Hair care serum composition

Abstract

The present invention relates to a hair care serum composition, comprising: a) at least two polymers, b) at least one silicone, c) at least one amidoamine, d) at least one organic acid, e) at least one cationic surfactant, and f) at least nonionic surfactant. The invention is also related to a method for hair treatment and reconstruction and use of a hair care serum composition.

Description

[0001] HAIR CARE SERUM COMPOSITION FIELD OF THE INVENTION

[0002] The present invention relates to a hair care serum composition. The hair care serum composition comprises at least two polymers, at least one silicone, at least one amidoamine, at least one organic acid, at least one cationic surfactant, and at least one nonionic surfactant. The present invention also relates to a method for hair treatment and reconstruction and use of a hair care serum composition.

[0003] BACKGROUND OF THE INVENTION

[0004] In the field of the cosmetic treatment of keratin fibers, in particular human keratin fibers, and more particularly hair, consumers desire hair care treatments that can impart moisture and reconstruct the damaged hair, which can improve the appearance of frizzy hair.

[0005] The quality and condition of the hair are generally adversely affected by several factors, like the action of external agents such as sunlight, wind, pollution, humidity, and chemicals in swimming pools, and also by mechanical or chemical treatments, such as brushing, combing, shampooing, dyeing, bleaching, permanentwaving and / or relaxing. Hair is thus damaged by these various factors and may over time become dry, coarse, or dull, especially in fragile areas, and more particularly at the ends leading to split ends. Under such circumstances, the hair can also become less manageable, more frizzy and less disciplined, and more difficult to style or shape.

[0006] It is sought to treat and reconstruct keratin fibers that have been sensitized and / or damaged, in particular the treatment of keratinous hair fibers, which have an opaque, dull, brittle, lifeless, and / or weak appearance, as well as dry and split ends.

[0007] Cellulose and gums are used to achieve different goals in a formulation, which may be related to film formation, stability, textures, etc. Silicones, most of the time, are related to the appearance of cosmetics, film formation, shine, etc. In most products developed for hair care, it is common to find a type of cellulose, which can sometimes be associated with gum. When the gum is cationic, it is hardly used in rinse-off products, since after the rinse, the gum load will allow good interaction with the water and it can come out of the yam, wasting its presence in the initial formulation.

[0008] One way to reduce friction and obtain high performance in terms of fiber coverage is to invest in film-forming polymers, however, it is rarely observed in literature and products the combination of more than two polymers for this purpose. Following the consumer movement in the treatment category for more liquid and fluid texture with skincare knowledge and the ideal balance of the hair care ingredients, one objective of the present invention is to provide an alternative hair care experience with a new sensoriality to hair care routines and immediate reconstruction effects: strengthened and aligned hair, with no stiffness and full of shine.

[0009] Although care products that address these problems already exist in the market, the hair care system of the present invention makes it possible to obtain improved results in the hair, such as better manageability, discipline, detangle, softness and clean feel, repair and texture satisfaction, frizz control or less frizziness, and less hair breakage.

[0010] SUMMARY OF THE INVENTION

[0011] The invention concerns a skincare serum texture for a hair care product with the aim to repair the hair, replenishing the hair's moisture without leaving it greasy, oily, and weighting down the hair. The product can be used as a rinse-off or a leavein.

[0012] The hair care serum composition of the present invention contains a combination of polymers and caring ingredients, which formulation may be related to film formation, stability, textures, etc.

[0013] It was surprisingly found that the use of two celluloses with different molecular weights can associate and form intertwined structures. Added to a cationic gum and a mix of two types of silicones, the deposition of this entire silicone polymer complex becomes fast, resistant, and individually uniform on the fiber. The presence of a positively charged silicone at acidic pH potentiates the deposition initiated by the cationic guar gum, as both amodimethicone and gum silicone will have a high affinity for the damaged thread, as the thread is predominantly negatively charged. The high molecular weight of the other silicone, dimethicone, also potentiates deposition by intertwining with other polymer chains. Therefore, the considerable increase in the weight of the structure also brings a high slip (less friction), neutralization of loads, greater coverage area, and resistance to rinse-off.

[0014] Instrumental tests show that the invention considerably increases the flexibility of the damaged wire, which can be translated into greater resistance. Expert and laboratory tests show that the formulation has an immediate effect on the transformation and coverage of the wires, generating wet and dry results of a high alignment of the fiber. From this, it is possible to suggest that there is an increase in the weight of the threads due to the deposition of the silicon polymer complex and ease of drying since the thread becomes more hydrophobic. The excellent results in rinse-off and leave-in show that the formulation is versatile and unique.

[0015] Generally, rinse-off products are different from leave-in, but the present invention has proven that a single formulation can have excellent results in these very different scenarios.

[0016] Other subjects and characteristics, aspects, and advantages of the present invention will emerge even more clearly on reading the detailed description and the examples that follow.

[0017] DETAILED DESCRIPTION OF THE FIGURES

[0018] The figures are included to provide a further understanding of the invention and constitute part of this specification.

[0019] Figure 1 is the result of evaluation on straightened and dirty hair in an instrumental test flexibility.

[0020] Figure 2 is the result of evaluation on bleached hair in an instrumental test flexibility.

[0021] DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention is directed to a hair care serum composition comprising: a) at least two polymers, b) at least one silicone, c) at least one amidoamine, d) at least one organic acid, e) at least one cationic surfactant, and f) at least one non ionic surfactant.

[0023] In an embodiment, the hair care serum composition of the present invention comprises at least two polymers selected from xanthan gum, hydroxypropyl guar, sclerotium gum, guar hydroxypropyltrimonium chloride, and hydroxyethylcellulose.

[0024] In an embodiment, the hair care serum composition of the present invention comprises at least two polymers present in a concentration range from 0.01 % to 15.0% by weight, based on the total weight of the composition. In a preferred embodiment, the hair care serum composition of the present invention comprises at least one silicone selected from dimethicone, dimethiconol, cyclosiloxanes, amodimethicone, and mixtures thereof.

[0025] In a preferred embodiment, the hair care serum composition comprises at least one silicone present in a concentration range from 0.01 % to 15.0% by weight, based on the total weight of the composition.

[0026] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one amidoamine selected from stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, stearamidoethyl diethylamine, and mixtures thereof.

[0027] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one amidoamine present in a concentration range from 0.01 % to 5% by weight, based on the total weight of the composition.

[0028] In a more preferred embodiment, the hair care serum composition of the present invention comprises at least one organic acid selected from lactic acid, oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaic acid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid, and mixtures thereof.

[0029] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one organic acid present in a concentration range from 0.01 % to 3% by weight, based on the total weight of the composition.

[0030] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one cationic surfactant selected from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, steartrimonium chloride, stearalkonium chloride and dicetyldimonium chloride, and mixtures thereof.

[0031] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one cationic surfactant present in a concentration range from 0.01 % to 5% by weight, based on the total weight of the composition.

[0032] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one nonionic surfactant which is a polyethylene derivative of hydrogenated castor oil.

[0033] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one nonionic surfactant present in a concentration range from 0.01 % to 5% by weight, based on the total weight of the composition.

[0034] In another preferred embodiment, the hair care serum composition of the present invention comprises: a) from 0.01 % to 15.0% by weight based on the total weight of the composition, of at least two polymers selected from xanthan gum, hydroxypropyl guar, sclerotium gum, guar hydroxypropyltrimonium chloride, and hydroxyethylcellulose, b) from 0.01 % to 15.0% by weight based on the total weight of the composition, of at least one silicone selected from dimethicone, dimethiconol, cyclosiloxanes, amodimethicone, and mixtures thereof, c) from 0.01 % to 5% by weight, based on the total weight of the composition, of at least one amidoamine selected from stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, stearamidoethyl diethylamine, and mixtures thereof, d) from 0.01 % to 3% by weight, based on the total weight of the composition, of at least one organic acid selected from lactic acid, oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaic acid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid, and mixtures thereof, e) from 0.01 % to 5% by weight, based on the total weight of the composition, of at least one cationic surfactant selected from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, steartrimonium chloride, stearalkonium chloride, and dicetyldimonium chloride, and mixtures thereof, and f) from 0.01 % to 5% by weight, based on the total weight of the composition, of at least one nonionic surfactant selected from polyethylene derivative of hydrogenated castor oil.

[0035] The present invention also relates to a method for hair treatment and reconstruction, wherein the method comprises contacting the hair with the hair care serum composition, as disclosed in the present invention.

[0036] Polymers

[0037] Non-limiting examples of at least two polymers of the present invention include cyamopsis tetragonoloba (guar) gum, hydroxypropyl guar, sclerotium gum, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, microcrystalline cellulose, hydroxybutylmethyl cellulose, hydroxypropyl cellulose, hydroxyethyl ethyl cellulose, cetyl hydroxyethyl cellulose, polyvinylpyrrolidone, hydroxypropyl starch phosphate, sodium carboxymethyl starch, polymers of ethylene oxide (e.g., PEG-20, PEG-150, PEG-18, PEG14, PEG-90M, etc.), and mixtures thereof.

[0038] In a preferred embodiment the at least two polymers include xanthan gum, sclerotium gum, dehydroxanthan gum, cellulose, cellulose gum, nonionic guar gum, anionic guar gum, diutan gum, carrageenan, gellan gum, welan gum, pectin, starch, galactoarabinan, alginate, pullulan, carboxymethyl hydroxyethylcellulose, cellulose acetate propionate carboxylate, hydroxyethylcellulose, hydroxyethyl ethylcellulose, hydroxypropylcellulose, hydroxypropyl methylcellulose, methyl hydroxyethylcellulose, microcrystalline cellulose, sodium cellulose sulfate and mixtures thereof.

[0039] In an embodiment, the at least two polymers are selected from noncellulose cationic polysaccharides, including guar gums or hydroxypropyl guar gums containing trialkylammonium cationic groups; quaternized cellulose derivatives; cellulose derivatives grafted with a water-soluble monomer comprising a quaternary cellulose derivative grafted with a water-soluble monomer comprising a quaternary ammonium, including grafted hydroxyalkylcelluloses, and mixtures thereof.

[0040] In one or more embodiments, the at least two polymers are selected from xanthan gum, hydroxypropyl guar, sclerotium gum, guar hydroxypropyltrimonium chloride, and hydroxyethylcellulose.

[0041] The total amount of the at least two polymers may vary but is typically from about 0.1 to about 15% by weight, from about 0.1 % to about 12% by weight, or from 0.1 % to about 10% by weight, or from 0.1 % to about 9% by weight, or from 0.1 % to about 6% by weight, including ranges and sub-ranges therebetween, based on the total weight of the hair care serum composition.

[0042] Silicone

[0043] The hair care serum composition of the present invention comprises at least one silicone which may be selected from dimethicone, dimethiconol, cyclosiloxanes such as cyclopentasiloxane and cyclohexasiloxane, amino silicones such as amodimethicone, and mixtures thereof.

[0044] Non-limiting examples of dimethicone also include its derivatives that may be used in cosmetic products, such as alkyl dimethicone, behenyl dimethicone, cetyl dimethicone, aminopropyl dimethicone, aminopropyl phenyl trimethicone, bis aminopropyl dimethicone, bis aminopropyl / ethoxy aminopropyl dimethicone.

[0045] Non-limiting examples of dimethiconol also include its derivatives that may be used in cosmetic products, such as dimethiconol arginine, dimethiconol beeswax, dimethiconol behenate, dimethiconol cysteine, dimethiconol meadowfoamate, dimethiconol methionine, dimethiconol panthenol, dimethiconol stearate, dimethiconol / silsesquioxane copolymer, trimethylsiloxysilicate / dimethiconol crosspolymer, and acrylates / dimethiconol acrylate copolymer.

[0046] The term “amino silicone” is intended to mean any silicone comprising at least one primary, secondary or tertiary amine or a quaternary ammonium group.

[0047] In a preferred embodiment, at least one silicone is selected from dimethicone, dimethiconol, cyclosiloxanes, amodimethicone, and mixtures thereof.

[0048] The total amount of the at least one silicon may vary but is typically from about 0.01 to about 15% by weight, from about 0.01 % to about 12% by weight, or from 0.01 % to about 10% by weight, or from 0.01 % to about 7% by weight, or from 0.01 % to about 5% by weight, including ranges and sub-ranges therebetween, based on the total weight of the hair care serum composition.

[0049] Amidoamine

[0050] The hair care serum composition of the present invention comprises at least one amidoamine. Amidoamines are derived from the reaction of fatty acids with polyamines that contain at least one tertiary amine group.

[0051] Non-limiting examples of amidoamines include stearamidopropyldimethylamine, stearam idopropy Idiethylam ine, stearam idoethyldiethylam ine, stearam idoethyldimethylam ine, palmitamidopropyldimethylamine, palmitamidopropyldiethylamine, palmitamidoethyldiethylamine, palmitamidoethyldimethylamine, behenamidopropyldimethylamine, behenamidopropyldiethylmine, behenamidoethyldiethylamine, behenamidoethyldimethylamine, arachidamidopropyldimethylamine, arachidamidopropyldiethylamine, arachid- amidoethyldiethylamine, arachidamidoethyldimethylamine, and mixtures thereof.

[0052] In a preferred embodiment, the hair care serum composition of the present invention comprises at least one amidoamine which may be selected from stearam idopropyl dimethylamine, behenamidopropyl dimethylamine, stearam idoethyl diethylamine, and mixtures thereof. The total amount of the at least one amidoamine may vary but is typically from about 0.01 to about 5% by weight, from about 0.01 % to about 4% by weight, or from 0.01 % to about 3% by weight, or from 0.01 % to about 2% by weight, or from 0.01 % to about 1 % by weight, including ranges and sub-ranges therebetween, based on the total weight of the hair care serum composition.

[0053] Organic acid

[0054] The organic acids of the present disclosure are selected from mono-, di-, and / or tri-carboxyl ic acids which may be chosen especially from linear, branched, and / or cyclic, saturated or unsaturated, or even aromatic, polycarboxylic acids, containing 2 to 50 or 2 to 40 carbon atoms, in particular, 3 to 36, 3 to 18, or 4 to 12 carbon atoms, or even 5 to 10 carbon atoms; the acid comprising one, two, or three carboxylic groups COOH; and possibly comprising 1 to 10 or 1 to 6 identical or different heteroatoms, chosen from O, N, and S; and / or possibly comprising at least one perfluoro radical chosen from -CF2- (divalent) or -CF3.

[0055] In some cases, the mono-, di-, and / or tri-carboxylic acids are saturated, linear and aliphatic and contain 2 to 36 carbon atoms or 3 to 18 carbon atoms or even 4 to 12 carbon atoms; or alternatively are aromatic and contain 8 to 12 carbon atoms or are cyclic anhydrides of a polycarboxylic acid.

[0056] Among the mono-, di-, and / or tri-carboxylic acids or anhydrides thereof that may be used, mention may be made, alone or as a mixture, of: dicarboxylic acids such as decanedioic acid, dodecanedioic acid, cyclopropanedicarboxylic acid, cyclohexanedicarboxylic acid, cyclobutanedicarboxylic acid, naphthalene-1 ,4- dicarboxylic acid, naphthalene-2,3-dicarboxylic acid, naphthalene-2,6-dicarboxylic acid, suberic acid, oxalic acid, malonic acid, succinic acid, phthalic acid, terephthalic acid, isophthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, pimelic acid, sebacic acid, azelaic acid, glutaric acid, adipic acid, fumaric acid, maleic acid, itaconic acid and fatty acid dimers (especially of C36); tricarboxylic acids such as 2- hydroxy- 1 ,2,3-propanetricarboxylic acid (citric acid), cyclohexanetricarboxylic acid, trimellitic acid, 1 ,2,3-benzenetricarboxylic acid and 1 ,3,5-benzenetricarboxylic acid, tetracarboxylic acids such as butanetetracarboxylic acid and pyromellitic acid, cyclic anhydrides of these acids and especially phthalic anhydride, trimellitic anhydride, maleic anhydride and succinic anhydride.

[0057] In an embodiment, the non-polymeric, mono-, di-, and / or tri-carboxylic acids are selected from the group consisting of lactic acid, oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaic acid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid, and mixtures thereof.

[0058] The total amount of the organic acid may vary but is typically from about 0.01 % to about 3% by weight, or from about 0.01 % to about 2% by weight, or from about 0.01 % to about 1 % by weight, including ranges and sub-ranges therebetween, based on the total weight of the hair care serum composition.

[0059] Cationic surfactants

[0060] The hair care serum composition of the present invention comprises at least one cationic surfactant.

[0061] Non-limiting examples of the at least one cationic surfactant (non- polymeric) can be incorporated into the hair care serum compositions of the instant disclosure. The term “cationic surfactant” means a surfactant that is positively charged. This surfactant may bear one or more positive permanent charges or may contain one or more functions that are cationizable in the composition according to the disclosure.

[0062] Non-limiting examples of cationic surfactants include behenalkonium chloride, benzethonium chloride, cetylpyridinium chloride, behentrimonium chloride, lauralkonium chloride, cetalkonium chloride, cetrimonium bromide, cetrimonium chloride, cethylamine hydrofluoride, chlorallylmethenamine chloride (quaternium-15), distearyldimonium chloride (quaternium-5), dodecyl dimethyl ethylbenzyl ammonium chloride(quaternium-14), quaternium-22, quaternium-26, quaternium-18 hectorite, dimethylaminoethylchloride hydrochloride, cysteine hydrochloride, diethanolammonium ROE (10) oletyl ether phosphate, diethanolammonium ROE (3)oleyl ether phosphate, tallow alkonium chloride, dimethyl dioctadecylammoniumbentonite, stearalkonium chloride, domiphen bromide, denatonium benzoate, myristalkonium chloride, laurtrimonium chloride, ethylenediamine dihydrochloride, guanidine hydrochloride, pyridoxine HCI, iofetamine hydrochloride, meglumine hydrochloride, methylbenzethonium chloride, myrtrimonium bromide, oleyltrimonium chloride, polyquaternium-1 , procainehydrochloride, stearalkoniumhectonite, stearyl trihydroxyethyl propylenediamme dihydrofluonde, tallowtnmonium chloride, and hexadecyltnmethyl ammonium bromide, behentrimonium methosulfate, steartrimonium chloride, dicetyldimonium chloride.

[0063] The cationic surfactant(s) may be chosen from optionally polyoxyalkylenated, primary, secondary or tertiary fatty amines, or salts thereof, and quaternary ammonium salts, and mixtures thereof.

[0064] In a preferred embodiment, the at least one cationic surfactant is selected from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, steartrimonium chloride, stearalkonium chloride and dicetyldimonium chloride, and mixtures thereof.

[0065] The total amount of the at least one cationic surfactant may vary but is typically from about 0.01 to about 5% by weight, or from about 0.01 % to about 4% by weight, or from 0.01 % to about 3% by weight, or from 0.01 % to about 2% by weight, or from 0.01 % to about 1 % by weight, including ranges and sub-ranges therebetween, based on the total weight of the hair care serum composition.

[0066] Nonionic surfactants

[0067] The hair care serum composition according to the present invention comprises at least one nonionic surfactant.

[0068] Non-limiting examples of nonionic surfactants include alkoxylated derivatives of the following: fatty alcohols, alkyl phenols, fatty acids, fatty acid esters, and fatty acid amides, wherein the alkyl chain is in the C12-50 range, typically in the C16-40 range, more typically in the C24 to C40 range, and having from about 1 to about 110 alkoxy groups. The alkoxy groups are selected from the group consisting of C2-C6 oxides and their mixtures, with ethylene oxide, propylene oxide, and their mixtures being the typical alkoxides. The alkyl chain may be linear, branched, saturated, or unsaturated. Of these alkoxylated nonionic surfactants, the alkoxylated alcohols are typical, and the ethoxylated alcohols and propoxylated alcohols are more typical. The alkoxylated alcohols may be used alone or in mixtures with those alkoxylated materials disclosed herein-above.

[0069] In a preferred embodiment, the at least one nonionic surfactant is selected from alkoxylated derivatives of glyceryl esters, sorbitan esters, and alkyl polyglycosides, wherein the alkoxy groups are selected from the group consisting of C2-C6 oxides and their mixtures, with ethoxylated or propoxylated derivatives of these materials being typical. Nonlimiting examples of commercially available ethoxylated materials include TWEEN® (ethoxylated sorbitan mono-, di- and / or tri-esters of C12 to Cis fatty acids with an average degree of ethoxylation of from about 2 to 20).

[0070] Preferred nonionic surfactants are those formed from a fatty alcohol, a fatty acid, or a glyceride with a C4 to C36 carbon chain, preferably a C12 to C18 carbon chain, more preferably a C to C18 carbon chain, derivatized to yield an HLB of at least 8. HLB is understood to mean the balance between the size and strength of the hydrophilic group and the size and strength of the lipophilic group of the surfactant. Such derivatives can be polymers such as ethoxylates, propoxylates, polyglucosides, polyglycerins, polylactates, polyglycolates, polysorbates, and others that would be apparent to one of ordinary skill in the art. Such derivatives may also be mixed polymers of the above, such as ethoxylate / propoxylate species, where the total HLB is preferably greater than or equal to 8. Preferably the nonionic surfactants contain ethoxylate in a molar content of from 10 to 25, more preferably from 10 to 20 moles.

[0071] Particularly preferred nonionic surfactants of the present disclosure are chosen from polyethylene glycol ethers of glyceryl esters, PEG-30 glyceryl stearate, and sorbitan esters such as sorbitan palmitate.

[0072] In a preferred embodiment, the at least one nonionic surfactant includes alkoxylated alcohols such as a polyethylene derivative of hydrogenated castor oil, for example, PEG-40 hydrogenated castor oil.

[0073] The total amount of the at least one nonionic surfactant may vary but is typically from about 0.01 to about 5% by weight, or from about 0.01 % to about 4% by weight, or from 0.01 % to about 3% by weight, or from 0.01 % to about 2% by weight, or from 0.01 % to about 1 % by weight, including ranges and sub-ranges therebetween, based on the total weight of the hair care serum composition.

[0074] Additional Ingredients

[0075] The hair care serum composition according to the present invention may also comprise any other additional ingredient that is usually used in the field of hair care cosmetic compositions.

[0076] One skilled in the art can select the amount of the additional ingredients so as not to adversely impact the final use of the hair care serum composition according to the present invention.

[0077] The hair care serum composition of the present invention may further comprise at least one additional cosmetically acceptable ingredient, such as solvents, water, preservatives, pH adjusters, fragrances, and mixtures thereof. Other additional ingredients may include thickeners, sequestrants and chelators, consistency regulators, antioxidants, dyestuffs such as soluble dyes and pigments, optical brighteners, electrolytes and stabilizers, plant extracts, proteins, amino acids, vitamins, glycols, emollients, derivatives of the foregoing, and mixtures thereof.

[0078] Non-limiting examples of pH adjusting agents include potassium acetate, potassium hydroxide, sodium carbonate, sodium hydroxide, phosphoric acid, succinic acid, sodium citrate, tartaric acid, citric acid, salicylic acid, glutamic acid, maleic acid, aspartic acid, boric acid, lactic acid, sodium hydrogen carbonate, ethanol amines, and mixtures thereof.

[0079] The pH adjusting agent is used in an amount so that the pH of the hair care serum composition of the present invention is less than or equal to 6, preferably from 2.5 to 5.0.

[0080] TERMS

[0081] As used herein, unless otherwise indicated, the limits of a range of values are included within this range, in particular in the expressions “between... and... ” and “from... to ...”.

[0082] As used herein, the use of the term “comprising” also discloses the embodiment wherein no features other than the specifically mentioned features are present ( / .e. “consisting of”).

[0083] All percentages, parts, and ratios herein are based upon the total weight of the compositions of the present disclosure unless otherwise indicated.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the field the present invention belongs to. When the definition of a term in the present description conflicts with the meaning as commonly understood by those skilled in the field the present invention belongs to, the definition described herein shall apply.

[0085] All ranges and values disclosed herein are inclusive and combinable. For example, any value or point described herein that falls within a range described herein can serve as a minimum or maximum value to derive a sub-range, etc. Furthermore, all ranges provided are meant to include every specific range within, and a combination of sub-ranges between, the given ranges. Thus, a range from 1 -5, includes specifically 1 , 2, 3, 4, and 5, as well as sub-ranges such as 2-5, 3-5, 2-3, 2- 4, 1-4, etc. Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of ingredients and / or reaction conditions are to be understood as being modified in all instances by the term “about,” meaning within + / - 5% of the indicated number.

[0086] Unless otherwise specified, all numerical values expressing the amount of ingredients and the like used in the description and claims are to be understood as being modified by the term “about”. Accordingly, unless indicated to the contrary, the numerical values and parameters described herein are approximate values that are capable of being changed according to the desired performance obtained as required.

[0087] As used herein, the expression “at least one” used in the present description is equivalent to the expression “one or more”.

[0088] As used herein, “treatment and reconstruction” means imparting to the hair by means of the method according to the invention is softer to the touch (no stiffness) and remains well-behaved since the presence of less frizziness and volume is observed.

[0089] In particular, as used herein, “reconstructing” the hair is associated with the impression of a treatment that changes the structure of hair, replacing the mass that was lost due to damage over time.

[0090] The state of repairing and / or reconstructing is evaluated by comparing the hair treated with the composition to be tested in contrast with the hair treated with a commercial product.

[0091] After treatment, the hair has shiny hair movement and lightness, with a perception of hair reconstruction.

[0092] Moreover, the cosmetic properties conferred on the hair are persistent, in particular with respect to washing. Consequently, the hair can be protected, repaired, and cosmetically transformed in a long-lasting manner.

[0093] “INCI” is an abbreviation of International Nomenclature of Cosmetic Ingredients, which is a system of names provided by the International Nomenclature Committee of the Personal Care Products Council to describe personal care ingredients.

[0094] PREPARATION AND USE

[0095] The hair care serum composition according to the present invention can be prepared by mixing ingredients a) to f), as essential ingredients, as well as additional ingredients(s), as explained above. An illustrative manufacturing process comprises the following steps:

[0096] Step (1 ): dispersing the two polymers in water and heating until 60 °C;

[0097] Step (2): adding the amidoamine with the cationic surfactant to 70-75°C than neutralize the solution with the organic acid;

[0098] Step (3): mixing and equalizing temperature to 70°C;

[0099] Step (4): adding 7% of water to colling the system;

[0100] Step (5): at 60°C, adding the nonionic surfactants and mixing until completely dispersion.

[0101] Step (6): adding additional ingredients (if present), solvents, preservative, and fragrance and adjusting the pH (if necessary) with a pH adjuster.

[0102] The composition according to the present invention has the final pH between 2.5 and 5.0 and viscosity in the range of 0.01 to 10 Pa.s, measured at 25 °C on rheomat 70M2.

[0103] The method and means to mix the above essential and optional ingredients are not limited. Any conventional method and means can be used to mix the above essential and optional ingredients to prepare the hair care serum composition according to the present invention.

[0104] In an embodiment, the composition of the present disclosure can be used as a leave-in composition wherein the composition can be applied to wet hair or dry hair.

[0105] In other embodiments, the composition of the present disclosure can be used as a rinse-off composition wherein the composition is applied to the hair and allowed to remain on the hair from 5 to 20 minutes and is then rinsed off from the hair with water.

[0106] Implementation of the present disclosure is provided by way of the following examples. The examples serve to illustrate the technology without being limiting in nature.

[0107] An illustrative and non-limitative process for preparing the hair care serum composition of the present invention is as follows, taking the hair care serum composition of Ex.1 for illustration.

[0108] According to an additional aspect, the present invention also relates to a method for hair treatment and reconstruction, wherein the method comprises contacting the hair with the hair care serum composition, as disclosed herein. EXAMPLES

[0109] Examples 1 to 8 - Inventive Compositions

[0110] The following examples are given by way of illustration of the present invention and shall not be interpreted as limiting the scope. Table 1 - Formulations of the present invention

[0111] Example 9- State-of-the-art Composition

[0112] Comparative state-of-the-art composition may comprise the following ingredients: Table 2 - Comparative formulation of State-of-the-art

[0113] Qualitative test

[0114] Two prototype products were tested in two stages. At the first moment, the users applied the inventive composition of Ex. 1 after shampooing and wait for 5 minutes of action, to then rinse off the product and optionally use a conditioner or mask. This routine was based on one of the liquid keratin routines. In the second moment, the users were free to choose their routine.

[0115] During application, the inventive composition presented fast absorption and easy application linked to the fluid and light texture, and further easy to untangle. Also, the inventive composition confers to the hair fast results with a soft touch, shine and movement, less frizz, and volume with treated ends. As a result, the users mentioned that the inventive composition can be a stand-alone treatment.

[0116] Flexibility test

[0117] Two instrumental flexibility tests were conducted in straightened and dirty hair swatch and bleached hair swatch compared to natural hair swatch as references. The objective of these tests was to evaluate the impact of hair serum composition of present invention on the hair flexibility, after rinse-off treatments. The results can be evaluated in Figure 1 and Figure 2, in which a high maximum force (N) indicated that the hair was stiff and rigid, and a lower maximum force indicated that the hair was softer and more flexible.

[0118] The straightened and dirty hair presented lower flexibility when compared to the natural hair reference. After the application of the composition of Ex. 1 on straightened and dirty hair, the hair presented flexibility similar to natural hair. The bleached hair also presented lower flexibility when compared to the natural hair reference. After the application of the composition of Ex. 1 on bleached hair, the hair presented flexibility similar to natural hair.

[0119] The inventive composition of Ex. 1 restored the hair flexibility of the straightened and dirty hair and the bleached hair by 28% and 27%, respectively.

[0120] Comparative tests

[0121] The performance of hair care composition according to Ex. 1 and the composition according to the Ex. 9 (state-of-the-art) was compared in a qualitative test conducted with consumers with damaged hair, users of reconstruction treatments, and hair shape I to IV. For the first two usages, the consumers applied the compositions to wet hair after washing it with shampoo and leaving it for 5 minutes, then they rinsed the hair.

[0122] The composition of the present invention gave more body and texture to the hair, the feeling of silk, smooth texture, and shine, hair feel moisturized and repaired, strengthener hair, easy to spread / to dose, pleasant texture, and no stiffness feeling during the application, when compared to the state of art composition.

Claims

SET OF CLAIMS1 . A hair care serum composition, comprising: a) at least two polymers, b) at least one silicone, c) at least one amidoamine, d) at least one organic acid, e) at least one cationic surfactant, and f) at least one non ionic surfactant.

2. The hair care serum composition, according to claim 1 , wherein the at least two polymers are selected from xanthan gum, hydroxypropyl guar, sclerotium gum, guar hydroxypropyltrimonium chloride, and hydroxyethylcellulose.

3. The hair care serum composition, according to claim 1 , wherein the at least two polymers are present in a concentration range from 0.01 % to 15.0% by weight, based on the total weight of the composition.

4. The hair care serum composition, according to claim 1 , wherein the at least one silicone is selected from dimethicone, dimethiconol, cyclosiloxanes, amodimethicone, and mixtures thereof.

5. The hair care serum composition, according to claim 1 , wherein the at least one silicone is present in a concentration range from 0.01 % to 15.0% by weight, based on the total weight of the composition.

6. The hair care serum composition, according to claim 1 , wherein the at least one amidoamine is selected from stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, stearamidoethyl diethylamine, and mixtures thereof.

7. The hair care serum composition, according to claim 1 , wherein the at least one amidoamine is present in a concentration range from 0.01 % to 5% by weight, based on the total weight of the composition.

8. The hair care serum composition, according to claim 1 , wherein the at least one organic acid is selected from lactic acid, oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaic acid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid, and mixtures thereof.

9. The hair care serum composition, according to claim 1 , wherein the at least one organic acid is present in a concentration range from 0.01 % to 3% by weight, based on the total weight of the composition.

10. The hair care serum composition, according to claim 1 , wherein the at least one cationic surfactant is selected from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, steartrimonium chloride, stearalkonium chloride and dicetyldimonium chloride, and mixtures thereof.11 . The hair care serum composition, according to claim 1 , wherein the at least one cationic surfactant is present in a concentration range from 0.01 % to 5% by weight, based on the total weight of the composition.

12. The hair care serum composition, according to claim 1 , wherein the at least one nonionic surfactant is a polyethylene derivative of hydrogenated castor oil.

13. The hair care serum composition, according to claim 1 , wherein the at least one nonionic surfactant is present in a concentration range from 0.01 % to 5% by weight, based on the total weight of the composition.

14. The hair care serum composition, according to claim 1 , comprises: a) from 0.01 % to 15.0% by weight based on the total weight of the composition, of at least two polymers selected from xanthan gum, hydroxypropyl guar, sclerotium gum, guar hydroxypropyltrimonium chloride, and hydroxyethylcellulose, b) from 0.01 % to 15.0% by weight based on the total weight of the composition, of at least one silicone selected from dimethicone, dimethiconol, cyclosiloxanes, amodimethicone, and mixtures thereof, c) from 0.01 % to 5% by weight, based on the total weight of the composition, of at least one amidoamine selected from stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, stearamidoethyl diethylamine, and mixtures thereof, d) from 0.01 % to 3% by weight, based on the total weight of the composition, of at least one organic acid selected from lactic acid, oxalic acid, malonic acid, malic acid, glutaric acid, citraconic acid, succinic acid, adipic acid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaic acid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid, and mixtures thereof, e) from 0.01 % to 5% by weight, based on the total weight of the composition, of at least one cationic surfactant selected from cetrimonium chloride,behentrimonium chloride, behentrimonium methosulfate, steartrimonium chloride, stearalkonium chloride, and dicetyldimonium chloride, and mixtures thereof, and f) from 0.01 % to 5% by weight, based on the total weight of the composition, of at least one nonionic surfactant selected from polyethylene derivative of hydrogenated castor oil.

15. A method for hair treatment and reconstruction, wherein the method comprises contacting the hair with the hair care serum composition, as defined in any one of claims 1 to 14.

16. A use of a hair care serum composition, as defined in any one of claims 1 to 14, for manufacturing a cosmetic product for strengthened and / or aligned hair, with no stiffness and full of shine.

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