Compositions and processes for lengthening curly hair

Abstract

Compositions and methods for lengthening curly hair. The disclosure relates to compositions comprising gluconolactone and at least one amino acid. The compositions may be used to visually lengthen hair, particularly curly hair. The disclosure also relates to methods for using the compositions. Figure for the abstract: none

Description

Title of the invention: Compositions and methods for lengthening curly hair Technical field

[0001] The present disclosure relates to compositions comprising gluconolactone and at least one compound selected from amino acids, amino sulfonic acids, their salts or mixtures thereof, and methods of using the compositions to enhance the lengthening of curly hair. CONTEXT

[0002] Curly hair generally appears shorter than its actual length. In the multicultural beauty market, there is a desire for products that can elongate hair curls and give more visual length to the hair. In addition, reducing the curls of very curly hair can increase the manageability and ease of styling of this hair.

[0003] One concern that consumers with curly hair have is that their curly hair appears shorter than its actual length and / or that the curls are not sufficiently defined. In the multicultural beauty market, there is a desire for products that lengthen and / or define curls in order to enhance the natural curl pattern. Existing products on the market that help prevent curl shrinkage often use thick dosage forms with various butters or oils that can leave the hair feeling greasy or oily. Products that provide hold, such as styling gels, can also have lengthening effects, but these products typically flake off the hair.Therefore, the use of these hair lengthening products generally requires frequent washing of the hair, which is particularly undesirable for consumers who have pronounced curls and prefer a limited number of washes per week and who wish to maintain hairstyles that last all day or several days. In addition, traditional hair lengthening, including relaxing or straightening the hair, often involves chemical processing or high heat that can damage the hair fibers and / or irritate the scalp.

[0004] Also, consumers desire new and improved styling compositions that can deliver visible and long-lasting curl extension to the hair and / or provide visible and long-lasting curl definition and hold, particularly in humid conditions, and at the same time impart various additional beneficial properties to the hair such as hydration, softness, smoothness, good bounce, good shine, and / or frizz control.

[0005] It has now been surprisingly discovered that cosmetic compositions comprising gluconolactone and at least one compound selected from amino acids, amino sulfonic acids, their salts or their mixtures, are capable of improving the elongation of hair curls and / or providing definition and hold of curls, particularly in humid conditions, as well as providing other benefits such as hydration, softness, frizz control, and / or manageability to the hair. SUMMARY

[0006] The present disclosure relates to compositions that have surprisingly been found to improve the elongation of hair curls. The compositions also provide curl definition and / or hold. The compositions are optionally leave-in hair styling compositions, and may, for example, be in the form of a serum, gel, gel-cream, cream, lotion, or the like. The disclosure also relates to methods for improving the elongation of curly hair with the compositions.

[0007] The compositions comprise (a) gluconolactone, (b) at least one compound selected from amino acids, amino sulfonic acids, their salts or mixtures thereof, and (c) at least one solvent. In various embodiments, the pH of the composition is less than about 7. The compositions may optionally further comprise additional components such as, for example, film-forming polymers, anionic surfactants, thickening agents, buffers or pH adjusters, or mixtures thereof.

[0008] In various embodiments, the compositions comprise (a) from about 0.05% to about 10%, preferably from about 0.1% to about 5%, more preferably from about 0.5% to about 3%, most preferably from about 1% to about 2% gluconolactone, (b) from about 0.05% to about 10%, preferably from about 0.1% to about 8%, more preferably from about 0.5% to about 6%, even more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3% of at least one compound selected from amino acids, amino sulfonic acids, salts thereof, or mixtures thereof, and (c) at least one solvent, wherein all amounts are by weight, based on the total weight of the composition.

[0009] In some embodiments, the weight ratio of the total amounts of (b) amino acids / amino sulfonic acids / salts:(a) gluconolactone in the compositions is between about 5:1 and about 1:1, preferably between about 4:1 and about 1:1, more preferably between about 3:1 and about 1:1, even more preferably between about 2.5:1 to about 1:1, most preferably from about 2:1 to about 1:1, such as about 2.5:1, about 2:1, about 1.5:1, or about 1:1.

[0010] In various embodiments, the pH of the composition is less than about 7, for example, it is between about 3 and about 6, preferably between about 3.5 and about 5, more preferably between about 4 and about 4.5, most preferably between about 4 and about 4.3. Optionally, the compositions comprise at least one buffer or pH adjuster.

[0011] In various embodiments, the compositions comprise at least one amino acid or amino sulfonic acid selected from alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine and valine, aminomethane sulfonic acid, aminoethane sulfonic acid (taurine), aminopropane sulfonic acid, aminobutane sulfonic acid, aminohexane sulfonic acid, aminoisopropyl sulfonic acid, aminododecyl sulfonic acid, amino benzene sulfonic acid, aminotoluene sulfonic acid, sulfanilic acid, chlorosulfanilic acid, diamino benzene sulfonic acid, amino phenol sulfonic acid, amino propyl benzene sulfonic acid, amino hexyl benzene sulfonic acid, their salts, or their mixtures, preferably chosen from glycine,taurine, phenylalanine, their salts, or mixtures thereof, more preferably glycine. In some embodiments, the compositions comprise, consist essentially of, or consist of glycine, taurine, phenylalanine, their salts, or mixtures thereof as the sole amino acids / amino sulfonic acids. In other embodiments, the at least one amino acid / amino sulfonic acid comprises, consists essentially of, or consists of, glycine.

[0012] In various embodiments, the compositions comprise at least one polysaccharide selected from anionic polysaccharides, cationic polysaccharides, non-ionic polysaccharides, or mixtures thereof. In some embodiments, the polysaccharides are selected from inulins, celluloses, starches, and gums such as guar gums, xanthan gums, pullulan gums, alginate gums, agar-agar gums, carrageenan gums, gellan gums, arabic gums, xyloses, tragacanth gums, their derivatives or mixtures thereof, preferably selected from hydroxypropylguar, carrageenan, xanthan gum, cellulose gum or mixtures thereof. In some embodiments, the polysaccharide is selected from xanthan gum, carrageenan, hydroxypropyl guar, or mixtures thereof. In some embodiments, the polysaccharide comprises xanthan, hydroxypropyl guar, or a mixture thereof. In one embodiment, the polysaccharide comprises, consists essentially of, or consists of xanthan gum.

[0013] The compositions may optionally comprise at least one film-forming polymer. In some embodiments, the film-forming polymer comprises, consists essentially of, or consists of one or more non-ionic film-forming polymers. The film-forming polymer may, for example, be chosen from polyalkyloxazolines, vinyl acetate homopolymers, vinyl acetate copolymers, homopolymers and copolymers of acrylic esters, copolymers of acrylonitrile and a non-ionic monomer, styrene homopolymers, styrene copolymers, copolymers of styrene and butadiene, or copolymers of styrene, butadiene and vinylpyridine, polyamides, vinyllactam homopolymers, vinyllactam copolymers, vinylpyrrolidone / methacrylamide / vinylimidazole terpolymers, or mixtures thereof.In one embodiment, the composition comprises, consists essentially of, or consists of a vinylpyrrolidone / methacrylamide / vinylimidazole copolymer as the film-forming polymer. In some embodiments, the compositions comprise a total amount of film-forming polymers, preferably non-ionic film-forming polymers, more preferably vinylpyrrolidone / methacrylamide / vinylimidazole copolymer, in an amount ranging from about 0.05% to about 2%, preferably from about 0.1% to about 1%, more preferably from about 0.2% to about 0.5% by weight, based on the total weight of the composition.

[0014] In various embodiments, the compositions comprise at least one additional component, for example at least one anionic surfactant, at least one thickening agent, at least one pH adjuster, or mixtures thereof.

[0015] In other embodiments, the compositions comprise (a) from about 0.05% to about 10%, preferably from about 0.1% to about 5%, more preferably from about 0.5% to about 3%, most preferably from about 1% to about 2% gluconolactone, (b) from about 0.05% to about 10%, preferably from about 0.1% to about 8%, more preferably from about 0.5% to about 6%, even more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3% of at least one amino acid or amino sulfonic acid, preferably selected from glycine, taurine, phenylalanine, their salts or mixtures thereof, more preferably glycine, a salt thereof or a mixture thereof, and (c) at least one solvent, wherein the weight ratio of amino acid(s) / amino sulfonic acid(s): gluconolactone is between about 5:1 and about 1:1,and all quantities are by weight, relative to the total weight of the composition.

[0016] In other embodiments, the compositions comprise (a) from about 0.05% to about 10%, preferably from about 0.1% to about 5%, more preferably from about 0.5% to about 3%, most preferably from about 1% to about 2% gluconolactone, (b) from about 0.05% to about 10%, preferably from about 0.1% to about 8%, more preferably from about 0.5% to about 6%, even more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3% of at least one amino acid, an amino sulfonic acid, their salts or mixtures thereof, preferably selected from glycine, taurine, phenylalanine, their salts or mixtures thereof, more preferably glycine, a salt thereof, or one of its mixtures, (c) at least one solvent, and (d) at least one additional component chosen from anionic surfactants, thickening agents, pH correctors,or mixtures thereof, wherein the pH of the composition is less than about 7, wherein the weight ratio of amino acid(s) / amino sulfonic acid(s):gluconolactone is from about 5:1 to about 1:1, and wherein all amounts are by weight, based on the total weight of the composition.

[0017] In other embodiments, the compositions comprise (a) from about 0.05% to about 10%, preferably from about 0.1% to about 5%, more preferably from about 0.5% to about 3%, most preferably from about 1% to about 2% gluconolactone, (b) from about 0.05% to about 10%, preferably from about 0.1% to about 8%, more preferably from about 0.5% to about 6%, even more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3% of at least one amino acid, an amino sulfonic acid, their salts, or mixtures thereof, preferably selected from glycine, taurine, phenylalanine, their salts, or mixtures thereof, preferably glycine, a salt thereof, or one of its mixtures, (c) at least one solvent, and (d) optionally at least one additional component chosen from anionic surfactants, thickening agents, pH correctors,or mixtures thereof, wherein the pH of the composition is from about 3 to about 6, preferably from about 3.5 to about 5, more preferably from about 4 to about 4.5, most preferably from about 4 to about 4.3; wherein the weight ratio of amino acid(s) / amino sulfonic acid(s):gluconolactone is from about 5:1 to about 1:1, preferably from about 4:1 to about 1:1, more preferably from about 3:1 to about 1:1, even more preferably from about 2.5:1 to about 1:1, most preferably from about 2:1 to about 1:1; and wherein all amounts are by weight, based on the total weight of the composition.

[0018] The disclosure also relates to methods of using the compositions to lengthen curls, lengthen the visual appearance of curly hair, reduce shrinkage of curly hair length, maintain curl length, and / or reduce frizz, even under conditions of high relative humidity, the methods comprising applying the composition to wet, damp, or dry hair. Optionally, the methods do not include a heating step. The methods generally provide one or more styling benefits to the hair, such as curl lengthening, curl definition, frizz control, smoothness, and / or softness. BRIEF DESCRIPTION OF THE FIGURES

[0019] The accompanying drawings, which are incorporated herein and form a part of this specification, illustrate exemplary embodiments of the disclosure and, together with the general description given above and the description provided herein, serve to explain the features of the disclosure.

[0020] [Fig.lA] [Fig.lA] is a graph comparing the elongation (length retention) of hair strands treated with compositions according to the disclosure and comparative compositions after exposure to high humidity.

[0021] [Fig.lB] [Fig.lB] shows images of strands of hair treated with compositions according to the disclosure and comparative compositions at different times.

[0022] [Fig.2] [Fig.2] is a graph comparing the elongation (conservation of length) of strands of hair treated with compositions according to the disclosure and a comparative composition at different times.

[0023] [Fig.3A] [Fig.3A] is a graph comparing the elongation (length retention) of hair strands treated with compositions according to the disclosure and comparative compositions after exposure to high humidity.

[0024] [Fig.3B] [Fig.3B] shows images of hair strands treated with compositions according to the disclosure and comparative compositions at different times.

[0025] [Fig.4A] [Fig.4A] is a graph comparing the elongation (length retention) of hair strands treated with a composition according to the disclosure and comparative compositions after exposure to high humidity.

[0026] [Fig.4B] [Fig.4B] shows images of hair strands treated with compositions according to the disclosure and a comparative composition at different times.

[0027] It is to be understood that the foregoing and following descriptions are exemplary and explanatory only, and are not intended to be restrictive of any subject re- sold any. DETAILED DESCRIPTION

[0028] The disclosure relates to compositions for lengthening curls, lengthening the visual appearance of curly hair, reducing shrinkage of curly hair length, maintaining curl length, and / or reducing frizz, even under conditions of high relative humidity, as well as methods of using the compositions. I. Compositions

[0029] In various embodiments, the compositions of the disclosure comprise (a) gluconolactone; (b) at least one compound selected from amino acids, amino sulfonic acids, their salts, or mixtures thereof; and (c) at least one solvent. The compositions of the disclosure may improve hair curl lengthening and / or hair curl lengthening persistence, and / or may provide additional benefits such as softness, smoothness, curl definition, curl hold, and / or frizz control to the hair. Gluconolactone

[0030] It has been surprisingly discovered that gluconolactone exhibits amazing hair styling benefits for elongating the visual appearance of curly hair. Thus, the compositions according to the disclosure comprise gluconolactone. The gluconolactone may be present in an amount ranging from about 0.05% to about 10% by weight, such as from about 0.05% to about 8% by weight, from about 0.05% to about 6% by weight, from about 0.05% to about 4% by weight, from about 0.05% to about 2.5%, from about 0.05% to about 2%, from about 0.05% to about 1.5%, from about 0.05% to about 1%, from about 0.1% to about 10%, from about 0.1% to about 8%, from about 0.1% to about 6%, from about 0.1% to about 4%, from about 0.1% to about 2.5%, from about 0.1% to about 2%, from about 0.1% to about 1.5%, from about 0.1% to about 1%, from about 0.5% to about 10%, from about 0.5% to about 8%, from about 0.5% to about 6%, from about 0.5% to about 4%, from about 0.5% to about 2.5%, from about 0,5% to about 2%, from about 0.5% to about 1.5%, from about 0.5% to about 1%, from about 1% to about 10%, from about 1% to about 8%, from about 1% to about 6%, from about 1% to about 4%, from about 1% to about 2.5%, or from about 1% to about 2% by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges. In preferred embodiments, the compositions comprise gluconolactone in an amount of from about 0.1% to about 6%, preferably from about 0.25% to about 5%, more preferably from about 0.5% to about 4%, even more preferably from about 0.75% to about 3%, most preferably , from about 1% to about 2%, such as about 0.5%, about 0.75%, about 1%, about 1.25%, about 1.5%, about 1.75% or about 2% by weight, based on the total weight of the composition. Amino acids / Amino sulfonic acids / Salts

[0031] It has also been surprisingly discovered that amino acids, amino sulfonic acids and their salts act synergistically with gluconolactone to provide lengthening benefits to curly hair. Thus, the compositions according to the disclosure further comprise at least one compound selected from amino acids, amino sulfonic acids, their salts or their mixtures. Amino acids are simple organic compounds containing both a carboxylic acid group (-COOH) and an amino group (-NH2). Amino sulfonic acids are simple organic compounds containing both a sulfonic acid group (-SO2OH) and an amino group (-NH2). Therefore, the amino acids and / or amino sulfonic acids may, in certain embodiments, be selected from the compounds of formula (I), the compounds of formula (II), their salts or their mixtures: (I) (II)

[0032] in which:

[0033] R represents a hydrogen atom, a linear or branched, preferably linear, C1-C5 alkyl group, a C1-C5 alkyl group, said alkyl group being optionally substituted by at least one group chosen from hydroxyl, -C(O)-OH, -S(O)2-OH, -C(O)-0 M+, and

[0034] S(0)2-0 M+, where M+ represents a cationic counterion such as an alkali metal, a alkaline earth metal or ammonium, and

[0035] n is 0 yes.

[0036] Useful amino acids that may be selected include, but are not limited to, the twenty amino acids that form the proteins of living organisms (standard proteinogenic amino acids): alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, praline, serine, threonine, tryptophan, tyrosine, and valine. In some embodiments, charged amino acids may be selected. Non-limiting examples of charged amino acids include arginine, lysine, aspartic acid, and glutamic acid. In some embodiments, polar amino acids may be selected. Non-limiting examples of polar amino acids include glutamine, asparagine, histidine, serine, threonine, tyrosine, cysteine, methionine, and tryptophan. In some embodiments, hydrophobic amino acids may be selected. Non-limiting examples of hydrophobic amino acids include alanine, isoleucine, leucine, phenylalanine, valine, proline, and glycine.

[0037] Useful amino sulfonic acids that may be selected include, but are not limited to, aminomethane sulfonic acid, aminoethane sulfonic acid (taurine), aminopropane sulfonic acid, aminobutane sulfonic acid, aminohexane sulfonic acid, aminoisopropyl sulfonic acid, aminododecyl sulfonic acid, amino benzene sulfonic acid, aminotoluene sulfonic acid, sulfanilic acid, chlorosulfanilic acid, diamino benzene sulfonic acid, amino phenol sulfonic acid, amino propyl benzene sulfonic acid, and amino hexyl benzene sulfonic acid.

[0038] Mixtures of two or more amino acids or their salts, such as three or more amino acids or their salts, may also be selected. Mixtures of two or more amino sulfonic acids or their salts, such as three or more amino sulfonic acids or their salts, may also be selected. Mixtures of one or more amino acids or their salts and one or more amino sulfonic acids or their salts may also be selected.

[0039] In some embodiments, the compositions comprise at least one compound selected from glycine, alanine, serine, taurine, threonine, phenylalanine, their salts, or mixtures thereof, preferably selected from glycine, taurine, threonine, phenylalanine, their salts, or mixtures thereof. In other embodiments, the compositions comprise glycine or a salt thereof, either as the sole amino acid or in combination with one or more additional compounds selected from amino acids and amino sulfonic acids. In still other embodiments, the compositions comprise taurine or a salt thereof, either as the sole amino sulfonic acid or in combination with one or more additional compounds selected from amino acids and amino sulfonic acids.In still further embodiments, the compositions comprise phenylalanine, glycine, taurine, salts thereof, or a combination thereof, optionally as the sole compounds selected from amino acids and amino sulfonic acids.

[0040] The total amount of compounds selected from amino acids, amino sulfonic acids or their salts in the composition may range from about 0.05% to about 10% by weight, for example from about 0.05% to about 8% by weight, from about 0.05% to about 6% by weight, from about 0.05% to about 4% by weight, from about 0.05% to about 2.5%, from about 0.05% to about 2%, from about 0.05% to about 1.5%, from about 0.05% to about 1%, from about 0.1% to about 10%, from about 0.1% to about 8%, from about 0.1% to about 6%, from about 0.1% to about 4%, from about 0.1% to about 2.5%, from about 0.1% to about 2%, from about 0.1% to about 1.5%, from about 0.1% to about 1%, from about 0.5% to about 10%, from about 0.5% to about 8%, from about 0.5% to about 6%, from about 0.5% to about 4%, from about 0.5% to about 2.5%, from about 0.5% to about 2%, from about 0.5% to about 1.5%, from about 0.5% to about 1%, from about 1% to about 10%, from about 1% to about 8%, from about 1% to about 6%, from about 1% to about 4%, from about 1% to about 2.5%, or from about 1% to about 2% by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges.In preferred embodiments, the compositions comprise a total amount of compounds selected from amino acids, amino sulfonic acids or their salts, in an amount ranging from about 0.1% to about 7%, preferably from about 0.25% to about 6%, more preferably from about 0.5% to about 5%, even more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3%, such as about 1%, about 1.25%, about 1.5%, about 1.75%, about 2%, about 2.25%, about 2.5%, about 2.75% or about 3% by weight, based on the total weight of the composition.

[0041] In exemplary embodiments, the compositions comprise from about 0.1% to about 5%, preferably from about 0.5% to about 4%, more preferably from about 1% to about 3% by weight of glycine, alanine, serine, taurine, threonine, phenylalanine, salts thereof, or mixtures thereof, preferably glycine, taurine, threonine, phenylalanine, salts thereof, or mixtures thereof, based on the total weight of the composition. In other exemplary embodiments, the compositions comprise from about 0.1% to about 5%, preferably from about 0.5% to about 4%, more preferably from about 1% to about 3% by weight of glycine, taurine, salts thereof, or mixtures thereof, based on the total weight of the composition.

[0042] In some embodiments, the amounts of gluconolactone and compounds selected from amino acids, amino sulfonic acids, or their salts are selected such that the total amounts of (b) amino acids / amino sulfonic acids / salts and (a) gluconolactone provide optimal hair lengthening benefits. For example, the weight ratio of (b) amino acids / amino sulfonic acids / salts: (a) gluconolactone may range from about 5:1 to about 1:1, for example, from about 4.5:1 to about 1:1, from about 4:1 to about 1:1, from about 3.5:1 to about 1:1, from about 3:1 to about 1:1, from about 2.5:1 to about 1:1, from about 2:1 to about 1:1, or from about 3:1 to about 1:1. about 1:1, or from about 1.5:1 to about 1:1, preferably from about 3:1 to about 1:1, from about 2.5:1 to about 1:1, from about 2:1 to about 1:1, or from about 1.5:1 to about 1:1. In some embodiments, the amounts of gluconolactone and compounds selected from amino acids and amino sulfonic acids are selected such that the weight ratio of the total amounts of (b) amino acids / amino sulfonic acids / salts:(a) gluconolactone is about 1:1, about 1.5:1, about 2:1, about 2.5:1, about 3:1, about 3.5:1, about 4:1, about 4.5:1, or about 5:1. Solvent

[0043] The compositions according to the disclosure comprise a cosmetically acceptable solvent. The solvent may comprise water, non-aqueous solvents, or mixtures thereof.

[0044] 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.

[0045] In some embodiments, the composition comprises one or more non-aqueous solvents, other than or in addition to the ingredients discussed above. For example, C1-4 alcohols, organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols other than those described above, glycols, vegetable oils, mineral oils, liposomes, laminar lipid materials, or any mixture thereof. Non-limiting examples of solvents that may be used include alkane polyols such as 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, hexylene 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 iso-propanol (isopropyl alcohol);glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-isopropyl ether, diethylene glycol mono-isopropyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol mono-t-butyl ether, diethylene glycol mono-t-butyl ether, 1-methyl-l-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-isopropyl ether, dipropylene glycol monomethyl ether, ether di- monoethyl; propylene glycol, dipropylene glycol mono-n-propyl ether and dipropylene glycol mono-isopropyl ether; 2-pyrrolidone, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbitol, sorbitan, acetin, diacetin, triacetin, sulfolane, or mixtures thereof. At least in some embodiments, the compositions contain water and at least one, e.g., two or more, additional solvent(s) selected from caprylyl glycol, hexylene glycol, ethylhexylglycerin, glycerin, or mixtures thereof.

[0046] The solvent may be present in the composition in an amount ranging from about 50% to about 98% by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges. For example, in one embodiment, the total amount of solvent may be from about 50% to about 95%, from about 60% to about 95%, from about 70% to about 95%, from about 70% to about 90%, from about 75% to 95%, or from about 75% to 90% by weight, based on the total weight of the composition. In some embodiments, the solvent is primarily water, e.g., from about 90% to about 99%, or from about 95% to about 99%, of the total solvent. Additional components

[0047] The compositions according to the disclosure may optionally comprise one or more additional components suitable for use in these compositions. Non-limiting examples of such additional components are provided below. Film-forming polymers

[0048] The compositions according to the disclosure optionally include one or more film-forming polymers. In certain non-limiting embodiments, the film-forming polymers are non-ionic film-forming polymers.

[0049] Useful and non-limiting examples of non-ionic film-forming polymers that may be selected include polyalkyloxazolines; vinyl acetate homopolymers, vinyl acetate copolymers, such as, for example, vinyl acetate-acrylic ester copolymers, vinyl acetate-ethylene copolymers, or vinyl acetate-maleic ester copolymers, for example, dibutyl maleate; acrylic ester homopolymers and copolymers, such as, for example, alkyl acrylate and alkyl methacrylate copolymers, such as the products supplied by Rohm GmbH under the name Eudragit® NE 30 D (INCI name: Acrylates Copolymer); copolymers of acrylonitrile and a non-ionic monomer selected, for example, from butadiene and alkyl (meth)acrylates; homopolymers of styrene; copolymers of styrene, such as, for example, copolymers of styrene, alkyl acrylate and alkyl methacrylate;copolymers; of styrene and butadiene; or copolymers of styrene, butadiene and vinyl-pyridine; polyamides; vinyllactam homopolymers, such as vinylpyrrolidone homopolymers sold, for example, under the names Luviskol® K30 powder by BASF or PVP K30L or K60 solution or K90 by ISP, or such as polyvinylcaprolactam sold under the name Luviskol® Plus by BASF (INCI name PVP); vinyllactam copolymers, such as a poly(vinylpyrrolidone / vinyllactam) copolymer sold under the trade name Luvitec® VPC 55K65W by BASF, poly(vinylpyrrolidone / vinyl acetate) copolymers, such as those sold under the name PVP / VA® S630L, E735, E635 and W735 by ISP, Luviskol® VA 73, VA 64 and VA 37 by BASF (INCI name VP / VA copolymer);and vinylpyrrolidone / methacrylamide / vinylimidazole terpolymers, for example the product sold under the name Luviset® Clear by BASF (INCI name VP / methacrylamide / vinylimidazole copolymer). In various embodiments, the alkyl groups of these polymers optionally contain from 1 to 6 carbon atoms. ;

[0050] In some embodiments, the film-forming polymer is non-ionic. In exemplary embodiments, the non-ionic film-forming polymer may be selected from vinylpyrrolidone / methacrylamide / vinylimidazole terpolymers. In some embodiments, the compositions comprise a vinylpyrrolidone / methacrylamide / vinylimidazole copolymer, either as the sole film-forming polymer or in combination with one or more additional film-forming polymers.

[0051] If present, the total amount of film-forming polymer may be from about 0.05% to about 10% by weight, for example from about 0.05% to about 8%, about 0.05% to about 6%, about 0.05% to about 5%, about 0.05% to about 4%, about 0.05% to about 3%, about 0.05% to about 2%, about 0.05% to about 1%, about 0.1% to about 10%, about 0.1% to about 8%, about 0.1% to about 6%, about 0.1% to about 5%, about 0.1% to about 4%, about 0.1% to about 3%, about 0.1% to about 2%, or about 0.1% to about 1% by weight, based on the total weight of the composition.

[0052] In exemplary embodiments, the compositions comprise from about 0.05% to about 2%, preferably from about 0.1% to about 1%, more preferably from about 0.2% to about 0.5% by weight of nonionic film-forming polymers, for example, a vinylpyrrolidone / methacrylamide / vinylimidazole copolymer, based on the total weight of the composition. Anionic surfactants

[0053] The compositions according to the disclosure optionally comprise at least one anionic surfactant. In various embodiments, suitable anionic surfactants may be selected from sulfate / sulfonate, non-sulfate or carboxylate. For example, alkyl sulfates, alkyl ether sulfates, alkyl monoglyceride sulfates, alkylaryl sulfates, alkyl ether carboxylates, fatty acyl sarcosinates, fatty acyl glutamates, alkyl phosphates, alkyl sulfoacetates, alkoxylated monobasic acids, alkyl sulfonates, alkyl amide sulfonates, alkylaryl sulfonates, alkyl monoglyceride sulfonates, α-olefin sulfonates, paraffin sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkyl amidesulfosuccinates, alkyl sulfoacetates, N-acyltaurates, acylisethionates, alkyl sulfolaurates, their salts, or mixtures thereof, the alkyl groups of these compounds optionally including from 6 to 30 carbon atoms, such as 12 to 28 carbon atoms, 14 to 24 carbon atoms, or 16 to 22 carbon atoms, the aryl group of these compounds being optionally selected from phenyl or benzyl groups,and these compounds being optionally polyoxyalkylenated, for example polyoxyethylenated, including from 1 to 50 ethylene oxide units, such as from 2 to 10 ethylene oxide units. In certain preferred embodiments, the anionic surfactant comprises one or more alkylsulfonates. ,

[0054] When the anionic surfactants are in salt form, they may be chosen from, for example, alkali metal salts such as sodium or potassium salts, ammonium salts, amine salts such as amino alcohol salts, or alkaline earth metal salts such as the magnesium salt.

[0055] In various embodiments, the anionic surfactants may be selected from, for example, C6-C24 alkyl sulfates, for example, C12-C20 alkyl sulfates; C6-C24 alkyl ether sulfates, for example, C12-C20 alkyl ether sulfates, preferably comprising from 2 to 20 ethylene oxide units; C6-C24 alkyl sulfosuccinates, for example, C12-C20 alkyl sulfosuccinates, for example, lauryl sulfosuccinates; C6-C24 alkyl ether sulfosuccinates, for example, C12-C20 alkyl ether sulfosuccinates; C6-C24 acylisethionates, for example, C12-C18 acylisethionates; C6-C24 acylsarcosinates, e.g., C12-C20 acylsarcosinates, e.g., palmitoylsarcosinates; C6-C24 alkyl ether carboxylates, e.g., C12-C20 alkyl ether carboxylates; polyoxyalkylenated (C6-C24) alkyl(amido) ether carboxylic acids and their salts, e.g.those comprising from 2 to 50 alkylene oxide groups, and in particular ethylene oxide; C6-C24 acylglutamates, for example C12-C20 acylglutamates; C6-C24 acylglycinates, for example C12-C20 acylglycinates; or mixtures thereof.

[0056] In at least some embodiments, the compositions may comprise at least one anionic surfactant selected from linear α-olefin sulfonates or their salts. For example, the compositions may comprise at least one anionic surfactant selected from compounds of formula (III) or their salts:

[0057] R-CH2-CH=CH-(CH2)n-SO3-M

[0058] (III)

[0059] in which:

[0060] - R is a saturated linear alkyl radical comprising from 4 to 30 carbon atoms, such as than 6 to 20 carbon atoms or 8 to 18 carbon atoms, and preferably 10 to 14 carbon atoms;

[0061] - n is an integer ranging from 0 to 10, such as from 1 to 4, and preferably n=1; and

[0062] - M is a cosmetically acceptable cation, for example cations derived from alkali or alkaline earth metal or cations derived from organic amines such as alkanolamines, and preferably is selected from ammonium, sodium or potassium.

[0063] In certain embodiments, the at least one anionic surfactant is chosen from linear α-olefin sulfonates according to formula (IV) or their salts: O® M® O=S=O rft xhj R 2

[0064] (IV)

[0065] wherein R is an alkyl group, M is a sodium cation, and n is 1 or 2. For example, the at least one anionic surfactant may be a sodium C14-C16 olefin sulfonate.

[0066] In various embodiments, if present, the total amount of the at least one anionic surfactant may be up to about 10% by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges. For example, the total amount of the at least one anionic surfactant may range from about 0.01% to about 10%, from about 0.01% to about 8%, from about 0.01% to about 5%, from about 0.01% to about 3%, from about 0.01% to about 2%, from about 0.01% to about 1%, from about 0.05% to about 10%, from about 0.05% to about 8%, from about 0.05% to about 5%, from about 0.05% to about 3%, from about 0.05% to about 2%, from about 0.05% to about 1%, from about 0.1% to about 10%, from about 0.1% to about 8%, from about 0.1% to about 5%, from about 0.1% to about 3%, from about 0.1% to about 2%, or from about 0.1% to about 1% by weight, based on the total weight of the composition.

[0067] In some embodiments, the compositions comprise at least one anionic surfactant, which may be selected from sulfate or sulfonate anionic surfactants, preferably alkylsulfonate surfactants, more preferably linear α-olefin sulfonates. In various embodiments, the surfactants Anionic sulfate or sulfonate surfactants, preferably anionic sulfonate surfactants, more preferably linear α-olefin sulfonates may be present in an amount ranging from about 0.01% to about 2.5% by weight, preferably from about 0.1% to about 1% by weight, based on the total weight of the composition. Thickening agents

[0068]

[0056] The compositions according to the disclosure optionally include one or several thickening agents, also called rheology modifying agents. The type and amount of thickening agent(s), if present, will be selected based on the form of the composition and the desired viscosity thereof. Exemplary and non-limiting thickening agents include, for example, polysaccharides. For example, the polysaccharides may be selected from anionic polysaccharides, cationic polysaccharides, non-ionic polysaccharides or mixtures thereof, preferably anionic polysaccharides, cationic polysaccharides or mixtures thereof.In various embodiments, the thickening agents may be selected from celluloses, starches, guar gums, xanthan gums, pullulan gums, alginate gums, agar gums, carrageenan gums, gellan gums, gums arabic, xyloses, tragacanth gums, or derivatives of the foregoing.

[0069] 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, hectorite, 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 deacylated gellan gum, welan gum or hydroxypropyl guar gum, such as Jaguar HP 105 sold by Rhodia.

[0070] Non-limiting examples of celluloses include hydroxyalkylcelluloses, such as hydroxymethylcellulose, methylhydroxyethylcellulose, hydroxyethylcelluloses, hydroxypropylmethylcellulose, hydroxybutylcellulose, hydroxyethylmethylcellulose (also called methylhydroxyethylcellulose) or hydropropylcelluloses, which may or may not contain a fatty chain. Celluloses modified with groups comprising one or more non-ionic fatty chains which may be used include hydroxyethylcelluloses, preferably non-ionic hydroxyethylcelluloses, modified with groups comprising at least one fatty chain, such as alkyl, arylalkyl or alkylaryl groups, or their mixtures, and in which the alkyl groups are preferably C8-C22 alkyl groups, such as the product NATROSOLTM Plus Grade 330 CS (C16 alkyls), 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. Other particular thickening agents suitable for use in the compositions described herein are hydroxypropyl guar gums.

[0071] Non-limiting examples of starches include modified starches, starch-based polymers, methylhydroxypropyl starch, potato starch, modified potato starch, wheat starch, rice starch, starch crosslinked with octenyl succinic anhydride, starch oxide, starch dialdehyde, dextrin, achroodextrin, acetyl starch, starch phosphate, carboxymethyl starch, hydroxyethyl starch, and hydroxypropyl starch.

[0072] In some embodiments, the thickening agents are selected from carrageenan, xanthan gum, cellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, starch, starch acetate, hydroxyethyl starch, hydroxypropyl starch, guar gum, carboxymethylguar gum, carboxymethylhydroxypropylguar gum, hydroxyethylguar gum, hydroxypropylguar gum, xylose gum, cellobiose, dextrin, maltodextrin, scleroglucan, chitosan, ulvan, fucoidan, alginate, pectin, heparin, inulin, levan, or mixtures thereof. In other embodiments, the thickening agents are selected from sclerotium gum, carrageenan, xanthan gum, cellulose gum, cyclodextrin, or mixtures thereof.

[0073] In various exemplary embodiments, the total amount of thickening agents may range from about 0.1% to about 10%, including all sub-ranges therein, such as, for example, about 0.1% to about 9%, about 0.1% to about 8%, about 0.1% to about 7%, about 0.1% to about 6%, about 0.1% to about 5%, about 0.1% to about 4%, about 0.1% to about 3%, about 0.1% to about 2%, about 0.1% to about 1%, about 0.5% to about 10%, about 0.5% to about 9%, about 0.5% to about 8%, about 0.5% to about 7%, about 0.5% to about 6%, from about 0.5% to about 5%, from about 0.5% to about 4%, from about 0.5% to about 3%, from about 0.5% to about 2%, from about 0.5% to about 1%, from about 1% to about 10%, from about 1% to about 9%, from about 1% to about 8%, from about 1% to about 7%, from about 1% to about 6%, from about 1% to about 5%, from about 1% to about 4%, from about 1% to about 3%, or from about 1% to about 2% by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges. Auxiliary components

[0074] Useful auxiliary components that may be selected include, but are not limited to, conditioning agents, dyes / pigments, moisturizing agents, fillers, structuring agents, glossing agents, antioxidants, penetrating agents, sequestrants, perfumes, buffers (e.g., monoethanolamine and / or triethanolamine), dispersants, plant extracts, vegetable oils, preservatives (preservatives), opacifiers, sunscreen agents, pH correcting agents (e.g., citric acid), vitamins (e.g., vitamin E), film-forming polymers other than nonionic film-forming polymers, surfactants other than anionic surfactants, and antistatic agents.

[0075] Optional additional auxiliary components may be present in an amount of up to about 15% by weight, for example from about 0.01% to about 15% or from about 0.1% to about 10% by weight, based on the total weight of the composition.

[0076] In various embodiments, the compositions may have a pH of less than or equal to about 7. For example, the pH of the compositions may range from about 3 to about 6, such as from about 3.5 to about 5, from about 4 to about 4.5, or from about 4 to about 4.3, including all intermediate ranges and sub-ranges. In various embodiments, the compositions comprise a buffering agent or pH adjuster to achieve the desired pH value.

[0077] The compositions according to the disclosure are typically in the form of a liquid, a cream, a gel, a gel-cream, a serum or a lotion, but are not limited to these forms. In a preferred embodiment, the composition is a serum. II. Procedures

[0078] The present disclosure relates to methods for improving the elongation and / or visual length of curly hair by using the compositions described herein. The methods generally comprise applying to the hair any of the compositions according to the disclosure. It has been surprisingly demonstrated that the lengthening effects provided last over time, even under conditions of high humidity.

[0079] The compositions according to the disclosure are typically used to provide a visible lengthening benefit to wavy or curly hair, to enhance the lengthening of hair waves or curls, to provide lasting lengthening of hair waves or curls (even in high humidity conditions and / or over a period of time), to improve curl definition, to provide long-lasting curl definition to wavy or curly hair, and / or to reduce frizz in the hair. The compositions may be useful in a variety of settings, whether for chemically treated or non-chemically treated hair, and / or for natural or unnatural waves or curls (e.g., permed hair). The compositions described herein are particularly suited to multicultural hair types that vary in the degree of curliness and hair type. The degree of curliness or curl type of the hair may vary and is not limited. For example, the curls of hair treated with the compositions described herein may range from slightly wavy to very kinky and curly hair, and may have different textures and colors.

[0080] In certain embodiments, the compositions described herein are useful for increasing perceived hair length, reducing shrinkage of curly hair, and / or reducing hair frizz, particularly in humid and high humidity conditions (e.g., 80% relative humidity, 25°C), by providing long-lasting curl lengthening and / or curl definition of the hair, e.g., for example, providing long-lasting curl lengthening and / or curl definition for 1 hour or more, for 4 hours or more, for 8 hours or more, for 12 hours or more, for 16 hours or more, for 24 hours or more, or for 72 hours or more, after application of a composition according to the disclosure.

[0081] In other embodiments, the compositions are useful for improving curl definition and / or curl hold, and / or reducing frizz of hair, particularly in humid and high humidity conditions (e.g., 80% relative humidity, 25°C), by providing long-lasting curl lengthening and / or curl definition of hair, e.g., for example, providing long-lasting curl lengthening and / or curl definition for 1 hour or more, for 4 hours or more, for 8 hours or more, for 12 hours or more, for 16 hours or more, for 24 hours or more, or for 72 hours or more, after application of a composition according to the disclosure.

[0082] In addition, the compositions may also be used to provide the hair with a variety of desirable sensory benefits, for example, hydration, softness, smoothness, bounce, and / or shine. As such, the compositions are useful for styling (including shaping) the hair while caring for, conditioning, and / or imparting to the hair one or more of the sensory benefits described above.

[0083] Typically, the methods according to the disclosure may include applying a effective amount of a composition disclosed herein to hair having curls, when the hair is dry, wet, damp, or moist. As used herein, the term "effective amount" refers to an amount sufficient to provide a desired lengthening effect to the hair, taking into account the degree of curl, length, volume, and texture of the hair. Typically, about 0.5 grams to about 50 grams of product is applied to the hair, depending on the specific formulation of the product, the length of the hair, its volume, and the type of hairstyle. The composition applied to the hair may be distributed evenly by combing it with the fingers or a means such as a comb or the like. The composition may then be dried, for example, by air drying.The composition may be left on the hair as a leave-in product for any period of time necessary, for example, from about a few seconds (e.g. 1, 3, 5 or 10 seconds) to about 10, 20 or 30 minutes, or longer, for example a few hours or a few days, or until the next time the hair is washed or rinsed.

[0084] In some embodiments, before applying the composition to the hair, the hair may first be cleansed with a commercially available shampoo, or rinsed with water. The composition is then applied to the washed or rinsed hair while the hair is wet, damp, or moist. In other embodiments, before applying the composition to dry hair, the hair may optionally be dampened, moistened, or made wet by spraying with water or using a damp towel, or by applying other treatment compositions that make the hair moist, damp, or wet.

[0085] Alternatively, in some embodiments, the compositions of the disclosure may first be applied to dry hair, and then water or cosmetically acceptable compositions are applied to the hair to moisten, dampen, or wet the hair while the compositions of the disclosure remain on the hair. Hair to which the compositions disclosed herein have been applied may be air-dried without further treatment of the hair, including rinsing or washing the hair.

[0086] In some embodiments, the methods may optionally include braiding and / or twisting the hair to make curls, before or after applying the compositions disclosed herein. In some embodiments, the methods according to the disclosure do not require shaping or styling the hair before, during, and / or after applying the compositions. Tensioning the hair is generally not necessary. Also, in some embodiments, before, during, or after applying the compositions, the hair is not stretched by mechanical means.

[0087] In certain embodiments, after applying the compositions described in herein, the hair may be shaped or styled as desired, such as twisted or the like. In some embodiments, hair treated with the compositions may be twisted within 30 minutes, or within 20 minutes, while the hair is wet or damp.

[0088] The methods of the disclosure generally do not require the use of a reducing agent, including a base, or heating the hair to stretch the curls of the hair or lengthen the curls of the hair. Also, in at least some embodiments, the method does not include the use of a reducing agent, or a base, and / or does not require or include a step of heating the hair after applying the composition thereto in order to achieve the desired lengthening results.

[0089] In some embodiments, a composition disclosed herein is used alone to treat hair, without the use of other hair treatment compositions. In other embodiments, the compositions may be applied to the hair before, during, or after applying another hair treatment or styling composition, such as (e.g., a conditioner, mask, cream, lotion, gel, coloring composition, etc.), to the hair. Also, a composition disclosed herein may be applied to the hair and layered over another composition that is also applied to the hair.

[0090] In various embodiments, methods of treating hair with the compositions of the disclosure provide the hair with various long-lasting benefits described above, without greasy feeling or flaking, compared to hair that has not been treated with a composition of the disclosure. The term "long-lasting," as used herein, means that the lengthening effect and other benefits provided to the hair may remain for a desired period of time, such as a few hours, a few days, or until the hair is rinsed or washed.

[0091] Having described in detail the numerous embodiments of the present invention, it will be apparent that modifications and variations are possible without departing from the scope of the disclosure defined in the appended claims. Further, it should be appreciated that all examples of the present disclosure, while illustrating numerous embodiments of the disclosure, are provided by way of non-limiting examples and therefore should not be construed as limiting the various aspects thus illustrated. It is understood that all definitions herein are provided solely for the purposes of the present disclosure.

[0092] In this document, the terms "comprising", "having" and "including" (or "comprise", "have" and "include") are used in their broad and non-limiting sense. The expression "consisting essentially of" limits the scope of a resale dication to the specified materials or steps and to those which do not materially affect the fundamental and innovative characteristics of the compositions.

[0093] In this application, the use of the singular includes the plural, unless otherwise indicated. The singular forms "a", "an", "the", "the", "the" and "at least one" are understood to encompass the plural as well as the singular, unless the context clearly indicates otherwise, and these expressions, as well as the expression "one or more" which means "at least one", are expressly intended to include the individual components as well as mixtures / combinations thereof. Similarly, the expression "a salt thereof" also refers to "salts thereof".Thus, when the disclosure refers to "an element selected from the group consisting of A, B, C, D, E, F, a salt thereof, 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, 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.

[0094] In this document, the expressions "and mixtures thereof" "and a mixture thereof," "and combinations thereof" "and a combination thereof," "or mixtures thereof" "or a mixture thereof," "or combinations thereof" and "or a combination thereof," are used interchangeably to indicate that the list of components immediately preceding the expression, such as "A, B, C, D, or mixtures thereof" means that the component(s) may be selected from A, B, C, D, A+B, A+B+C, A+D, A+C+D, etc., without limitation of their variations. Thus, the components may be used individually or in any combination thereof.

[0095] For the purposes of this disclosure, it should be noted that, to provide a more concise description, some of the quantitative expressions given herein are not qualified by the term "about." It is understood that, whether the term "about" is used explicitly or not, each quantity given herein is intended to refer to the given actual value, and it is also intended to refer to the approximation to that given value that would be reasonably deduced based on ordinary skill in the art, including approximations due to experimental and / or measurement conditions of that given value. All ranges and quantities given herein are intended to include sub-ranges and quantities using any disclosed point as a bound.Thus, a range of "1% to 10%, like 2% to 8%, like 3% to 5%" is intended to encompass ranges of "1% to 8%", "1% to 5%", "2% to 10%", and so on. All numbers, quantities, ranges, etc., are intended to be modified by the term "about", whether or not it is expressly stated. Similarly, a given range . of “about 1% to 10%” is intended to have both its 1% and 10% bounds modified by the term “about.” The term “about” is used herein to indicate a difference of up to + / - 10% of the stated number, such as + / - 9%, + / - 8%, + / - 7%, + / - 6%, + / - 5%, + / - 4%, + / - 3%, + / - 2%, or + / - 1%. Similarly, all bounds of the ranges are understood to be individually disclosed, so that, for example, a range of 1:2 to 2:1 is understood to disclose a ratio of both 1:2 and 2:1.

[0096] In this document, if a component is described as being present "in an amount up to" a certain amount, it is understood that this component is, in fact, present in the composition, i.e., it is present in an amount greater than 0%.

[0097] “Active ingredient” as used herein with respect to the percentage of an ingredient or raw material, refers to 100% activity of the ingredient or raw material.

[0098] All quantities stated herein relate to the amount of active ingredient unless otherwise stated.

[0099] All percentages, parts and ratios set forth herein are based on the total weight of the compositions of the present disclosure, unless otherwise indicated.

[0100] As used herein, the term "applying a composition to the hair" and variations thereof means contacting the hair with at least one of the compositions of the disclosure in any manner. It may also mean contacting the hair in an effective amount.

[0101] As used herein, the term "styling" hair is intended to include "shaping" hair or altering the shape of hair, such as, for example, lengthening hair curls or defining curls.

[0102] As used herein, the term "curly hair" means any hair that includes a curl or wave. The curl may be natural or unnatural, i.e., formed by chemical treatment or physical treatment of the hair. The degree of curliness of the hair may vary and is not limited.

[0103] As used herein, hair having improved or enhanced curl definition may have curls shaped to appear as crisp (ringlet-like) curls rather than being crimped, curls that appear more individualized, curls that have a more closed appearance, and / or curls that have an enhanced visual appearance of hair color and / or highlights.

[0104] As used herein, the terms "lengthening" and "stretching" hair are interchangeable, and both refer to reducing the degree of waviness or frizziness and / or tightening the waviness or curl of the hair, and "Improving the elongation" of hair or hair curl, and their variants, means that the hair length appears closer to the actual, uncurled, length of the hair. Similarly, measuring or assessing the "elongation" of curly hair refers to the length of hair maintained over a period of time, where hair with greater elongation or length retention looks longer over that period.

[0105] A "leave-in" composition or product means a composition such as a hair treatment or styling composition that is not rinsed out and / or washed out with water or an acceptable solvent after applying the composition to the hair; instead, the composition is left on the hair for a desired period of time, e.g., 1 hour, 2 hours, 3 hours, 4 hours, up to 8 hours, overnight, or as long as necessary, until the next washing or rinsing of the hair.

[0106] In this document, the term “inorganic” refers to a material that does not include carbon.

[0107] As used herein, the term "high humidity" refers to conditions of relative humidity of at least 70% or more, such as relative humidity of at least 75% or more, or relative humidity of at least 80% or more.

[0108] As used herein, the term "organic" refers to a material that is produced substantially or essentially without the use of synthetic materials. "Organic materials" include materials consisting of organic compounds / molecules comprising at least one carbon atom.

[0109] The terms "substantially free" or "essentially free" as used herein mean that the specific material may be used in a manufacturing process in small amounts that do not materially affect the fundamental and novel characteristics of the compositions according to the disclosure. The terms may also mean that the specific material is not used in a manufacturing process but may still be present in a starting material that is included in the composition.

[0110] As used herein, the term "salts" throughout the disclosure may include salts having a counterion such as an alkali metal, alkaline earth metal, or ammonium counterion. This list of counterions is not, however, limiting.

[0111] As used herein, the term "substantially free" or "essentially free" means that the specific material may be present in small amounts that do not materially affect the fundamental and novel characteristics of the compositions according to the disclosure. For example, there may be less than 2% by weight of a specific material added to a composition, relative to the total weight of the compositions (provided that an amount less than 2% by weight does not materially affect the fundamental and novel characteristics of the compositions according to the disclosure). Similarly, the compositions may include less than 2%, less than 1.5%, less than 1%, less than 0.5%, less than 0.1%, less than 0.05%, or less than 0.01%, or none of the specified materials. In addition, any components that are positively presented in the present disclosure may be negatively excluded from the claims, for example, a claimed composition may be “free,” “essentially free” (or “substantially free”) of one or more components that are positively presented in the present disclosure.The term "substantially free" or "essentially free" as used herein may also mean that the specific material is not added to the composition but may still be present in a starting material that is included in the composition.

[0112] As used herein, the term "surfactants", as well as any specifically identified surfactant, includes salts of surfactants, even if not explicitly mentioned.

[0113] As used herein, the term "synthetic" refers to a material that is not of natural origin. The terms "natural" and "of natural origin" mean a material of natural origin, such as derived from plants, which also cannot be subsequently chemically or physically modified. "Of plant origin" means that the material comes from a plant.

[0114] As used herein, the term "treat" (and its grammatical variations) refers to the application of the compositions of the present disclosure to the surface of keratinous materials, such as hair.

[0115] Unless otherwise expressly stated, it is in no way intended that any method disclosed herein be construed as requiring that its steps be performed in any specific order. Accordingly, where a method claim does not expressly state an order for its steps to be followed or where it is not specifically stated in the claims or descriptions that the steps are to be limited to a specific order, it is in no way intended that any particular order be inferred. EXAMPLES

[0116] The following examples are intended to be non-limiting and explanatory in nature only. In the examples, the amounts are expressed as a percentage by weight (% by weight) of active ingredients, relative to the total weight of the composition.

[0117] Example 1-1 - Compositions with glycine and various concentrations of g luco- nolactone

[0118] Compositions 1A-1D of Table 1 were prepared by combining glycine with varying amounts of gluconolactone in water, and the pH was corrected with a small amount of citric acid or trisodium citrate, if necessary, to a pH of about 4.1. A first control (Cl) comprised only water, and a second control (C2) comprised only water with a small amount of trisodium citrate.

[0119] [Tables 1] Inventive Comparative Witness Cl C2 C3 C4 C5 IA IB IC 1D Glycine 2 2 2 2 2 Gluconolactone and 1 5 1 2 3 5 Water QSà 100 Ratio Glycine: Gluconolactone and - - - - - 2:1 1:1 0.67:1 0.4:1

[0120] Identical strands of very curly hair were washed with a standard shampoo, rinsed and detangled (Time -1). The strands were soaked in one of the compositions 1A-1D or C1-C5 and excess water was removed by squeezing each strand between the fingers five (5) times, which also served to mechanically stretch the hair (Time 0). The treated strands of hair were allowed to air dry for 18 hours (Time 1). The treated strands were then placed in a humidity chamber at 80% relative humidity at 25°C for 8 hours (Time 2). The strands of hair treated with each of the compositions 1A-1D and C1 were evaluated for elongation (length retention), curl definition and frizz at each of Time 0, Time 1 and Time 2.

[0121] [Fig.lA] shows that, at Time 2, each of the compositions 1A-1D containing glycine and varying amounts of gluconolactone surprisingly provided a significant improvement in length retention of very curly hair, compared to that provided by compositions C1-C5, even after high humidity. [Fig.lB] shows that each of the strands treated with compositions 1A-1D demonstrated significantly better lengthening, curl definition and frizz control than strands treated with compositions C1-C5 at every moment, even when subjected to high humidity.

[0122] Example 1-1 therefore demonstrates that glycine in combination with gluconolactone at various concentrations and ratios surprisingly provides synergistic results beneficial to curly hair, such as lengthening, curl definition and frizz control.

[0123] Example 1-2 - Compositions with glycine and various concentrations of g luco-nolactone

[0124] The study of Example 1-1 was repeated a second time on a second series of strands of very curly hair, with similar results in which compositions 1A-1D provided better elongation, curl definition and frizz control than compositions C1-C5, even when the hair was subjected to high humidity.

[0125] Example 1-2 therefore confirms the results of Example 1-1, namely that glycine combined with gluconolactone in various concentrations and ratios surprisingly provides synergistic results beneficial to curly hair, such as lengthening, curl definition and frizz control.

[0126] Example 2-1 - Compositions with glycine and gluconolactone at variable pH

[0127] The inventive compositions 2A-2D of Table 2A were prepared by combining identical amounts of gluconolactone and glycine with water in the amounts shown, and adding a pH adjuster (citric acid or trisodium citrate) in an amount sufficient to achieve the specified final pH. A control (Cl) consisted of only water.

[0128] [Tables2A] Inventive Control Cl 2A 2B 2C 2D Gluconolactone 1 1 2 2 Glycine 2 2 2 2 Citric acid or trisodium citrate QS QS QS QS Water 100 QS to 100 QS to 100 QS to 100 QS to 100 Measured pH value - 3.3 4.1 5.0 6.0

[0129] Identical locks of very curly hair were washed with a standard shampoo, rinsed and detangled. Equal amounts of inventive compositions 2A-2D or control C1 were applied to separate locks of wet hair and distributed by raking through the curls to ensure even distribution. (Time 0). The treated hair strands were then allowed to air dry for 18 hours, after which the film on the hair was broken by running fingers through each strand from top to bottom three (3) times (Time 1). The treated strands were then placed in a humidity chamber at 80% relative humidity at 25°C for 8 hours (Time 2).

[0130] The hair strands treated with one of the compositions 2A-2D or the control C1 were evaluated in terms of length at Time 1 compared to the length at Time 0, and in terms of length at Time 2 compared to the length at Time 1, in order to determine the length retention of each strand over the period concerned. [Fig.2] shows that each of the compositions 2A-2D offered an improvement in the length retention of very curly hair, compared to the control C1. The results are also shown in Table 2B.

[0131] [Tables2B] Length retention over time Control Inventive Cl 2A 2B 2C 2D Time 0 —> Time 1 76% 78% 92% 86% 96% Time 1 —> Time 2 70% 75% 86% 73% 72%

[0132] Example 2-1 demonstrates that compositions comprising gluconolactone and glycine provide beneficial length retention to curly hair over a range of pH values.

[0133] Example 2-2 - Compositions with glycine and gluconolactone at varying pH

[0134] The study of Example 2-1 was repeated a second time on a second series of locks of very curly hair, with similar results, compositions 2A-2D ensuring better length retention than Cl, even when the hair was subjected to high humidity.

[0135] Example 2-2 therefore confirms the results of Example 2-1, namely that glycine combined with gluconolactone at different pH values ​​allows beneficial synergistic preservation of the length of curly hair.

[0136] Example 3-1 - Hair Styling Compositions

[0137] The inventive and comparative hair styling compositions of Table 3 were prepared by combining the components shown with water and a pH adjuster in an amount sufficient to achieve a final pH in the range of about 4.2 to about 5.2.

[0138] [Tables3] Inventive Comparative 3A 3B C6 C7 C8 C9 CIO Cil Glycine 2 2 2 2 Gluconolactone 1 1 1 1 Xanthan gum 0.75 0.75 0.75 0.75 Phenoxyethanol 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 Ethylhexylglycerin 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.09 Water QS to 100 QS to 100 QS to 100 QS to 100 QS to 100 QS to 100 QS to 100

[0139] Identical strands of very curly hair were washed with a standard shampoo, rinsed and detangled (Time -1). Equal amounts of one of the inventive compositions 3A-3B or the comparative compositions C6-C11 were applied to separate strands of wet hair and distributed by raking through the curls to ensure even distribution (Time 0). The treated strands of hair were then allowed to air dry for 18 hours (Time 1). The treated strands were then placed in a humidity chamber at 80% relative humidity at 25°C for 5 hours (Time 2). The strands of hair treated with each of the compositions 3A-3B or C6-C11 were evaluated for elongation (length retention), curl definition and frizz at each of Time -1, Time 0, Time 1 and Time 2.

[0140] [Fig. 3A] shows that the inventive hair styling composition 3A surprisingly provided better length retention to very curly hair, compared to the comparative hair styling compositions C6-C11. [Fig. 3B] shows that each of the strands treated with the inventive compositions 3A or 3B demonstrated significantly better lengthening, curl definition and frizz control than the strands treated with the comparative compositions C6-C11 at every time point, even when subjected to high humidity.

[0141] Example 3-1 therefore demonstrates that the hair treatment compositions according to the disclosure surprisingly provide better elongation (length retention), curl definition and frizz control to curly hair than the hair treatment compositions not according to the disclosure.

[0142] Example 3-2 - Hair Styling Compositions

[0143] The study of Example 3-1 was repeated a second time on a second set of strands of very curly hair, with similar results, the inventive compositions 3A-3B providing better elongation (length retention), curl definition and frizz control to curly hair than the comparative compositions C6-C11, even when the hair was subjected to high humidity.

[0144] Example 3-2 therefore confirms the results of Example 3-1, namely that the compositions according to the disclosure provide surprising benefits to curly hair.

[0145] Example 4 - Compositions with gluconolactone and various amino acids

[0146] The inventive and comparative hair styling compositions of Table 4 were prepared by combining the components shown with water and a pH adjuster (citric acid or trisodium citrate) in an amount sufficient to achieve a final pH in the range of about 4.5 to about 5.3.

[0147] [Tables4] Glucon o-lacton e Taurin e Arginine e Serine Threonine e Phenyl -alanin e Glycin e PH corrector Water Inv ent 4A 1 2 QS QSà 100 if 4B 1 2 QS QSà 100 4C 1 2 QS QSà 100 4D 1 2 QS QSà 100 4E 1 2 QS QSat 100 4F 1 2 QS QSat 100 Co mp C12 2 QS QSat 100 ara tive C13 2 QS QSat 100 C14 2 QS QSat 100 C15 2 QS QSat 100 C16 2 QS QSat 100 C17 2 QS QSat 100 C18 1 QS QS to 100

[0148] Identical strands of very curly hair were washed with a standard shampoo, rinsed and detangled (Time -1). Equal amounts of one of the inventive compositions 4A-4F or comparative compositions C12-C18 were applied to separate strands of wet hair and distributed by raking through the curls to ensure even distribution (Time 0). The treated hair strands were allowed to air dry for 18 hours (Time 1). The treated strands were then placed in a humidity chamber at 80% relative humidity at 25°C for 5 hours (Time 2). Hair strands treated with compositions 4A-4F or C12-C18 were evaluated for elongation (length retention), curl definition, and frizz at each of Time -1, Time 0, Time 1, and Time 2.

[0149] [Fig. 4A] shows that the inventive hair styling compositions 4A-4F provided surprisingly better length retention of very curly hair, compared to the comparative hair styling compositions C12-C18. [Fig. 4B] shows that each of the strands treated with the inventive compositions 4A-4F demonstrated significantly better lengthening, curl definition and frizz control than the strands treated with the comparative compositions C12-C18 at every time point, even when subjected to high humidity.

[0150] Example 4 therefore demonstrates that hair styling compositions according to the disclosure comprising gluconolactone in combination with various amino acids surprisingly provide better elongation (length retention), curl definition and frizz control to curly hair than hair treatment compositions not according to the disclosure.

[0151] The above examples demonstrate that the compositions according to the disclosure comprising gluconolactone and at least one compound selected from amino acids, amino sulfonic acids, their salts, or mixtures thereof, provide surprising and unexpected synergistic benefits such as improved curl lengthening, long-lasting curl lengthening, and / or frizz control to the hair.

[0152] It will be apparent to those skilled in the art that various modifications and variations may be made to the compositions and methods according to the disclosure without departing from the spirit or scope of the disclosure. Thus, it is intended that the disclosure cover such modifications and variations and their equivalents.

Claims

Claims

1. A process for enhancing the lengthening of curly hair, comprising applying to the hair a composition comprising: (a) gluconolactone in an amount of from about 0.05% to about 10% by weight based on the total weight of the composition, (b) at least one compound selected from amino acids, amino sulfonic acids, salts thereof, or mixtures thereof, the amino acid or amino sulfonic acid being selected from glycine, salts thereof, or mixtures thereof, in an amount of from about 0.05% to about 10% by weight based on the total weight of the composition, and (c) at least one solvent, wherein the pH of the composition is less than about 7, and wherein the total amounts of (a) and (b) are such that the weight ratio of (b):(a) in the composition is from about 5:1 to about 1:

1.

2. The process of claim 1, wherein: the composition comprises gluconolactone in an amount of from about 0.1% to about 5%, more preferably from about 0.5% to about 3%, most preferably from about 1% to about 2% by weight, based on the total weight of the composition; and the composition comprises a total amount of amino acids, amino sulfonic acids and their salts of from about 0.1% to about 8%, more preferably from about 0.5% to about 6%, still more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3% by weight, based on the total weight of the composition.

3. A process according to any preceding claim, wherein the total amounts of (a) gluconolactone and (b) compounds selected from amino acids, amino sulfonic acids and their salts in the composition are such that the weight ratio of (b) amino acids / amino sulfonic acids / salts: (a) gluconolactone in the composition is between about 4:1 and about 1:1, more preferably between about 3:1 and about 1:1, still more preferably between about 2.5:1 and about 1:1, most preferably between about 2:1 and about 1:

1.

4. A process according to any preceding claim, in which the composition further comprises at least one additional component chosen from thickening agents, anionic polysaccharides, pH regulators, film-forming polymers, or mixtures thereof.

5. The process of claim 1, wherein the composition comprises: (a) from about 0.1% to about 5%, preferably from about 0.5% to about 3%, more preferably from about 1% to about 2% gluconolactone; (b) from about 0.1% to about 8%, preferably from about 0.5% to about 6%, more preferably from about 0.75% to about 4%, most preferably from about 1% to about 3% of at least one amino acid, amino sulfonic acid, or salts thereof selected from glycine, its salts, or mixtures thereof; (c) at least one solvent; and (d) at least one additional component selected from thickening agents, anionic polysaccharides, pH adjusters, film-forming polymers, or mixtures thereof;wherein the total amounts of (a) gluconolactone and (b) compounds selected from amino acids, amino sulfonic acids and their salts in the composition are such that the weight ratio of (b) amino acids / amino sulfonic acids / salts: (a) gluconolactone in the composition is between about 5:1 and about 1:1; and wherein all amounts are by weight, relative to the total weight of the composition.;

6. Process according to claim 5, wherein the composition comprises at least one film-forming polymer selected from polyalkyloxazolines, vinyl acetate homopolymers, vinyl acetate copolymers, acrylic ester homopolymers and copolymers, copolymers of acrylonitrile and a non-ionic monomer, styrene homopolymers, styrene copolymers, styrene and butadiene copolymers, or styrene, butadiene and vinylpyridine copolymers, polyamides, vinyllactam homopolymers, vinyllactam copolymers, vinylpyrrolidone / methacrylamide / vinylimidazole terpolymers, or mixtures thereof, preferably selected from a copolymer of vinylpyrrolidone / metha-crylamide / vinylimidazole.

7. A process according to any preceding claim, in wherein the pH of the composition is between about 3 and about 6, preferably between about 3.5 and about 5, more preferably between about 4 and about 4.5, more preferably between about 4 and about 4.

3.

8. A process according to any preceding claim, wherein the composition is a leave-on composition.

9. A process according to any preceding claim, wherein the process does not include a step of heating the hair after applying the composition to the hair.

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