WO2016139124A1

WO2016139124A1 - Hair treatment agent containing methionyl methionine and a mixture of anionic and amphoteric surfactants

Info

Publication number: WO2016139124A1
Application number: PCT/EP2016/053977
Authority: WO
Inventors: Erik Schulze Zur Wiesche; Volker Scheunemann
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2015-03-04
Filing date: 2016-02-25
Publication date: 2016-09-09
Also published as: DE102015203826A1

Abstract

The present invention relates to a hair treatment agent containing methionyl methionine, a surfactant mixture of anionic and amphoteric/zwitterionic surfactants, a hair care component of synthetic origin and an aqueous carrier. The hair treatment agent is used for the cleaning and care of human hair.

Description

HAIR TREATMENT AGENT CONTAINING METHIONYLMETHIONINE AND A MIXTURE OF ANIONIC AND AMPHOTEEN TENSIDES

The present invention relates to hair treatment compositions containing a surfactant mixture, a hair care component of synthetic origin and a dipeptide.

Environmental influences and oxidative hair treatments often lead to impaired combability of dry and wet hair. Furthermore, the gloss and suppleness are adversely affected by the attacked outer structure of the keratinic fibers. Multifunctional cosmetic products are known in the art. In particular, these include the so-called "2 in 1" shampoos, which not only cleanse the hair, but also condition it.These products are highly appreciated by the consumer because of their product performance, at least one process step, for example, conditioning with a classical hair conditioner; On the other hand, these products, which clean and condition the hair at the same time, are not suitable for all hairs, especially fine hair is overconditioned by such products, for example, in one insufficient hairstyle structure with low volume, little hold and fullness of the hairstyle noticeable.

The object of the present invention is therefore to cleanse the hair on the one hand, to condition it sufficiently, in particular to provide improved combability of dry and wet hair, and yet to allow a good hairstyle structure with support, fullness and volume after washing.

It has now surprisingly been found that the abovementioned objects are achieved to a great extent by a hair treatment composition containing methionylmethionine, a hair care component of synthetic origin and a surfactant mixture of anionic and amphoteric / zwitterionic surfactants.

This hair treatment agent cleanses the hair and leads to the improvement of the finish, in particular the wet and dry combability, to improve the gloss and to improve the moisture balance without negatively affecting the manageability in terms of volume, hold and fullness. The hair treatment agent also causes an increase in the inner hair structure. A first subject of the present invention is therefore a hair treatment composition containing - based on the weight of the total composition - a) 0.0001 to 30 wt .-% methionylmethionine,

b) 0.01 to 60% by weight of a surfactant mixture of anionic and amphoteric / zwitterionic surfactants,

c) 0.001 to 5 wt .-% of a hair care component of synthetic origin and d) an aqueous carrier.

In a preferred embodiment of the present invention, the hair treatment agent is used to clean and care for human hair. Preferred hair treatment compositions are therefore, for example, hair shampoos.

The hair treatment composition contains as component a) methionylmethionine. Methionylmethionine is the dipeptide of methionine and has the following structure:

From the dipeptide methionylmethionine exist the four different stereoisomers DD, LL, DL and LD. Of the four stereoisomers, only the L-methionyl-L-methionine is natural, the three other dipeptides L-methionyl-D-methionine, D-methionyl-L-methionine, and D-methionyl-D-methionine are all unnatural. The described positive effects in hair treatment compositions can be achieved with all four stereoisomeric dipeptides. The Methionylmethionin can be used as DD / LL / LD / DL mixture, as DL / LD mixture or DD / LL mixture. In principle, the use of a stereoisomeric dipeptide alone or in combination with one or two further stereoisomers is conceivable. If only one stereoisomeric dipeptide is used, preference is given to choosing L-methionyl-L-methionine or D-methionyl-D-methionine.

The two pairs DD / LL-methionylmethionine and DL / LD-methionylmethionine are diastereomeric and have different physical data. Thus, for example, the diastereomeric pair DD / LL at room temperature has a solubility of 21.0 g / l in water, whereas the solubility of the diastereomeric pair DL / LD is 0.4 g / l. Accordingly, it may be preferable to use the methionylmethionine as a DD / LL mixture or as a DD / LL / LD / DL mixture with a high proportion of the DD / LL diastereomeric pair. These mixtures can be easily in an aqueous phase or an aqueous-surfactant phase of a Incorporate / dissolve hair treatment product.

The hair treatment compositions contain the methionyl methionine preferably in an amount of 0.01 to 5.0 wt .-% and particularly preferably from 0.1 to 3.0 wt .-%, each based on the weight of the ready hair treatment agent.

A second essential ingredient b) in the hair treatment compositions is a surfactant mixture of anionic and amphoteric / zwitterionic surfactants.

Suitable anionic surfactants are preferably added to the hair treatment compositions - based on the total weight of an agent - in amounts of from 0.05 to 45% by weight, more preferably from 1 to 25% by weight, particularly preferably from 2 to 17.5% by weight. % and in particular from 3 to 15% by weight added.

Suitable anionic surfactants which can be used in the hair treatment compositions include:

straight-chain or branched, saturated or mono- or polyunsaturated alkyl sulfonates having 8 to 24 C atoms,

linear alpha-olefin sulfonates having 8 to 24 C atoms,

- alkyl sulfates and alkyl polyglycol ether sulfates of the formula R-O- (CH ₂ -CH ₂ O) n -SO ₃ X, in which R is preferably a straight-chain or branched, saturated or mono- or polyunsaturated alkyl or alkenyl radical having 8 to 24 carbon atoms, n is 0 or 1 to 12 and X is an alkali or alkaline earth metal ion or protonated triethanolamine or the ammonium ion,

Sulfonates of unsaturated fatty acids having 8 to 24 carbon atoms and 1 to 6 double bonds.

Particularly preferred anionic surfactants are straight-chain or branched alkyl ether sulfates which contain an alkyl radical having 8 to 18 and in particular 10 to 16 C atoms and 1 to 6 and in particular 2 to 4 ethylene oxide units. The surfactant mixture of anionic and amphoteric / zwitterionic surfactants very particularly preferably contains sodium lauryl ether sulfate (INCI: sodium laureth sulfate) and very particularly preferably sodium lauryl ether sulfate with 2 ethylene oxide units.

Further particularly preferred anionic surfactants are straight-chain or branched alkyl sulfates which contain an alkyl radical having 8 to 18 and in particular 10 to 16 carbon atoms. Particularly preferred are the sodium, magnesium and / or triethanolamine salts of linear or branched lauryl, tridecyl and / or myristyl sulfates. Amphoteric surfactants, which are also referred to as zwitterionic surfactants, are those surface-active compounds which carry in the molecule at least one quaternary ammonium group and at least one -COO ^" or -SO 3 ^" group. Amphoteric / zwitterionic surfactants are also understood to mean those surface-active compounds which, apart from a Cs-C24-alkyl or -acyl group, contain at least one free amino group and at least one -COOH or -SCbH group and are capable of forming internal salts.

Suitable amphoteric / zwitterionic surfactants may in the hair treatment compositions - based on the total weight of an agent - preferably in amounts of 0.05 to 20 wt .-%, more preferably from 0.25 to 15 wt .-%, particularly preferably from 0.5 to 10 and especially from 1 to 5 wt .-% are added.

Suitable amphoteric / zwitterionic surfactants may be selected from compounds of the following formulas (i) to (v) in which the radical R is in each case a straight-chain or branched, saturated or mono- or polyunsaturated alkyl or alkenyl radical having 8 to 24 carbon atoms .

(I)

(G)

(Iii)

(Iv)

(V)

Particularly suitable amphoteric / zwitterionic surfactants include the surfactants cocamidopropyl betaine and disodium cocoamphodiacetate known under the INCI name.

Particularly mild as well as well-cleansing and well-conditioning hair treatment agents can be obtained if the hair treatment agents contain at least one anionic surfactant and at least one amphoteric / zwitterionic surfactant in a ratio of 6: 1 to 1: 1, preferably 5: 1 to 1: 5: 1 and especially from 4: 1 to 2: 1.

The total amount of anionic and amphoteric / zwitterionic surfactants, based on the total weight of an agent, is preferably in total from 0.1 to 40.0% by weight, more preferably from 1.0 to 35.0% by weight and more preferably 3, 0 to 30.0% by weight.

As the third essential ingredient c), the hair treatment agents contain a hair care component of synthetic origin. Hair care components of synthetic origin are compounds which, for example due to cationic or cationizable groups, in particular protonated amine groups or quaternary ammonium groups, have a substantivity to human hair. Synthetic origin means that it is not an unchanged natural product or a chemical modification of a natural product. Suitable hair care components of synthetic origin are, for example, cationic polymers of synthetic origin, amphoteric polymers of synthetic origin, polyorganosiloxanes and mixtures thereof

The cationic polymers may be homopolymers or copolymers wherein the quaternary nitrogen groups are contained either in the polymer chain or preferably as a substituent on one or more of the monomers. Suitable cationic monomers are unsaturated, free-radically polymerizable compounds which carry at least one cationic group, in particular ammonium-substituted vinyl monomers such as trialkylmethacryloxyalkylammonium, trialkylacryloxyalkylammonium, dialkyldiallylammonium and quaternary vinylammonium monomers having cyclic, cationic nitrogen-containing groups such as pyridinium, imidazolium or quaternary pyrrolidones, for example Alkylvinylimidazolium, Alkylvinylpyridinium, or Alyklvinylpyrrolidon salts. The alkyl groups of these monomers are preferably lower alkyl groups such as, for example, C 1 - to C 7 -alkyl groups, particularly preferably C 1 - to C 3 -alkyl groups.

The ammonium group-containing monomers may be copolymerized with non-cationic monomers. Suitable comonomers are, for example, acrylamide, methacrylamide; Alkyl and dialkylacrylamide, alkyl and dialkylmethacrylamide, alkyl acrylate, alkyl methacrylate, vinylcaprolactone, vinylcaprolactam, vinylpyrrolidone, vinyl esters, for example vinyl acetate, vinyl alcohol, propylene glycol or ethylene glycol, wherein the alkyl groups of these monomers are preferably C1 to C7 alkyl groups, more preferably C1 to C3 alkyl groups are.

From the large number of these polymers have proven to be particularly:

Homopolymers of the general formula - {CH ² - [CRCOO- (CH 2) m N ⁺ R ² R ³ R ⁴ ]} _n X ^" ,

in which R = -H or -Ch, R ² , R ³ and R ^{4 are} independently selected from C 1-4 -alkyl

, Alkenyl or hydroxyalkyl groups, m = 1, 2, 3 or 4, n is a natural number and

X ^"is a physiologically acceptable organic or inorganic anion

Polymers are preferred those for which at least one of the following conditions applies: R represents a methyl group, R ² , R ³ and R ⁴ stand for methyl groups, m has the value 2.

As physiologically compatible counterions X ^" , for example, halide ions, sulfate ions,

Phosphate ions, Methosulfationen and organic ions such as lactate, citrate, tartrate and

Acetate ions into consideration. Preference is given to methosulfates and halide ions, in particular chloride.

Suitable cationic polymers are, for example, copolymers of the formula (Copo).

Formula (Copo)

in which:

x + y + z Q

Q is from 3 to 55,000, preferably from 10 to 25,000, more preferably from 50 to 15,000, more preferably from 100 to 10,000, even more preferably from 500 to 8,000 and in particular from 1000 to 5000, x is (0 to 0 , 5) Q, preferably for (0 to 0.3) Q and in particular for the values 0, 1, 2, 3, 4, 5, wherein the value 0 is preferred,

y stands for (0.1 to 0.95) Q, preferably for (0.5 to 0.7) Q and in particular for values of 1 to 24000, preferably of 5 to 15000, particularly preferably of 10 to 10000 and in particular of 100 to 4800, z stands for (0.001 to 0.5) Q, preferably for (0, 1 to 0.5) Q and in particular for values from 1 to 12500, preferably from 2 to 8000, particularly preferably from 3 to 4000 and in particular from 5 to 2000th

Regardless of which of the preferred copolymers of the formula (copo) are employed, hair treatment compositions are preferred which are characterized in that the ratio of (y: z) is 4: 1 to 1: 2, preferably 4: 1 to 1: 1 ,

Regardless of which copolymers can be used in the compositions, hair treatment compositions are preferred, in which the copolymer has a molecular weight of 10000 and 20 million gmol ^"1, preferably from 100,000 to 10 million ^{gmol" 1,} more preferably from 500,000 to 5 million gmol ^~ and especially from 1, 1 million to 2.2 million gmol ^-1 .

A most preferred copolymer, constructed as previously shown, is commercially available under the name Polyquaternium-74.

A particularly suitable homopolymer is the optionally crosslinked, poly (methacryloyloxyethyltrimethylammonium chloride) with the INCI name Polyquaternium 37. Such products are, for example, under the names Rheocare ^® CTH (Cosmetic Rheologies) and Synthalen ^® CR (3V Sigma) are commercially available. The homopolymer is preferably used in the form of a nonaqueous polymer dispersion. Such polymer dispersions are available under the names Salcare ^® SC 95 and Salcare ^® SC 96 in the trade.

Another preferred cationic polymer comprises at least one structural unit of the formula (IV), at least one structural unit of the formula (V), at least one structural unit of the formula (VI) and at least one structural unit of the formula (VII)

wherein

R and R ⁴ independently of one another represent a hydrogen atom or a methyl group, X ¹ and X ² independently of one another represent an oxygen atom or a group NH,

A and A ² independently of one another are a group of ethane-1, 2-diyl, propane-1, 3-diyl or butane-1, 4-diyl, R ² , R ³ , R ⁵ and R ⁶ are each independently a (Ci to C4) alkyl group, R ⁷ is a (Cs to C3o) alkyl group.

According to the above formulas and all following formulas, a chemical bond marked with the symbol ^{* stands} for a free valency of the corresponding structural fragment. To compensate for the positive polymer charge in the agent are all possible physiologically acceptable anions, such as chloride, bromide, hydrogen sulfate, methyl sulfate, ethyl sulfate, tetrafluoroborate, phosphate, hydrogen phosphate, dihydrogen phosphate or p-toluenesulfonate, triflate.

Examples of (C 1 to C 4) -alkyl groups are methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl.

Examples of (Cs to C30) alkyl groups are octyl (capryl), decyl (caprinyl), dodecyl (lauryl), tetradecyl (myristyl), hexadecyl (cetyl), octadecyl (stearyl), eicosyl (arachyl), docosyl (behenyl).

Subsequent cationic polymers can be used in the compositions if the cationic polymers of the abovementioned formulas (IV) to (VII) fulfill one or more of the following characteristics:

R and R ⁴ each represent a methyl group,

X ¹ stands for a group NH,

X ² stands for a group NH,

A and A ² are each independently ethane-1, 2-diyl or propane-1, 3-diyl,

R ² , R ³ , R ⁵ and R ⁶ independently of one another represent methyl or ethyl, (particularly preferably methyl),

R ⁷ is a (C 10 to C 24) alkyl group, in particular decyl (caprinyl), dodecyl (lauryl), tetradecyl (myristyl), hexadecyl (cetyl), octadecyl (stearyl), eicosyl (arachyl) or docosyl (behenyl).

It is preferred to select the structural unit of formula (VII) from at least one structural unit of formula (VI 1-1) to (VII-8)

(Vi-4)

In addition, it proves to be particularly preferred to choose as the structural unit of the formula (VII) the structural unit of the formula (VI-7) and / or the formula (VI-8). The structural unit of formula (VI-8) is a most preferred structural unit.

Furthermore, in view of achieving the object, it has proved to be preferable, when the structural unit of the formula (VII) is selected, to consist of at least one structural unit of the formulas (VI 1-1) to (VII-8)

(VII-8), wherein each R ⁷ is a (Cs to C30) alkyl group.

In turn, particularly preferred structural unit of the formula (VII) are the structural units of the formula (VII-7) and / or the formula (VII-8) wherein each R ⁷ is octyl (capryl), decyl (caprinyl), dodecyl (lauryl ), Tetradecyl (myristyl), hexadecyl (cetyl), octadecyl (stearyl), eicosyl (arachyl) or Docosyl (behenyl). The structural unit of the formula (VII-8) represents a very particularly preferred structural unit of the formula (VII).

A very particularly preferably cationic polymer present in the composition comprises at least one structural unit of the formula (IV), at least one structural unit of the formula (V), at least one structural unit of the formula (VI-8) and at least one structural unit of the formula (VII-8) .

wherein R ⁷ is octyl (capryl), decyl (caprinyl), dodecyl (lauryl), tetradecyl (myristyl), hexadecyl (cetyl), octadecyl (stearyl), eicosyl (arachyl) or docosyl (behenyl).

A very particularly preferred cationic polymer according to the invention is the copolymer of N-vinylpyrrolidone, N-vinylcaprolactam, N- (3-dimethylaminopropyl) methacrylamide and 3- (methacryloylamino) propyl-lauryl-dimethylammonium chloride (INCI name: Polyquaternium-69), which is, for example under the trade name Aqua style ^® 300 marketed (28-32 wt .-% of active substance in ethanol-water mixture, molecular weight 350,000) by the company ISP.

Further preferred cationic polymers of synthetic origin are, for example, polymeric dimethyldiallylammonium salts and their copolymers with esters and amides of acrylic acid and methacrylic acid. Under the names Merquat ^® 100 (Poly (dimethyldiallylammonium chloride)) and Merquat ^® 550 (dimethyldiallylammonium chloride-acrylamide copolymer) are examples of such cationic polymers having the INCI - designation Polyquaternium-7,

Vinylpyrrolidone vinylimidazoliummethochloride copolymers, such as those offered under the names Luviquat.RTM ^® FC 370, FC 550 and the INCI name Polyquaternium-16 and FC 905 and HM 552,

quaternized vinylpyrrolidone / dimethylaminoethyl, for example vinylpyrrolidone / dimethylaminoethyl copolymer available under the trade names Gafquat ^® 755 N and Gafquat ^® 734, United States is marketed by Gaf Co. and the INCI - name Polyquaternium-1 1,

quaternized polyvinyl alcohol,

and the polymers known under the names Polyquaternium-2, Polyquaternium-17, Polyquaternium-18 and Polyquaternium-27 with quaternary nitrogen atoms in the polymer main chain,

Vinylpyrrolidone-vinylcaprolactam-acrylate terpolymers, such as those offered with acrylic acid esters and acrylamides as the third monomer building commercially, for example, under the name Aquaflex ^® SF 40.

Suitable amphoteric polymers of synthetic origin are those in which a cationic group is derived from at least one of the following monomers:

(i) monomers having quaternary ammonium groups of the general formula (monol),

R is -CH = CR ² -CO-Z- (C n H ₂ n) -N ^<+) R ² R ³ R ⁴ A <> (monol)

in which R and R ² independently of one another represent hydrogen or a methyl group and R ³ , R ⁴ and R ⁵ independently of one another represent alkyl groups having 1 to 4 carbon atoms, Z denotes an NH group or an oxygen atom, n denotes an integer of 2 to 5 and A ^{() is} the anion of an organic or inorganic acid,

Monomers having quaternary ammonium groups of the general formula (Mono 2),

wherein R ⁶ and R ⁷ independently of one another represent a (C 1 to C 4) -alkyl group, in particular a methyl group and

A ^"is the anion of an organic or inorganic acid,

(iii) monomeric carboxylic acids of the general formula (mono 3), R ⁸ -CH = CR ⁹ -COOH (mono 3)

in which R ⁸ and R ^{9 are} independently hydrogen or methyl groups.

Particularly preferred are those polymers in which monomers of type (i) are used in which R ³ , R ⁴ and R ^{5 are} methyl groups, Z is an NH group and A ^{() is} a halide, methoxysulfate or ethoxysulfate ion ; Acrylamidopropyltrimethylammonium chloride is a particularly preferred monomer (i). As the monomer (ii) for the polymers mentioned, acrylic acid is preferably used.

Particularly preferred amphoteric polymers are copolymers of at least one monomer (monol) or (mono 2) with the monomer (mono 3), in particular copolymers of the monomers (mono 2) and (mono 3). Very particularly preferably used amphoteric polymers are copolymers of diallyldimethylammonium chloride and acrylic acid. These copolymers are sold under the INCI name Polyquaternium-22, among others, with the trade name Merquat ^® 280 (Nalco).

In addition, the amphoteric polymers in addition to a monomer (Monol) or (Mono2) and a monomer (Mono3) additionally a monomer (Mono4)

(iv) monomeric carboxylic acid amides of the general formula (mono 4),

in which R ⁰ and R independently of one another are hydrogen or methyl groups and R ^{2 is} a hydrogen atom or a (C 1 to C 8) -alkyl group.

Very particularly preferred amphoteric polymers based on a comonomer (Mono4) are terpolymers of diallyldimethylammonium chloride, acrylamide and acrylic acid. These copolymers are marketed ^® under the INCI name Polyquaternium-39, among others, with the trade name Merquat Plus 3330 (Nalco).

The amphoteric polymers of synthetic origin can generally be used both directly and in salt form obtained by neutralization of the polymers, for example with an alkali metal hydroxide.

Particularly preferred hair treatment agents include a polyalkyl siloxane, polyaryl siloxane, polyalkylaryl siloxane, silicone gum, silicone gum, organofunctional group-modified polyorganosiloxane or mixtures thereof.

Very particularly preferred hair treatment compositions are characterized in that (a) the polyalkylsiloxanes are selected from:

- trimethylsilyl endblocked polydimethylsiloxanes;

- Dimethylsilanol-terminated polydimethylsiloxanes;

- polyalkyl (Ci-2o) siloxanes;

(b) the polyaryl siloxanes are selected from:

- Polydimethylmethylphenylsiloxanen, polydimethyldiphenylsiloxanes which are straight-chain and / or branched and at 25 ° C have a viscosity in the range of 1 10 ^{~ 5} to 5 10 ² m ² / s;

(c) said silicone gums are selected from polydiorganosiloxanes having number average molecular weights in the range 200,000 to 1,000,000 and used as such or in admixture with a solvent;

(d) the resins are selected from the group consisting of R3S1O1 / 2, R2S1O2 / 2, RS1O3 / 2 and S1O4 / 2 units, wherein the group R is a hydrocarbon group of 1 to 16 carbon atoms or a phenyl group;

(e) the organomodified silicones are selected from silicones structurally bearing one or more organofunctional groups bonded through a hydrocarbon group.

Particularly preferred agents comprise the polyorganosiloxane (s) preferably in amounts of from 0.1 to 10% by weight, preferably from 0.25 to 7% by weight and in particular from 0.5 to 5% by weight, in each case based on the total mean.

Particularly preferred agents are characterized in that they contain at least one polyorganosiloxane of the formula Si-I

(CH ₃ ) ₃ Si - [0-Si (CH ₃ ) 2] x -O-Si (CH ₃ ) 3 (Si-I),

in which x is a number from 0 to 100, preferably from 0 to 50, more preferably from 0 to 20 and in particular 0 to 10.

These polyorganosiloxanes are referred to according to the INCI nomenclature as DIMETHICONE.

Of course, mixtures of the polyorganosiloxanes may be included in the hair treatment compositions.

Preferred polyorganosiloxanes which can be used have viscosities of from 0.2 to 2 mmV at 20 ° C., with polyorganosiloxanes with viscosities of from 0.5 to 1 mm ² s ^{-1 being} particularly preferred.

Preferred hair treatment agents are characterized in that the polyorganosiloxanes used singly or in admixture are selected from the following structures

polydimethylsiloxane Polydimethylsiloxane / methylvinylsiloxanes,

Polydimethylsiloxane / diphenylsiloxane,

Polydimethylsiloxane / phenylmethylsiloxane,

Polydimethylsiloxane / diphenylsiloxane / methylvinylsiloxane and the following mixtures: mixtures formed from a chain-end hydroxylated polydimethylsiloxane and a cyclic polydimethylsiloxane,

Mixtures formed from a polydimethylsiloxane gum and a cyclic silicone, and

Mixtures of polydimethylsiloxanes of different viscosities.

Particularly preferred agents contain one or more organomodified polyorganosiloxanes, since the performance properties of the polyorganosiloxanes can be adapted by the modification of the application even more detailed. Preferred hair treatment agents are characterized in that the organo-modified silicones are selected from the polyorganosiloxanes containing

a) polyethyleneoxy and / or polypropyleneoxy groups,

b) substituted or unsubstituted aminated groups,

c) thiol groups,

d) alkoxylated groups,

e) hydroxyalkyl groups,

f) acyloxyalkyl groups,

g) carboxyalkyl groups,

h) 2-hydroxyalkylsulfonate groups,

i) 2-hydroxyalkyl thiosulfonate groups,

j) hydroxyacylamino groups.

Particularly preferred agents contain one or more amino-functional polyorganosiloxanes. Such polyorganosiloxanes may be exemplified by the formula

M (RaQbSiO (4-a-b) / 2) x (RcSiO (4-c) / 2) y M

wherein R in the above formula is a hydrocarbon or a hydrocarbon radical having 1 to about 6 carbon atoms, Q is a polar radical of the general formula -R HZ, wherein R is a divalent linking group attached to hydrogen and the radical Z. Z is an organic, amino-functional radical containing at least one amino-functional group; "a" assumes values in the range of about 0 to about 2, "b" assumes values in the range of about 1 to about 3, "a" + "b" is less than or equal to 3, and "c" is a number in the range from about 1 to about 3, and x is a number ranging from 1 to about 2,000, preferably from about 3 to about 50, and most preferably from about 3 to about 25, and y is a number ranging from about 20 to about 10,000 . preferably from about 125 to about 10,000, and most preferably from about 150 to about 1,000, and M is a suitable silicone end group as known in the art, preferably trimethylsiloxy. Non-limiting examples of the groups represented by R include alkyl groups such as methyl, ethyl, propyl, isopropyl, isopropyl, butyl, isobutyl, amyl, isoamyl, hexyl, isohexyl and the like; Alkenyl radicals such as vinyl, halovinyl, alkylvinyl, allyl, haloallyl, alkylallyl; Cycloalkyl radicals such as cyclobutyl, cyclopentyl, cyclohexyl and the like; Phenyl radicals, benzyl radicals, halohydrocarbon radicals such as 3-chloropropyl, 4-bromobutyl, 3,3,3-trifluoropropyl, chlorocyclohexyl, bromophenyl, chlorophenyl and the like, and sulfur-containing radicals such as mercaptoethyl, mercaptopropyl, mercaptohexyl, mercaptophenyl and the like; preferably R is an alkyl radical containing from 1 to about 6 carbon atoms, and most preferably R is methyl. Examples of R include methylene, ethylene, propylene, hexamethylene, decamethylene, - CH ₂ CH (CH ₃ ) CH ₂ -, phenylene, naphthylene, -CH ₂ CH ₂ SCH ₂ CH ₂ -, -CH ₂ CH ₂ OCH ₂ -, -OCH ₂ CH ₂ -, - OCH ₂ CH ₂ CH ₂ -, -CH ₂ CH ( CH ₃ ) C (O) ₂ -, - (CH ₂ ) 3CC (O) ₂ CH ₂ -, -Cel-UCel-U-, -C 6 H 4 CH ₂ C 6 H 4 -; and - (CH 2) 3 C (O) SCH ₂ CH ₂ -.

Z is an organic, amino-functional radical containing at least one functional amino group. A possible formula for Z is NH (CH 2) z NH 2, wherein z is 1 or more. Another possible formula for Z is -NH (CH 2) z (CH 2) zzNH wherein both z and zz are independently 1 or more, this structure including diamino ring structures such as piperazinyl. Z is most preferably a -NHCH ₂ CH 2NH ₂ radical. Another possible formula for Z is -N (CH ₂ ) z (CH ₂ ) zzNX ₂ or -NX ₂ , wherein each X of X _{2 is} independently selected from the group consisting of hydrogen and alkyl groups of 1 to 12 carbon atoms, and zz is 0.

Q is most preferably a polar amine-functional radical of the formula -CH 2 CH 2 CH 2 NHCH 2 CH 2 NH 2. In the formulas, "a" assumes values in the range of about 0 to about 2, "b" assumes values in the range of about 2 to about 3, "a "+" b "is less than or equal to 3, and" c "is a number in the range of about 1 to about 3. the molar ratio of R _a Q b SiO _(4-a-b) / 2 units to R _c SiO (4- _C ) / 2 units range from about 1: 2 to 1:65, preferably from about 1: 5 to about 1:65, and most preferably from about 1:15 to about 1:20 One or more polyorganosiloxanes of the above formula may be used, then the various variable substituents in the above formula may be different for the various polyorganosiloxane components present in the polyorganosiloxane mixture.

Preferred agents are characterized in that they contain an amino-functional silicone of the formula (Si-II)

R'aG3-a-Si (OSiG 2) n (OSiG bR'2- b) m-0-SiG _3-a-R'a (Si-II),

contain, in which means:

- G is-H, a phenyl group, -OH, -O-CH3, _-CH3, -O-CH2CH3, -CH2CH3, -O- CH2CH3 CH _2, -CH 2 CH ₂ CH 3, -0-CH (CH ₃₎ ₂ , -CH (CH ₃ ) ₂ , -O-CH ₂ CH ₂ CH ₂ CH ₃ , - CH ₂ CH ₂ CH ₂ CH _3, -O-CH ₂ CH (CH ₃ ) 2, -CH ₂ CH (CH ₃ ) 2, -O-CH (CH ₃ ) CH ₂ CH ₃ , - CH (CH ₃ ) CH ₂ CH ₃ , -O -C (CH ₃ ) ₃ , -C (CH ₃ ) ₃ ;

a is a number between 0 and 3, in particular 0;

b is a number between 0 and 1, in particular 1,

m and n are numbers whose sum (m + n) is between 1 and 2000, preferably between 50 and 150, where n is preferably values from 0 to 1999 and in particular from 49 to 149 and m preferably values from 1 to 2000, in particular from 1 to 10,

- R ^' is a monovalent radical selected from

o -QN (R ") - CH ₂ -CH ₂ -N (R") ₂

o -QN (R ") ₂

o -QN ⁺ (R ") ₃ A ^"

o -QN ⁺ H (R ") ₂ A- o -QN ⁺ H ₂ (R") A ^"

o -QN (R ") - CH ₂ -CH ₂ -N ⁺ R" H ₂ A-,

wherein each Q is a chemical bond, -CH ₂ -, -CH ₂ -CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -C (CH ₃ ) ₂ -, -CH ₂ CH ₂ CH ₂ CH ₂ -, -CH ₂ C (CH ₃ ) ₂ -, -CH (CH ₃ ) CH ₂ CH ₂ -,

R "is identical or different radicals from the group -H, -phenyl, -benzyl, -CH ₂ - CH (CH ₃ ) Ph, the C ₂₀ -alkyl radicals, preferably -CH ₃ , -CH ₂ CH ₃ , -CH ₂ CH ₂ CH ₃ , - CH (CH ₃ ) ₂ , -CH ₂ CH ₂ CH ₂ H ₃ , -CH ₂ CH (CH ₃ ) ₂ , -CH (CH ₃ ) CH ₂ CH ₃ , -C (CH ₃ ) ₃ , and A represents an anion, which is preferably selected from chloride, bromide, iodide or methosulfate.

Particularly preferred agents are characterized in that they contain at least one amino-functional silicone of the formula (Si-Ila)

(CH ₃ ) ₃ Si [0-Si (CH ₃ ) ₂ ] _n [OSi (CH ₃ )] m -OSi (CH ₃ ) ₃ (Si-Ila),

I

CH ₂ CH (CH ₃ ) CH ₂ NH (CH ₂ ) ₂ NH ₂

in which m and n are numbers whose sum (m + n) is between 1 and 2000, preferably between 50 and 150, where n preferably values of 0 to 1999 and in particular of 49 to 149 and m preferably values of 1 to 2000 , in particular from 1 to 10 assumes.

These polyorganosiloxanes are referred to according to the INCI declaration as Trimethylsilylamodimethicone.

Also particularly preferred are agents which are an amino-functional polyorganosiloxane of the formula (IIb)

R- [Si (CH ₃₎ ₂ -0] m [Si (R) -0] m- [Si (CH ₃₎ _2] _n2 -R (Si-IIb),

I

in which R is -OH, -O-Ch or a -Ch group and m, n1 and n2 are numbers whose sum (m + n1 + n2) is between 1 and 2,000, preferably between 50 and 150, wherein the sum (n1 + n2) preferably assumes values from 0 to 1999 and in particular from 49 to 149 and m preferably values from 1 to 2000, in particular from 1 to 10.

These silicones are referred to as AMODIMETHICONE according to the INCI declaration.

Regardless of which amino-functional silicones are employed, preferred are agents containing an amino-functional silicone whose amine number is above 0.25 meq / g, preferably above 0.3 meq / g and especially above 0.4 meq / g. The amine number stands for the milliequivalents of amine per gram of the amino-functional silicone. It can be determined by titration and also expressed in mg KOH / g.

Preferred agents contain - based on their weight - 0.01 to 10 wt.%, Preferably 0.1 to 8 wt.%, Particularly preferably 0.25 to 7.5 wt.% And in particular 0.5 to 5 wt.% amino-functional silicone (s).

The cyclic dimethicones designated INCY as CYCLOMETHICONE are also preferred. Here, agents according to the invention are preferred which contain at least one silicone of the formula Si III

rO-SiiCHsMx- (Si-III) in which x is a number from 3 to 200, preferably from 3 to 10, more preferably from 30 to 7 and especially 3, 4, 5 or 6, stands.

Cyclic silicones of 3 to 7, preferably 4 to 5, Si atoms are, for example, octamethylcyclotetrasiloxane, available as "Volatile Silicone 7207" (Union Carbide) or "Silbione 70045 V 2" (Rhodia Chemie), decamethylcyclopentasiloxane, available as "Volatile Silicone 7158". (Union Carbide) and "Silbione 70045 V 5" (Rhodia Chimie) and mixtures thereof.

Cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type are, for example, "Volatile Silicone FZ 3109" (Union Carbide), having the structure:

It is also possible to use mixtures of cyclic silicones with organosilicone compounds such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilyl pentaerythritol (50/50) and the mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis (2,2,2 ', 2', 3,3 '-hexatrimethylsilyloxy) neopentane.

The silicones described above have a backbone composed of -Si-O-Si units. Of course, these Si-O-Si units may also be interrupted by carbon chains. Appropriate molecules are accessible by chain extension reactions and are preferably used in the form of silicone-in-water emulsions.

Also preferred agents include a silicone of formula Si-IV

R 3 Si [0-SiR 2] x- (CH ₂ ) n - [0-SiR ₂ ] _y -O-SiR 3 (Si-IV),

in the R for identical or different radicals from the group -H, -phenyl, -benzyl, -CH ₂ -CH (CH ₃ ) Ph, the Ci-20-alkyl radicals, preferably -CH ₃ , -CH ₂ CH ₃ , -CH ₂ CH ₂ CH ₃ , -CH ( CH ₃₎ _2, -CH2CH2CH2H3, - CH 2 CH (CH ₃₎ 2, -CH (CH ₃₎ CH 2 CH _3, -C (CH ₃₎ 3, x or y for a number from 0 to 200, preferably from 0 to 10, more preferably from 0 to 7 and especially 0, 1, 2, 3, 4, 5 or 6, and n is a number from 0 to 10, preferably from 1 to 8 and especially for 2, 3, 4 , 5, 6 stands.

A likewise particularly preferably usable polyorganosiloxane has the general formula

(A)

has,

wherein

Xi and X2 are independently OH, OR \ R ² , O-PDMS or O-f siloxane, X 3 denotes hydrogen or a monovalent hydrocarbon radical having 1 to 8 carbon atoms per radical, PDMS or f siloxane,

X4 is a radical of the formula

-CH ₂ NR ⁵

-CH ₂ NHR ⁴ -CH ₂ NR 2 or

is and

a is a number from 1 to 100,

in which

R is an alkyl radical having 1 to 8 carbon atoms,

R ^{2 is} a monovalent, optionally substituted with the elements N, P, S, O, Si and halogen, saturated or unsaturated hydrocarbon radical having 1 to 200 carbon atoms per radical,

PDMS for

stands,

siloxane for

stands,

R ³ are each independently a monovalent, optionally with the elements N, P, S,

O, Si and halogen substituted, saturated or unsaturated hydrocarbon radical having 1 to 200

Carbon atoms per remainder means

A is a radical of the formula R ⁶ - [NR ⁷ -R ⁸ -] fNR ⁷ 2,

in which

R ⁶ denotes a divalent linear or branched hydrocarbon radical having 3 to 18 carbon atoms,

R ^{7 represents} a hydrogen atom, an alkyl radical having 1 to 8 carbon atoms or an acyl radical,

R ^{8 is} a divalent hydrocarbon radical having 1 to 6 carbon atoms,

b is a number from 1 to 2000,

c is 0 or a number from 1 to 2000

d is a number from 1 to 1000, e is 0 or a number from 1 to 5,

f is 0, 1, 2, 3 or 4,

Z is hydrogen, an alkyl radical having 1 to 8 carbon atoms or

means

R ⁴ denotes a monovalent hydrocarbon radical having 1 to 18 carbon atoms and optionally containing N and / or O atoms, and

R ^{5 is} a divalent optionally N and / or O atoms containing hydrocarbon radical having 3 to 12 carbon atoms.

A particularly preferred polyorganosiloxane of the formula (A) is known, for example, under the INCI name amodimethicone / morpholinomethyl silsesquioxane copolymer and / or under the CAS number 1293390-78-9. Commercially available this polyorganosiloxane under the name Belsil® ADM 8301 E (ex Wacker). The raw material is a microemulsion and has the following components: amodimethicone / morpholinomethyl silsesquioxane copolymer, trideceth-5, glycerol, phenoxyethanol and water.

Most particularly preferred hair treatment agents include trimethylsilyl-terminated polyalkylsiloxanes, dimethylsilanol-terminated polyalkylsiloxanes, polyalkylarylsiloxanes, mixtures of two polydimethylsiloxanes (PDMS) formed from a gum and an oil of different viscosities, mixtures of organosiloxanes and cyclic silicones or organopolysiloxane resins.

Trade names preferred as conditioning agents used silicones are, for example

Decamethyltetrasiloxane "SH 200" (Toray Silicone)

Silbione® oils of the 47 and 70 047 series

Mirasil® oils (Rhodia Chimie) like 70 047 V 500 000

200 series oils (Dow Corning), such as DC200 with a viscosity of 60,000 cSt (mm ² / s) Viscasil® Oils (Momentive Performance Materials Inc.)

SF Series (SF 96, SF 18, SF 1023, SF 1 154, SF 1250 and SF 1265) oils from Momentive Performance Materials Inc.

Dimethiconols such as oils of the 48 series (Rhodia Chimie)

Abil® Wax 9800 and 9801 (Evonik)

Silbione Oils of the 70 641 Series (Rhodia Chimie)

Oils of Rhodorsil 70 633 and 763 series (Rhodia Chimie)

Dow Corning 556 Cosmetic Grade Fluid (Dow Corning) PK Series (Momentive Performance Materials) silicones, such as PN and PH series Baysilone® PK20 silicones (Momentive Performance Materials), such as Oil PN1000 and Oil PH 1000

Q2 1401 (Dow Corning)

SF 1214 Silicone Fluid (Momentive Performance Materials)

SF 1236 (Momentive Performance Materials)

"Dow Corning 593" or "Silicone Fluid SS 4230 and SS 4267" (Momentive Performance Materials)

X22-4914, X21-5034 and X21-5037 (Shin-Etsu)

DC 1248 and Q2 5200 (Dow Corning)

GP 4 Silicone Fluid and GP 7100 (Genesee Polymers Corporation)

Q2 8220 and Dow Corning 929 or 939 (Dow Corning)

GP 72 A and GP 71 (Genesee Polymers Corporation)

Silicone Copolymer F-755 (SWS Silicones) and Abil Wax 2428, 2434 and 2440 (Evonik)

X-22-3701E (Shin-Etsu)

Abil S201 and Abil S255 (Evonik)

Q2-8413 (Dow Corning).

Although nonionic polymers of synthetic origin, such as vinylpyrrolidinone / vinyl acrylate copolymers, polyvinylpyrrolidinone, vinylpyrrolidone / vinyl acetate / vinyl propionate copolymers such as "Luviskol® VAP 343", vinylpyrrolidone / (meth) acrylic acid ester copolymers or polyethylene glycols are less preferred, but may in principle be used as a hair care component synthetic origin in hair treatment products.

Very particular preference is given to the hair care component of synthetic origin selected from the group comprising a compound known by the INCI name dimethicone, a compound known by the INCI name amodimethicone, a compound known by the INCI name Polyquaternium-69, an INCI Designation Polyquaternium-37 known compound and mixtures thereof. Even more preferably, a hair treatment composition contains a compound known by the INCI name dimethicone and / or a compound known by the INCI name amodimethicone. Most preferably, a hair treatment composition contains a compound known by the INCI name Dimethicone as a hair care component of synthetic origin.

The total amount of hair care component (s) of synthetic origin is - based on the total weight of a hair treatment agent - a total of 0.001 to 5.0 wt .-%, more preferably 0.01 to 3.0 wt .-% and more preferably 0.05 to 1, 0% by weight. The hair treatment composition further contains an aqueous carrier. An aqueous carrier contains at least 50% by weight, preferably at least 60% by weight of water.

Preferred hair treatment agents are characterized as follows:

From 0.0001 to 1.0% by weight of methionylmethionine,

0.01 to 40% by weight of a surfactant mixture of anionic and amphoteric / zwitterionic surfactants,

From 0.001 to 3% by weight of a hair care component of synthetic origin and

an aqueous carrier.

More preferred hair treatment agents are further characterized as follows:

0.05 to 0.3% by weight of methionylmethionine,

0.1 to 30.0% by weight of a surfactant mixture of anionic and amphoteric / zwitterionic surfactants,

0.05 to 1% by weight of a hair care component of synthetic origin and

an aqueous carrier.

More preferred hair treatment agents are characterized as follows:

0.05 to 0.3% by weight of methionylmethionine,

From 0.1 to 30.0% by weight of a surfactant mixture of at least one anionic surfactant containing an alkyl ether sulfate and an amphoteric / zwitterionic surfactant,

0.05 to 1% by weight of a hair care component of synthetic origin and

an aqueous carrier.

Very particularly preferred hair treatment compositions are characterized as follows:

0.05 to 0.3% by weight of methionylmethionine,

From 0.1 to 30.0% by weight of a surfactant mixture of at least one anionic surfactant containing an alkyl ether sulfate and an alkyl sulfate, and at least one amphoteric / zwitterionic surfactant,

0.05 to 1% by weight of a hair care component of synthetic origin and

an aqueous carrier.

Even more preferred hair treatment agents are characterized as follows:

0.05 to 0.3% by weight of methionylmethionine,

From 0.1 to 30.0% by weight of a surfactant mixture comprising at least one anionic surfactant containing an alkyl ether sulfate and an alkyl sulfate and at least one amphoteric / zwitterionic surfactant containing a compound known by the INCI name cocamidopropyl betaine and / or or a compound known by the INCI name Disodium Cocoamphodiacetate,

0.05 to 1% by weight of a hair care component of synthetic origin and

an aqueous carrier.

Still further preferred hair treatment agents are characterized as follows:

0.05 to 0.3% by weight of methionylmethionine, From 0.1 to 30.0% by weight of a surfactant mixture comprising at least one anionic surfactant containing an alkyl ether sulfate and an alkyl sulfate and at least one amphoteric / zwitterionic surfactant containing a compound known by the INCI name cocamidopropyl betaine and / or or a compound known by the INCI name Disodium Cocoamphodiacetate,

From 0.05 to 1% by weight of a hair care component of synthetic origin selected from the group comprising a compound known by the INCI name Dimethicone, a compound known by the INCI name Amodimethicone, a compound known by the INCI name Polyquaternium-69 , a compound known by the INCI name Polyquaternium-37 and mixtures thereof, and

an aqueous carrier.

Highly preferred hair treatment agents are characterized as follows:

0.05 to 0.3% by weight of methionylmethionine,

From 0.05 to 1% by weight of a hair care component of synthetic origin selected from the group comprising a compound known by the INCI name Dimethicone, and

an aqueous carrier.

Hair treated with the hair treatment compositions described herein, especially purified, exhibited reduced hair damage in the form of increased melting temperature and increased tensile strength. In addition, this hair had an increased contact angle of water droplets on the hair. The latter shows that a hydrophobing of the hair surface was achieved.

In the following, further ingredients of the hair treatment compositions are described, which may be included in the compositions in addition to the above-described mandatory ingredients.

Other suitable ingredients include nonionic surfactants, nonionic polymers, hair care components of natural origin, anionic polymers, fatty substances, waxes, protein hydrolysates, amino acids, oligopetids, vitamins, provitamins, vitamin precursors, betaines, biochinones, purines, taurine derivatives, plant extracts, silicones , Ester oils, UV screening filters, structuring agents, thickeners, electrolytes, pH adjusting agents, swelling agents, Dyes, antidandruff agents, chelating agents, opacifiers, pearlescers, pigments, stabilizers, propellants, antioxidants, perfume oils and / or preservatives.

Particularly preferred further ingredients are nonionic surfactants. Suitable nonionic surfactants may in the hair treatment compositions - based on the total weight of an agent - preferably in an amount of 0.05 to 10 wt .-%, more preferably from 0.1 to 7.5 wt .-%, particularly preferably from 0, 2 to 5 wt .-% and in particular in an amount of 0.25 to 4% by weight are used. The amount of nonionic surfactants does not count to the amount of surfactant mixture b), but the nonionic surfactants are included in the hair treatment agents in addition to the surfactant mixture of anionic and amphoteric / zwitterionic surfactants.

For example, preferred nonionic surfactants include

Cs-Cso fatty acid mono- and diesters of addition products of 1 to 30 moles of ethylene oxide

glycerin,

Amine oxides,

Addition products of 2 to 50 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear and branched fatty alcohols having 8 to 30 carbon atoms, to fatty acids having 8 to 30 carbon atoms and to alkylphenols having 8 to 15 carbon atoms in the alkyl group .

Sorbitan fatty acid esters and adducts of ethylene oxide with sorbitan fatty acid esters such as polysorbates,

Sugar fatty acid esters and addition products of ethylene oxide with sugar fatty acid esters, addition products of ethylene oxide onto fatty acid alkanolamides and fatty amines and / or alkyl oligoglucosides.

In the case where a nonionic surfactant is used in the hair treatment compositions, alkyl oligoglucosides, especially alkyl oligoglucosides based on hydrogenated C 12/14 coconut oil having a degree of oligomerization (DP) of 1 to 3, as described, for example, under the INCI name " Coco-glucosides "are commercially available.

The hair treatment compositions preferably have a pH of 3.5 to 5.5. This can be adjusted with suitable pH adjusting agents, in particular organic acids such as lactic acid and / or citric acid.

Another subject of the invention is a hair treatment process in which a hair treatment composition according to claim 1 is applied to the hair and is rinsed by the hair after a contact time. The exposure time is preferably a few seconds to 100 minutes, more preferably 1 to 50 minutes and most preferably 1 to 5 minutes.

The following examples are intended to illustrate the subject matter of the present invention without, however, limiting it.

Examples

All amounts are, unless otherwise stated, parts by weight of active substance. The following formulations were provided using known preparation methods.

Hair shampoo 1:

Wt .-%

Sodium Laureth Sulfate 10

Cocoamidopropyl Betaine 4.0

Ammonium Lauryl Sulfate 4.0

Dimethicone (60,000 est) 0.5

DL-methionyl-DL-methionine 0.8

PEG-7 Glyceryl Cocoate 1, 0

Nicotinic acid amide 0.3

Citric acid 0.5

Panthenol 0.5

Laureth-2 1, 2

Sodium chloride 1, 3

Water, preservation and possibly perfume oils ad 100

Claims

claims:

1. hair treatment composition containing - based on the weight of the total composition - a) 0.0001 to 30 wt .-% methionylmethionine,

2. Hair treatment composition according to claim 1, characterized in that the surfactant mixture contains an alkyl ether sulfate and / or an alkyl sulfate as anionic surfactant.

3. Hair treatment composition according to one of claims 1 or 2, characterized in that the surfactant mixture contains at least one compound known by the INCI name cocamidopropyl betaine and / or at least one compound known by the INCI name Disodium Cocoamphodiacetate.

4. Hair treatment composition according to one of claims 1 to 3, characterized in that the methionylmethionine a mixture of L-methionyl-L-methionine, L-methionyl-D-methionine, D-methionyl-L-methionine and D-methionyl-D- is methionine.

5. Hair treatment composition according to one of claims 1 to 3, characterized in that the methionyl methionine is L-methionyl-L-methionine and / or D-methionyl-D-methionine.

6. Hair treatment composition according to one of claims 1 to 5, characterized in that the hair care component of synthetic origin is selected from the group comprising cationic polymers of synthetic origin, amphoteric polymers of synthetic origin, polyorganosiloxanes and mixtures thereof.

7. Hair treatment composition according to one of claims 1 to 6, characterized in that the hair care component of synthetic origin is a polyorganosiloxane selected from the group comprising polyalkyl siloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, silicone rubbers, silicone resins, organofunctional groups modified polyorganosiloxanes and mixtures thereof.

8. hair treatment composition according to one of claims 1 to 6, characterized in that the hair care component of synthetic origin contains a polyalkylsiloxane.

9. Hair treatment composition according to one of claims 1 to 6, characterized in that the hair care component of synthetic origin is a polydimethylsiloxane (INCI: Dimethicone).

10. Hair treatment composition according to one of claims 1 to 9, characterized in that it has a pH of 3.5 to 5.5.

1 1. Hair treatment composition according to one of claims 1 to 10, characterized in that in the surfactant mixture of anionic and amphoteric / zwitterionic surfactants, the ratio of anionic surfactant to amphoteric / zwitterionic surfactant from 6: 1 to 1: 1, preferably from 5: 1 to 1, 5: 1 and in particular from 4: 1 to 2: 1.

12. Use of methionylmethioin in a hair treatment composition comprising a surfactant mixture of anionic and amphoteric / zwitterionic surfactants and hair care component of synthetic origin for improving at least one of the properties

Tensile strength of keratinic fibers, especially human hair; Combability of keratinic fibers, in particular of human hair; Hydrophobing the surface of keratinic fibers, in particular human hair;

Strengthening the internal structure of keratinic fibers, especially human hair.

13. A method of hair treatment, in which a hair treatment composition according to any one of claims 1 to 1 1 applied to the hair and rinsed after a contact time of the hair.