purpose of a shampoo composition is to cleanse keratinous fibers such as hair that grows from the scalp.

[0239] As used herein, the term "treat" keratinous materials (and its grammatical variations) refers to the application of the compositions of this disclosure to the surface of keratinous materials, such as hair and scalp.

[0240] As used herein, the term “salts” referred to throughout the disclosure may include salts having a counterion such as an alkali metal, an alkaline earth metal, or an ammonium counterion. This list of counterions, however, is not exhaustive.

[0241] Unless otherwise defined for any specific embodiment, the terms "substantially free" or "essentially free," which are used interchangeably herein, mean that there is less than about 2% 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 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 2%, less than approximately 1.5%, 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" or "essentially free" of such material. A composition that is "free" of a component is understood to be one that contains 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 a quantity of the component present in the composition as a minor component in a raw material. For example, . A composition "free" of waxes 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 bring benefits to the composition that would be expected by including a wax itself as an intended component.

[0242] As used herein, the expressions "sulfate-based surfactant" and "sulfate-containing surfactant" refer to surfactant compounds that include a sulfate group in their structure.

[0243] “Substituted”, as used here, means comprising at least one substitute. Non-limiting examples of substituents include atoms, such as oxygen and nitrogen atoms, as well as functional groups, such as hydroxyl groups, ether groups, alkoxy groups, acyloxyalkyl groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen-containing groups, ester groups, thiol groups, sulfonate groups, thiosulfate groups, siloxane groups, and polysiloxane groups. The substituent(s) may, in addition, be substituted.

[0244] Unless expressly stated otherwise, no process presented herein is intended to be interpreted as requiring that its steps be performed in a specific order. Accordingly, where a process does not expressly state that a specific order of steps must be followed or is not specifically stated that the steps must be limited to a specific order, no particular order is to be inferred from it.

[0245] It should also be understood that the precise numerical values ​​used in the specification and claims constitute additional embodiments of the disclosure and are intended to include any range that can be reduced to any two bounds disclosed in the ranges and values ​​given by way of example, as well as the specific bounds themselves.

[0246] Although the numerical ranges and parameters presenting the general scope of the disclosure are approximations, unless otherwise indicated, the numerical values ​​presented in the specific examples are reported as accurately as possible. However, every numerical value inherently contains some errors necessarily resulting from the standard deviation observed in their respective test measurements. The following examples serve to illustrate embodiments of the disclosure but are not intended to be exhaustive. Examples

[0247] The following examples are intended to be non-limiting and explanatory only. In the examples, quantities are expressed as a percentage by weight (% by weight) of active substances, relative to the total weight of the composition.

[0248] Example 1 - Sulfate-free anti-dandruff shampoo compositions

[0249] Shampoo compositions 1A-1D according to the disclosure were prepared as shown in Table 1 below. TABLE IA - Shampoo compositions

[0250] [Tables 1] IA IB IC 1D SHAMPOO CERAMIDES, CHOLESTEROL AND PHYTOSPHINGOSIN 0.0065 0.0065 0.0065 0.0065 XANTHAN GUM 0.0049 0.0049 0.0049 0.0049 CATIONIC SURFACTANT 0.02 0.02 0.08 0.02 CAPRYLIC / CAPRIC GLYCERIDES PEG-6 0.1 PEG-150 PENTAERYTHRITYL TETRASTEARATE 0.25 ZINC PYRITHIONE 1.02 1.02 1.02 1.02 SODIUM LAUROYL SARCOSINATE 4.34 SODIUM LAURYL SULFOACETATE 1.05 1.05 1.05 ACRYLATES COPOLYMER 0.42 0.42 0.42 0.42 DISODIUM LAURETH SULFOSUCCINATE 2.7 2.7 2.7 GLYCERIN 0.4 CETEARYL ALCOHOL 0.1875 COCAMIDOPROPYL HYDROXYSULTANINE 2.5 COCAMIDE MIPA 0.7 0.7 0.7 COCO-BETAINE 0.27 2.97 0.27 0.27 C14-16 SODIUM OLEFIN SULFONATE 4.56 4.26 4.56 4.56 AMODIMETHICONE 1.14 1.14 1.14 1.14 POLYQUATERNIUM-10 0.8 0.8 0.8 0.8 COCOAMPHODIACETATE DISODIUM 2.52 2.52 2.52 TRIETHYL CITRATE 0.0017 0.0017 0.0017 0.0017 TRIDECETH-6 0.1 0.1 0.1 0.1 CARBOMER 0.35 0.35 0.35 0.35 SODIUM HYALURONATE 0.01 0.01 0.01 0.01 PPG-5-CETETH-20 1.0 0.5 0.5 0.5 Glycol distearate 1.35 1.35 1.35 1.35 Additives* <3 <3 <3 <3 Solvents (water and non-aqueous solvents) Qs per 100 Qs per 100 Qs per 100 Qs per 100

[0251] * preservatives, vitamins, pH adjusters, stabilizers, consistency agents, electrolytes, antioxidants, emulsifiers

[0252] In order to evaluate the properties of shampoo compositions and hair treated with shampoo compositions according to the disclosure compared to other sulfate-free anti-dandruff shampoo compositions, cleansing and conditioning routines using the IC shampoo composition of Table IA and the CND conditioner composition of Table IB were tested against routines using commercially available anti-dandruff shampoo and conditioner compositions advertised as sulfate-free and containing ingredients as listed on the packaging indicated in Table IC.

[0253] TABLE IB - Conditioner Composition

[0254] [Tables2] CN D Conditioner Cetrimonium Chloride 0.02 Zinc Pyrithione 0.51 PEG-180 2.0 Behentrimonium Chloride 4.0 TRIDECETH-6 0.09 BEHENTRIMONIUM METHOSULFATE 0.06 SODIUM HYALURONATE 0.01 THICKENING AGENTS 0.20 REVITALIZING COMPOUNDS (amodimethicone, cetyl esters, ceramides, phytosphingosine, cholesterol, isopropyl alcohol, cetearyl alcohol) 8.1 ADDITIVES (preservatives, vitamins, pH adjusters, stabilizers, antioxidants, chelators, polymers) < 1 SOLVENT (water and non-aqueous solvents) Qs per 100

[0255] TABLE IC - Comparative Shampoo and Conditioner Products

[0256] [Tables3] Product Ingredients listed on the packaging Comparative Shampoo Cl-S Active ingredient: Zinc pyrithione 1% Inactive ingredients: water, lauramidopropyl betaine, sodium cocoyl isethionate, sodium lauroyl sarcosinate, sodium chloride, Argania Spinosa kernel oil, Zea Mays (corn) silk extract, Cocos Nucifera (coconut) fruit extract, sodium citrate, parfum, acrylates copolymer, polyquaternium-10, citric acid, sodium benzoate, sodium salicylate Comparative Conditioner Cl-C Active ingredient: Zinc pyrithione 0.5% Inactive ingredients: water, stearyl alcohol, behentrimonium chloride, cetyl alcohol, Argania Spinosa kernel oil, Zea Mays (corn) silk extract, Cocos Nucifera (coconut) fruit extract Nucifera (coconut), fragrance, phenoxyethanol, benzyl alcohol, methylchloroisothiazolinone, methylisothiazolinone

[0257] In a salon environment, hairdressers applied the IC shampoo composition to half of the consumers' hair, distributed the shampoo thoroughly by massaging it into the hair for 15 seconds, rinsed the hair for 15 seconds, combed the hair, and then applied the CND conditioner composition to the same half of the hair and left the conditioner composition on the hair for three minutes before rinsing the hair thoroughly. The same quantities of the comparative Cl-S shampoo composition and the Cl-C conditioner composition, available in the Products sold commercially and advertised as sulfate-free were applied to the opposite side of the hair following the same procedure. The hair was then combed again, blow-dried, combed, and styled.

[0258] Hairdressers evaluated hair properties during and after the routine. All hairdressers found that the properties imparted to hair treated with the IC and CND compositions were superior to those of hair treated with the comparative shampoo composition Cl-S and the conditioner composition Cl-C. The results are shown in [Fig. 1]. Example 1 thus demonstrates that the surfactant combination as disclosed is surprisingly more effective at imparting cleansing and cosmetic benefits to hair in the absence of sulfates than known sulfate-free shampoo compositions. Example 2# - Additional Studies

[0259] Shampoo compositions 2A-2C according to the disclosure presented in Table 2A have been prepared. TABLE 2A

[0260] [Tables4] Shampoo Composition 2A 2B 2C CERAMIDES, CHOLESTEROL AND P HYTOSPHINGOSINE 0.0065 0.0065 0.0065 XANTHAN GUM 0.0049 0.0049 0.0049 CATIONIC SURFACTANT 0.02 0.02 0.02 ZINC PYRITHIONE 1.02 1.02 1.02 SODIUM LAURYL SULFOACETATE 0.21 0.21 0.21 ACRYLATES COPOLYMER 0.42 0.42 0.42 DISODIUM LAURETH SULFOSUCCINATE 0.54 0.54 0.54 COCAMIDE MIPA 0.7 0.7 0.7 COCO-BETAINE 0.27 0.27 0.27 C14-16 S ODIUM OLEFIN SULFONATE 5.7 9.5 Sodium lauroyl sarcosinate 5.7 AMODIMETHICONE 1.14 1.14 1.14 POLYQUATERNIUM-10 0.8 0.8 0.8 COCOAMPHODIACETATE DISODIUM 0.63 0.63 0.63 TRIETHYL CITRATE 0.0017 0.0017 0.0017 TRIDECETH-6 0.1 0.1 0.1 CARBOMER 0.35 0.35 0.35 SODIUM HYALURONATE 0.01 0.01 0.01 PPG-5-CETETH-20 1.0 1.0 1.0 GLYCOL DISTEARATE 1.35 1.35 1.35 ADDITIVES* <3 <3 <3 SOLVENTS (water and non-aqueous solvents) Qs per 100 Qs per 100 Qs per 100

[0261] * preservatives, vitamins, pH adjusters, stabilizers, consistency agents, electrolytes, antioxidants, emulsifiers

[0262] Studies were conducted using the 2A-2C shampoo compositions from Table 2A and the Cl-S shampoo composition from Table IC. Equal amounts of the 2A, 2B, 2C, or Cl-S shampoo compositions were massaged into separate strands of type 4 hair for 15 seconds, the hair was rinsed for 15 seconds, and then blow-dried. During and after the process, various attributes of the shampoo, the lather formed, and the hair properties were evaluated on a scale of 1 (poor) to 5 (good). The results are shown in Table 2B and in [Fig. 2]. TABLE 2B

[0263] [Tables5] Property 2A 2B 2C cl-S PROPERTIES IN THE WET STATE Foam Formation Behavior (foam flash) 3 3 2 1 Ease of Foaming 4 4 3 1 Abundance of Foam 4 3 2 1 Foam Stability 4 3 3 1 Smooth Foam Texture 4 2 3 2 Ease of Rinsing 4 4 3 4 Detangling when wet 3 4 2 3 PROPERTIES WHEN DRY Blow-dryable 4 4 ​​5 1 Detangling 4 3 1 3 Softness 4 2.5 3 2 Smooth texture 4 2.5 3 2 Condition of ends 3 2 2 1 Frizz control 4 3 3 2

[0264] As shown in Table 2B and [Fig. 2], the disclosed shampoo compositions 2A-2C significantly outperformed the comparative sulfate-free anti-dandruff shampoo in almost all categories evaluated. This study therefore further confirms that the disclosed combination of surfactants addresses needs not met by currently available sulfate-free shampoo compositions. Example 3# - Additional Compositions

[0265] 3A-3D anti-dandruff shampoo compositions can also be prepared as indicated in Table 3, and are also expected to provide similar benefits in terms of lathering, cleansing, detangling, softness, frizz control and smooth texture.

[0266] TABLE 3

[0267] [Tableauxô] 3A 3B 3C 3D CERAMIDES 0.008 0.003 0.01 0.002 BEHENTRIMO NIUM CHLORIDE 0.05 hydroxypropyl cellulose 0.30 0.20 Polyquaterium-10 0.50 sodium cocoyl taurate 1.00 1.00 0.75 sodium dioctyl sulfosuccinate 2.00 2.50 1.50 1.00 COCOBETAINE 1.00 0.50 0.75 C14-16 SODIUM OLEFIN SULFONATE 7.50 3.50 1.00 Ammonium alpha-olefin sulfonate 5.00 1.00 Amodimethicone and / or dimethicone 1.0 1.5 0.50 0.10 Cetearyl alcohol 0.20 0.50 Disodium cocoamphodiacetate 1.50 Disodium capryloamphodipropionate 2.50 0.50 1.00 Trideceth-6 0.1 0.1 0.1 0.1 Zinc pyrithione 0.5 1.5 2.0 2.5 PPG-5-ceteth-20 0.5 0.5 0.5 0.5 Glycol distearate 1.35 1.35 1.35 1.35 Additives (preservatives, vitamins, pH adjusters, Stabilizers, antioxidants, etc.) <3 <3 <3 <3 SOLVENTS (water and non-aqueous solvents) Qs per 100 Qs per 100 Qs per 100 Qs per 100

[0268] The above examples demonstrate that anti-dandruff shampoo compositions comprising the combination of surfactants as disclosed are surprisingly effective at cleansing and providing desired cosmetic properties to the hair and scalp, as well as generating abundant, thick, and creamy lather in sulfate-free shampoo compositions.

Claims

Demands

1. Keratinous material cleansing composition comprising: (a) a surfactant system comprising: (i) a first anionic surfactant selected from sulfate-derived anionic surfactants, (ii) at least one second anionic surfactant different from the first anionic surfactant, (iii) optionally at least one amphoteric surfactant, and (iv) optionally at least one nonionic surfactant; (b) at least one anti-dandruff active agent; and (c) water, in which the composition is substantially free from sulfate-based surfactants.

2. Composition according to claim 1, comprising a first anionic surfactant selected from C4-C28 alkyl sulfonates, C6-C30 alkyl sulfosuccinates, C6-C30 alkyl sulfoacetates, or their salts, preferably from C10-C24 olefin sulfonates, or their salts, more preferably C14-C16 sodium olefin sulfonate.

3. A composition according to claim 1 or claim 2, comprising at least one second anionic surfactant selected from C4-C28 alkyl sulfonates, C6-C30 alkyl sulfosuccinates, isethionates, C6-C30 alkyl sulfoacetates, alkoxylated monoacids, acyl taurates, acyl glycinates, acyl glutamates, acyl sarcosinates, their salts, or combinations of two or more of these, preferably from C8-C30 alkyl sulfosuccinates, C8-C30 alkyl sulfoacetates, acyl sarcosinates, alkoxylated monoacids, their salts, or combinations of two or more of these, more preferably from disodium laureth sulfosuccinate, sodium lauryl sulfoacetate, lauroyl sodium sarcosinate, or combinations of two or more of these.

4. A composition according to any one of claims 1 to 3, wherein the total amount of anionic surfactants present in the composition ranges from about 1% to about 20%, preferably from about 1.5% to about 18%, more preferably from about 2% to about 15%, and more preferably from about 2.5% to about 12%, most preferably about 3% to about 10% by weight, relative to the total weight of the composition.

5. Composition according to any one of claims 1 to 4, comprising at least one amphoteric surfactant selected from betaines, C8-C18 alkyl sultaines, C8-C18 alkyl amphoathetas, amphopropionates, their salts, or combinations of two or more of these, wherein the total amount of amphoteric surfactants present in the composition ranges from about 0.5% to about 10%, preferably from about 1% to about 8%, more preferably from about 1.5% to about 6%, most preferably from about 2% to about 5.5% by weight, relative to the total weight of the composition.

6. Composition according to any one of claims 1 to 5, comprising at least one anti-dandruff active agent selected from ellagic acid, ellagic acid ethers, ellagic acid ether salts, ellagic acid ether salts, pyrithione salts, l-hydroxy-2-pyridone derivatives, selenium (poly)sulfides, salicylic acid, piroctone olamine, tea tree oil, climbazole, fluocinolone, ketoconazole, coal tar, or combinations of two or more of these, preferably selected from pyrithione salts, more preferably comprising zinc pyrithione.

7. Composition according to any one of claims 1 to 6, wherein the total amount of anti-dandruff active agents ranges from about 0.01% to about 10%, preferably from about 0.01% to about 5%, more preferably from about 0.1% to about 3%, more preferably still from about 0.5% to about 2%, most preferably from about 0.5% to about 1.25% by weight, relative to the total weight of the composition.

8. Composition according to any one of claims 1 to 7, comprising at least one nonionic surfactant, wherein the total amount of nonionic surfactants present in the composition ranges from about 0.01% to about 5%, preferably from about 0.05% to about 4%, more preferably from about 0.1% to about 3%, most preferably from about 0.25% to about 2% by weight, relative to the total weight of the composition.

9. A method for cleaning keratinous materials, the method comprising applying to the keratinous materials a

10. composition according to any one of claims 1 to 8, and rinsing of the composition of keratinous materials. A method according to claim 9, wherein the composition is an anti-dandruff shampoo composition and the keratinous materials are hair.

Images