An effective anti-dandruff hair care product.

Abstract

The present invention relates to hair care products containing 3-hydroxypropiloctotanoic acid ester (Propandiol Caprylate) and at least one anti-dandruff active ingredient other than (a).

Description

[0001] The present invention relates to hair treatment products comprising a special combination of anti-dandruff agents, the use of the products for cleaning hair and for the prophylaxis, reduction, elimination and relief of dandruff on hairy body surfaces.

[0002] Cleansing products for skin and hair, such as liquid soaps, shampoos, shower gels, bubble baths, shower and washing gels available commercially, must have good cleaning properties, be skin-friendly and not lead to excessive degreasing or dryness of skin and hair even with frequent use.

[0003] An important aspect of hair cleansing and care is combating dandruff, as the appearance of dandruff on the scalp or other hairy areas of the body is considered a sign of inadequate care. Furthermore, dandruff is usually accompanied by bothersome itching, which can trigger scratching and lead to injuries of the affected skin areas, which in turn can create a breeding ground for infections and pathogens.

[0004] The requirements for cosmetic dandruff control products are high, as they should not only guarantee cleansing, care and anti-dandruff effectiveness, but also work quickly - ideally from the first application - and sustainably.

[0005] Numerous hair cosmetic products that prevent or reduce dandruff are known from the literature. These typically come in the form of shampoos, lotions, or hair tonics. International patent application WO-A-2020 / 160741 discloses

[0006] Hair treatment preparation for combating dandruff comprising a fatty acid ester, in particular 3-hydroxypropylcaprylate, optionally in combination with piroctone olamine.

[0007] Anti-dandruff agents are known to be soluble and insoluble active ingredients in water or aqueous surfactant solutions. These must be deposited on treated, hairy body surfaces during a cleansing and / or care process in order for the anti-dandruff effect to occur.

[0008] Cationic polymers are typically used as so-called deposition aids. Particularly in combination with anionic surfactants, they enable good deposition of anti-dandruff agents that are insoluble in water or aqueous surfactant solutions, such as zinc salts.

[0009] However, acrylic acid-based polymers are often necessary to stabilize zinc salts in anti-dandruff shampoos. Consumers are increasingly prioritizing environmentally friendly and / or non-polluting ingredients (such as microplastics) when choosing cosmetic products, which is why efforts are being made to avoid the use of stabilizing polymers.

[0010] Anti-dandruff agents that are readily soluble in aqueous surfactant solutions, such as piroctone olamines, have the disadvantage that they are difficult to remove and / or only removed in small quantities from cosmetic products on the scalp, especially from cosmetic products that are rinsed off after application.

[0011] The object underlying the invention is to provide a cosmetic hair treatment product with anti-dandruff effect, the performance of which is increased.

[0012] In addition to increased anti-dandruff effectiveness, increased performance also includes gentle cleansing and / or care of the scalp and hair.

[0013] The problems underlying the invention are solved by the subject matter of claim 1.

[0014] The combination of at least two different anti-dandruff agents, comprising 3-hydroxypropyl octanoic acid esters (propanediol caprylate) and piroctone olamines, led to hair treatment products. with increased, accelerated and / or longer lasting anti-dandruff efficacy, where adjusting the desired viscosity requires a lower proportion or no additional thickening agents, with excellent foaming properties (in the case of products according to the invention that are formulated as hair cleansing agents), with improved care properties, in particular with regard to the feel, elasticity and smoothness of the hair.

[0015] A first object of the invention is a hair treatment product containing a) 3-Hydroxypropyloctanoic acid esters (propanediol caprylate) and b) at least one anti-dandruff active ingredient different from a) wherein the anti-dandruff active ingredients a) and b) are contained in a weight fraction of up to 0.5 wt% of the total weight of the hair treatment product and wherein the at least one anti-dandruff active ingredient b) contains piroctone olamine.

[0016] The first essential component of the hair treatment products according to the invention is 3-hydroxypropyl octanoic acid esters (INCI name: Propanediol Caprylate).

[0017] Propanediol caprylate is known as a highly effective anti-dandruff agent. It is available exclusively from natural sources, for example, through hydrolysis of palm kernel oil, subsequent fermentation and distillation of the hydrolysis products, and esterification of 1,3-propanediol with caprylic acid.

[0018] Propanediol caprylate is effective against Malassezia strains that cause and / or exacerbate dandruff. Furthermore, foam-stabilizing properties of propanediol caprylate have been described in common surfactant-containing products.

[0019] The combination of propanediol caprylate and at least one other anti-dandruff active ingredient containing piroctone olamine in cosmetic hair treatment products leads to a significant increase in the anti-dandruff efficacy of the products, regardless of whether water-soluble or insoluble anti-dandruff active ingredients are used in water or aqueous surfactant solutions.

[0020] Another advantage is that no or only very small amounts of free salts and / or non-polymeric thickening agents need to be added to the hair treatment products to achieve the desired viscosity.

[0021] Hair treatment products according to the invention, which were formulated as cleaning agents, also exhibit a high foam volume and improved creaminess and feel of the foam.

[0022] Surprisingly, these effects can be observed even with small amounts of propanediol caprylate.

[0023] Propanediol caprylate is commercially available, for example from the company Symrise under the trade name Crinipan ®< PMC green.

[0024] 3-Hydroxypropyloctanoic acid ester (INCI name: Propanediol Caprylate) is preferably used in the hair treatment products according to the invention in an amount of 0.1 to 0.4 wt.%, wherein the quantities refer to the total weight of the hair treatment products.

[0025] As an anti-dandruff agent(s) b), the hair treatment products according to the invention preferably contain one or more compounds from the following groups: b1) Zinc salts, b2) Piroctone Olamine, b3) Selenium sulfide, b4) Salicylic acid, b5) Climbazole.

[0026] The anti-dandruff agents b1) to b5) can be used individually or as a mixture in the hair treatment products according to the invention in a total amount of 0.1 to 0.4 wt.%, wherein the quantities refer to the total weight of the hair treatment products.

[0027] It is advantageous if propanediol caprylate and the anti-dandruff agent(s) b) are used in a weight ratio of 1 : 3 to 3 : 1.

[0028] In a preferred embodiment, the hair treatment products according to the invention contain 3-hydroxypropyl octanoic acid esters and the at least one anti-dandruff active ingredient b) in a weight ratio of 1 : 3 to 3 : 1.

[0029] Suitable zinc salts b1) within the meaning of the present invention preferably include zinc oxide, zinc carbonate and / or zinc pyrithione.

[0030] Zinc pyrithione is particularly favored.

[0031] Among the anti-dandruff agents b) that are insoluble in water or aqueous surfactant solutions, zinc salts b1), in particular zinc pyrithione, are especially preferred.

[0032] A particularly suitable anti-dandruff agent soluble in water or aqueous surfactant solutions b) is piroctone olamine b2).

[0033] The hair treatment products according to the invention contain b) piroctone olamine as an anti-dandruff active ingredient.

[0034] In a further preferred embodiment, the hair treatment products according to the invention contain as an anti-dandruff agent b) a mixture of piroctone olamines and at least one zinc salt selected from the group consisting of zinc pyrithione, zinc oxide and / or zinc carbonate.

[0035] Another preferred embodiment is characterized in that the hair treatment products according to the invention contain 3-hydroxypropyl octanoic acid esters and piroctone olamines in a weight ratio of 1 : 3 to 3 : 1.

[0036] Another preferred embodiment is characterized in that the hair treatment products according to the invention contain 3-hydroxypropyl octanoic acid esters and zinc pyrithione in a weight ratio of 1 : 3 to 3 : 1.

[0037] The daily application of some commercially available anti-dandruff preparations (for example, those containing exclusively high amounts of zinc pyrithione) can sometimes lead to dryness and, in the worst case, to an increase in dandruff, especially in the case of sensitive scalps.

[0038] The hair treatment products according to the invention do not have this disadvantage. They can be used regularly and reduce, eliminate, alleviate and / or prevent dandruff. The effect also occurs with small amounts of anti-dandruff agents a) and b), for example in hair treatment products that comprise - based on their weight - 0.05 - 0.4 wt% of components a) and b).

[0039] The anti-dandruff agents a) and b) are present in the hair treatment products according to the invention in a weight fraction of up to 0.5 wt.%.

[0040] The hair treatment products according to the invention contain the active ingredients a) and b) preferably in a cosmetic carrier. Within the scope of the invention, this is preferably understood to be an aqueous or an aqueous-alcoholic carrier.

[0041] The cosmetic carrier preferably contains at least 70 wt.%, particularly preferably at least 72.5 wt.% and especially preferably at least 75 wt.% water.

[0042] Furthermore, the cosmetic carrier can contain 0.01 to 10 wt.%, preferably 0.05 to 9 wt.% and in particular 0.10 to 6 wt.% of at least one alcohol.

[0043] Suitable alcohols include, for example, ethanol, ethyl diglycol, 1-propanol, 2-propanol, isopropanol, 1,2-propylene glycol, glycerin, diglycerin, triglycerin, 1-butanol, 2-butanol, 1,2-butanediol, 1,3-butanediol, 1-pentanol, 2-pentanol, 1,2-pentanediol, 1,5-pentanediol, 1, hexanol, 2-hexanol, 1,2-hexanediol, 1,6-hexanediol, polyethylene glycols, sorbitol, sorbitan, benzyl alcohol, phenoxyethanol, or mixtures of these alcohols.

[0044] The hair treatment products according to the invention can be formulated as rinse-off hair cleansing products or as leave-on hair conditioning products.

[0045] Rinse-off hair cleansing agents according to the invention contain, in addition to the anti-dandruff agents a) and b), preferably at least one washing-active surfactant selected from anionic, amphoteric, zwitterionic and / or non-ionic surfactants.

[0046] The mild and good foaming properties of rinse-off hair cleansing agents according to the invention can be controlled by the careful selection of the surfactant quantities and / or surfactant types.

[0047] Rinse-off hair cleansing agents according to the invention preferably contain at least one anionic surfactant, which is responsible for generating satisfactory amounts and properties of foam. A mixture of at least one anionic surfactant and at least one mild co-surfactant is particularly preferred for achieving an optimal balance between mildness and foaming properties. The mild co-surfactant can preferably be selected from amphoteric and / or zwitterionic and / or nonionic surfactants.

[0048] In a preferred embodiment, the hair treatment products according to the invention contain at least one anionic, amphoteric, zwitterionic, non-ionic and / or cationic surfactant in a weight fraction of up to 15 wt.% of the total weight of the hair treatment product.

[0049] In a further preferred embodiment, the hair treatment products according to the invention are formulated as rinse-off hair cleansing products and contain at least one anionic surfactant in a weight fraction of up to 12.5 wt.% of the total weight of the hair treatment product.

[0050] In a further preferred embodiment, hair treatment products according to the invention are formulated as rinse-off hair cleansing products and contain (i) at least one anionic surfactant in a weight fraction of 1 to 10% by weight of the total weight of the hair treatment product and (ii) at least one amphoteric and / or zwitterionic surfactant in a weight fraction of 0.1 to 5% by weight of the total weight of the hair treatment product and / or (iii) at least one non-ionic surfactant in a weight fraction of 0.1 to 5% by weight of the total weight of the hair treatment product.

[0051] In a further preferred embodiment, hair treatment products according to the invention are formulated as leave-on or rinse-off hair care products and contain at least one cationic surfactant in a weight fraction of up to 5 wt.% of the total weight of the hair treatment product.

[0052] Suitable anionic surfactants within the meaning of the present invention are: Linear and branched fatty acids with 8 to 30 carbon atoms (soaps), ether carboxylic acids of the formula RO-(CH₂-CH₂O)ₓ-CH₂-COOH, in which R is a linear or branched, saturated or unsaturated alkyl group with 8 to 30 carbon atoms and x = 0 or 1 to 16, acyl sarcosides with 8 to 24 carbon atoms in the acyl group (sarcosinate surfactants), acyl taurides with 8 to 24 carbon atoms in the acyl group (taurate surfactants), acylisethionates with 8 to 24 carbon atoms in the acyl group (isethionate surfactants), sulfosuccinic acid mono- and / or dialkyl esters with 8 to 24 carbon atoms in the alkyl group, and sulfosuccinic acid monoalkyl polyoxyethyl esters with 8 to 24 carbon atoms in the alkyl group and 1 to 6 oxyethyl groups (sulfosuccinate surfactants), alpha-olefin sulfonates with 8 to 24 carbon atoms (alpha-olefin sulfonate surfactants), alkyl sulfates and / or alkyl ether sulfate salts of the formula R-(OCH2-CH2)n-O-SO3X, in which R preferably represents a straight-chain or branched, saturated or unsaturated alkyl group with 8 to 30 carbon atoms,x is the number 0 or 1 to 12 and X is an alkali, alkaline earth, ammonium or alkanolamine ion, sulfonates of unsaturated fatty acids with 8 to 24 carbon atoms and 1 to 6 double bonds, esters of tartaric acid and citric acid with alcohols, which are addition products of about 2-15 molecules of ethylene oxide and / or propylene oxide to fatty alcohols with 8 to 22 carbon atoms, and / or alkyl and / or alkenyl ether phosphates of the formula , in the R 1 preferably for an aliphatic hydrocarbon residue with 8 to 30 carbon atoms, R 2 for hydrogen, a remainder (CH 2 CH 2 O) n R 1 or X, n for numbers from 0 to 10 and X for hydrogen, an alkali or alkaline earth metal or the group -NR 3 R 4 R 5 R 6 stands, with R 3 to R 6 independently of each other, representing a C 1 up to C 4 -Hydrocarbon residue.

[0053] Particularly preferred are alkyl sulfate and / or alkyl ether sulfate salts, (salts of) ether carboxylic acids, sarcosinates, isethionates, taurates, sulfosuccinates and / or alpha-olefin sulfonates, especially alkyl sulfate and / or alkyl ether sulfate salts.

[0054] Suitable amphoteric and / or zwitterionic surfactants within the meaning of the present invention are in particular mild surfactants with excellent foaming properties.

[0055] This preferably includes surface-active compounds selected from the group comprising alkyl betaines, alkylamidoalkyl betaines, alkylamphoacetates, alkylamphodiacetates, alkylamphopropionates, alkylamphodipropionates, alkylsultaines, alkylhydroxysultaines, alkylamine oxides, alkylamphoglycinates, alkyliminodiacetates, alkyliminodipropionates, alkylamphopropylsulfonates, alkylamphocarboxyglycinates and alkylamphocarboxypropionates.

[0056] Suitable alkyl betaines and / or alkylamidopropyl betaines preferably comprise C 4 -C 24 -, more preferably C 6 -C 18 -, particularly preferably C 8 -C 14 -alkyl chains, which may be linear or branched, with linear chains being preferred.Besonders bevorzugte Alkylbetaine oder Alkylamidopropylbetaine sind ausgewählt aus der Gruppe Lauryl Betaine, Coco-Betaine, Behenyl Betaine, Capryl / Capramidopropyl Betaine, Cetyl Betaine, Cocamidoethyl Betaine, Cocamidopropyl Betaine, Coco / Oleamidopropyl Betaine, Decyl Betaine, Dimer Dilinoleamidopropyl Dibetaine, Hydrogenated Tallow Betaine, Hydroxylauryl / Hydroxymyristyl Betaine, Isostearamidopropyl Betaine, Lauramidopropyl Betaine, Lauryl Betaine, Myristyl Betaine, Oleamidopropyl Betaine, Oleyl Betaine, Palmitamidopropyl Betaine, Ricinoleamidopropyl Betaine, Stearamidopropyl Betaine, Stearyl Betaine, Tallowamidopropyl Betaine, Tallow Betaine, Tallow Dihydroxyethyl Betaine, Undecylenamidopropyl Betaine, Sunfloweramidopropyl Betaine, Cetyl Betaine, Lauryl Betaine.

[0057] Ganz besonders bevorzugt ist Cocamidopropyl Betaine.

[0058] Besonders geeignete Alkylamphoacetate, Alkylamphodiacetate, Alkylamphopropionate oder Alkylamphodipropionate sind ausgewählt aus der Gruppe Cocobetainamido Amphopropionate, DEA-Cocoamphodipropionate, Disodium Caproamphodiacetate, Disodium Caproamphodipropionate, Disodium Capryloamphodiacetate, Disodium Capryloamphodipropionate, Disodium Cocoamphodiacetate, Disodium Cocoamphodipropionate, Disodium Isostearoamphodiacetate, Disodium Isostearoamphodipropionate, Disodium Laureth-5 Carboxyamphodiacetate, Disodium Lauroamphodiacetate, Disodium Lauroamphodipropionate, Disodium Oleoamphodipropionate, Disodium PPG-2-Isodeceth-7 Carboxyamphodiacetate, Disodium Stearoamphodiacetate, Disodium Tallowamphodiacetate, Sodium Caproamphopropionate, Sodium Capryloamphoacetate, Sodium Capryloamphopropionate, Sodium Cocoamphoacetate, Sodium Cocoamphopropionate, Sodium Isostearoamphoacetate, Sodium Isostearoamphopropionate, Sodium Lauroamphoacetate, Sodium Lauroamphopropionate, Sodium Myristoamphoacetate,Sodium Oleoamphoacetate, Sodium Oleoamphopropionate, Sodium Stearoamphoacetate, Sodium Stearoamphopropionate, Sodium Tallamphopropionate, Sodium Tallowamphoacetate, Sodium Undecylenoamphoacetate and Sodium Undecylenoamphopropionate.

[0059] Sodium cocoamphoacetate and disodium cocoamphodiacetate are particularly preferred. Especially suitable alkylsultaines or alkylhydroxysultaines are selected from the group consisting of capryl sultaine, cocamidopropyl hydroxysultaine, coco-hydroxysultaine, coco-sultaine, erucamidopropyl hydroxysultaine, lauramidopropyl hydroxysultaine, lauryl hydroxysultaine, lauryl hydroxysultaine, myristamidopropyl hydroxysultaine, oleamidopropyl hydroxysultaine, and tallowamidopropyl hydroxysultaine.

[0060] Besonders geeignete Alkylaminoxide sind ausgewählt aus der Gruppe Behenamine Oxide, Cocamidopropylamine Oxide, Cocamine Oxide, Decylamine Oxide, Decyltetradecylamine Oxide, Dihydroxyethyl C8-10 Alkoxypropylamine Oxide, Dihydroxyethyl C9-11 Alkoxypropylamine Oxide, Dihydroxyethyl C12-15 Alkoxypropylamine Oxide, Dihydroxyethyl Cocamine Oxide, Dihydroxyethyl Lauramine Oxide, Dihydroxyethyl Stearamine Oxide, Dihydroxyethyl Tallowamine Oxide, Hydrogenated Tallowamine Oxide, Isostearamidopropylamine Oxide, Lauramidopropylamine Oxide, Lauramine Oxide, Myristamidopropylamine Oxide, Myristamine Oxide, Palmitamidopropylamine Oxide, Palmitamine Oxide, PEG-3 Lauramine Oxide, Stearamidopropylamine Oxide, Stearamine Oxide, Tallowamidopropylamine Oxide, Tallowamine Oxide, Undecylenamidopropylamine Oxide.

[0061] Particularly suitable alkylamphoglycinates are selected from the group Caproamphoglycinate, Capryloamphoglycinate, Cocoamphoglycinate, Isostearoamphoglycinate, Lauroamphoglycinate, Myristoamphoglycinate, Oleoamphoglycinate, Stearoamphoglycinate, Tallowamphoglycinate, Undecylenoamphoglycinate.

[0062] Particularly suitable alkyliminodiacetates or alkyliminodipropionates are selected from the group consisting of Disodium Cocaminopropyl Iminodiacetate, Disodium Hydroxyethyliminodiacetate, Disodium Lauriminodiacetate, Disodium Lauriminodipropionate, Disodium Steariminodipropionate, Disodium Tallowiminodipropionate, Sodium C12-15 Alkoxypropyl Iminodipropionate, Sodium Cocoiminodiacetate, Sodium Lauriminodipropionate.

[0063] Particularly suitable alkylamphopropyl sulfonates are selected from sodium cocoamphohydroxypropyl sulfonate, sodium lauroamphohydroxypropyl sulfonate, sodium oleoamphohydroxypropyl sulfonate, sodium stearoamphohydroxypropyl sulfonate, disodium lauriminobishydroxypropyl sulfonate, disodium cocoamphocarboxyethyl hydroxypropyl sulfonate, sodium caproamphohydroxypropyl sulfonate, sodium Capryloamphohydroxypropylsulfonates.

[0064] Hair treatment products according to the invention, which are formulated as hair cleaning products, preferably contain alkylamidoalkyl betaines, alkylamphoacetates and / or alkylamphodiacetates as amphoteric and / or zwitterionic surfactants.

[0065] Suitable non-ionic surfactants for use as co-surfactants include, for example, Amine oxides, which may be selected from compounds of general formulas (I) or (II) in which R represents a straight-chain or branched, saturated or mono- or polyunsaturated alkyl or alkenyl group with 6 to 24 carbon atoms, preferably with 8 to 18 carbon atoms. Particularly preferred are the surfactants of the aforementioned formula (I) or (II), known under the INCI names Cocamine Oxide, Lauramine Oxide and / or Cocamidopropylamine Oxide and commercially available from various suppliers. Fatty acid alkanolamides of the following general formula, where R preferably denotes a linear or branched, saturated or unsaturated alkyl or alkenyl residue with 8 to 24 carbon atoms, and the residues R' represent hydrogen or the group -(CH₂)nOH, where n represents the numbers 2 or 3, provided that at least one of the residues R' represents the aforementioned residue -(CH₂)nOH, mixtures of alkyl (oligo)glucosides and fatty alcohols, for example, the commercially available product Montanov® < 68, sterols. Sterols are understood to be a group of steroids that bear a hydroxyl group at carbon atom 3 of the steroid skeleton and are isolated from both animal tissue (zoosterols) and vegetable fats (phytosterols). Examples of zoosterols are cholesterol and lanosterol. Examples of suitable phytosterols are ergosterol, stigmasterol, and sitosterol. Sterols, known as mycosterols, are also isolated from fungi and yeasts. Phospholipids.This includes, in particular, glucose phospholipids, which are obtained, for example, as lecithins or phosphatidylcholines from, for example, egg yolks or plant seeds (e.g., soybeans), and alkyl(oligo)glycosides. Suitable alkyl(oligo)glycosides can be selected from compounds of the general formula RO-[G] x, in which [G] is preferably derived from aldoses and / or ketoses with 5-6 carbon atoms, preferably from glucose. The index number x represents the degree of oligomerization (DP), i.e., the distribution of mono- and oligoglycosides. The index number x preferably has a value in the range of 1 to 10, particularly preferably in the range of 1 to 3, and may not be an integer but a fraction that can be determined analytically.

[0066] Particularly preferred alkyl(oligo)glycosides have a degree of oligomerization between 1.2 and 1.5. The R group preferably represents at least one alkyl and / or alkenyl group with 4 to 24 carbon atoms. Particularly preferred alkyl(oligo)glycosides are the compounds known under the INCI names caprylyl / capryl glucoside, decyl glucoside, lauryl glucoside, and coco glucoside.

[0067] Particularly preferred non-ionic surfactants that may be included as co-surfactants in the (hair cleansing) products according to the invention are fatty acid alkanolamides and / or alkyl(oligo)glucosides. Fatty acid alkanolamides are particularly preferred.

[0068] Suitable cationic surfactants within the meaning of the present invention are: Quaternary ammonium compounds, for example selected from compounds of the following formula in which the residues R 1 , R 2 , R 3 and R 4 each independently represent hydrogen, a methyl group, a phenyl group, a benzyl group or a saturated, branched or unbranched alkyl residue with a chain length of 8 to 30 carbon atoms, which may optionally be substituted with one or more hydroxy groups, provided that at least one of the residues R 1 , R 2 , R 3 and R 4 does not represent hydrogen, but represents a physiologically acceptable anion, for example a halide such as chloride or bromide, as well as methosulfates.Examples of preferred quaternary ammonium compounds of the aforementioned formula are lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium methosulfate, dicetyldimethylammonium chloride, tricetylmethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, lauryldimethylbenzylammonium chloride, behenyltrimethylammonium chloride, behenyltrimethylammonium bromide, and behenyltrimethylammonium methosulfate. Cetyltrimethylammonium chloride and / or behenyltrimethylammonium chloride are particularly preferred. Esterquats, for example, selected from compounds of the following formula, are also preferred. wherein the residues R1, R2 and R3 can each be the same or different independently of one another and can have the following meanings: a branched or unbranched alkyl residue with 1 to 4 carbon atoms, which may contain at least one hydroxyl group, or a saturated or unsaturated, branched or unbranched or a cyclic saturated or unsaturated alkyl residue with 6 to 30 carbon atoms, which may contain at least one hydroxyl group, or an aryl or alkylaryl residue, for example phenyl or benzyl, the residue (-XR4), with the proviso that at most 2 of the residues R1, R2 and R3 can represent this residue, wherein X represents: 1) -(CH2)n- with n = 1 to 20, preferably n = 1 to 10 and particularly preferably n = 1 to 5, or 2) -(CH2-CHR5-O) n - where n = 1 to 200, preferably 1 to 100, particularly preferably 1 to 50, and especially 1 to 20, and R 5 represents hydrogen, a methyl or ethyl group,3) a hydroxyalkyl group with one to four carbon atoms, which may be branched or unbranched, and which contains at least one and at most three hydroxy groups. Examples are: -CH₂OH, -CH₂CH₂OH, -CHOHCHOH, -CH₂CHOHCH₃, -CH(CH₂OH)₂, -COH(CH₂OH)₂, 4) -CH₂CHOHCH₂OH, -CH₂CH₂CH₂OH and hydroxybutyl groups, and R₄ represents: 1) the group R₆ -O-CO-, wherein R₆ represents a saturated or unsaturated, branched or unbranched or a cyclic saturated or unsaturated alkyl group having 6 to 30 carbon atoms, which may contain at least one hydroxy group, and which may optionally be further oxyethylated with 1 to 100 ethylene oxide units and / or 1 to 100 propylene oxide units, or 2) the group R₇ -CO-, wherein R₇ represents a saturated or unsaturated, branched or unbranched or a cyclic saturated or unsaturated alkyl group with 6 to 30 carbon atoms,which may contain at least one hydroxyl group, and which may optionally be further oxyethylated with 1 to 100 ethylene oxide units and / or 1 to 100 propylene oxide units, and A represents a physiologically acceptable organic or inorganic anion, for example a halide ion such as chloride, bromide, iodide, a sulfate ion of the formula RSO₃-<, where R represents a saturated or unsaturated alkyl group with 1 to 4 carbon atoms, or an organic acid anion such as maleate, fumarate, oxalate, tartrate, citrate, lactate, or acetate. Esterquats, for example selected from compounds of the following formula, wherein R 8 corresponds in meaning to R 7 and wherein A -< has the same meaning as previously described. Particularly preferred are esterquats which, according to the INCI nomenclature, are designated as distearoylethyl hydroxyethylmonium methosulfate, dicocoylethyl hydroxyethylmonium methosulfate, dipalmitoylethyldimonium chloride, and behenoyl PG trimonium chloride.

[0069] In addition to the aforementioned essential and optional components, the hair treatment products according to the invention may contain further hair-conditioning active ingredients to increase their conditioning properties, provided that these do not negatively affect the foaming capacity and stability of the hair treatment products.

[0070] Particularly suitable hair conditioning agents within the meaning of the present invention are preferably to understand cationic polymers, oil, fat and / or wax components, protein hydrolysates, plant extracts.

[0071] In a preferred embodiment, the hair treatment products according to the invention contain at least one cationic polymer in a weight fraction of 0.01 to 3 wt.% of the total weight of the hair treatment product.

[0072] In a further preferred embodiment, hair treatment products according to the invention contain at least one oil, fat or wax component in a weight fraction of 0.01 to 5 wt.% of the total weight of the hair treatment product.

[0073] In a further preferred embodiment, the hair treatment products according to the invention contain at least one protein hydrolysate in a weight fraction of 0.01 to 3 wt.% of the total weight of the hair treatment product and / or at least one plant extract in a weight fraction of 0.01 to 3 wt.% of the total weight of the hair treatment product.

[0074] Suitable cationic polymers within the meaning of the present invention are, for example: quaternized cellulose polymers, especially polyquaternium-10, as commercially available under the names Celquat® and Polymer JR®, hydrophobically modified cationic cellulose derivatives, for example the cationic polymers marketed under the trade name SoftCat®, cationic alkyl polyglycosides, cationized honey, for example the commercial product Honeyquat® 50, cationic galactomannan derivatives, in particular cationic guar and / or cassia polymers, such as the products available under the trade names Jaguar®, N-Hance®, Polycare®, Clearhance®.Particularly suitable are: Jaguar ®< C-162, Jaguar ®< C500, Jaguar ®< Styl 100, Jaguar ®< Excel, N-Hance ®< 3196, N-Hance ®< HPCG 1000 and / or Polycare ®< Split Therapy, cationic starch derivatives such as those commercially available under the name Mirustyle ®<, cationic inulin polymers, polymeric dimethyldiallylammonium salts and their copolymers with esters and amides of acrylic acid and methacrylic acid, especially polyquaternium-6 and polyquaternium-7. The products available commercially under the names Merquat ®< 100 (Poly(dimethyldiallylammonium chloride)) and Merquat ®< 550 (Dimethyldiallylammonium chloride-acrylamide copolymer) are examples of such cationic polymers, copolymers of vinylpyrrolidone with quaternized derivatives of dialkylaminoalkyl acrylate and methacrylate, such as vinylpyrrolidone-dimethylaminoethyl methacrylate copolymers quaternized with diethyl sulfate.Such compounds are commercially available under the names Gafquat®< 734 and Gafquat®< 755, vinylpyrrolidone-vinylimidazolium methochloride copolymers, as offered under the names Luviquat®< FC 370, FC 550, FC 905 and HM 552, quaternized polyvinyl alcohol, as well as the polymers known as polyquaternium-2, polyquaternium-17, polyquaternium-18, polyquaternium-22, polyquaternium-24, polyquaternium-27, polyquaternium-32, polyquaternium-37, polyquaternium-67, polyquaternium-74 and polyquaternium-89.

[0075] Cationic polymers of natural origin such as quaternized cellulose polymers, hydrophobically modified cationic cellulose derivatives and / or cationic guard derivatives are preferred.

[0076] Particularly preferred are the cationic polymers known under the INCI names Guar Hydroxypropyltrimonium Chloride, Polyquaternium-10, Polyquaternium-67 and / or Hydroxypropyltrimonium Hydrolyzed Corn Starch; Guar Hydroxypropyltrimonium Chloride and Polyquaternium-10 are especially preferred.

[0077] Suitable oil, grease and / or wax components within the meaning of the present invention are: Mineral oils such as paraffin and isoparaffin oils and synthetic hydrocarbons. An example of a usable hydrocarbon is 1,3-di-(2-ethylhexyl)cyclohexane (Cetiol®< S), which is available as a commercial product. Dialkyl ethers, preferably di-n-alkyl ethers with a total of between 12 and 36 carbon atoms, in particular 12 to 24 carbon atoms, such as di-n-octyl ether, di-n-decyl ether, di-n-nonyl ether, di-n-undecyl ether, di-n-dodecyl ether, n-hexyl-n-octyl ether, n-octyl-n-decyl ether, n-decyl-n-undecyl ether, n-undecyl-n-dodecyl ether and n-hexyl-n-undecyl ether as well as di-tert-butyl ether, di-iso-pentyl ether, di-3-ethyldecyl ether, tert-butyl-n-octyl ether, iso-pentyl-n-octyl ether and 2-methylpentyl-n-octyl ether. The di-n-octyl ether, which is commercially available under the name Cetiol ®< OE, is particularly preferred.Fatty alcohols can be saturated, monounsaturated, or polyunsaturated, branched or unbranched fatty alcohols with C6-C30, preferably C10-C22, and most preferably C12-C22 carbon atoms. Examples include decanol, octanol, octenol, dodecenol, decenol, octadienol, dodecadienol, decadienol, oleyl alcohol, erucal alcohol, ricinol alcohol, stearyl alcohol, isostearyl alcohol, cetyl alcohol, lauryl alcohol, myristyl alcohol, arachidyl alcohol, caprylic alcohol, capric alcohol, linoleyl alcohol, linolenyl alcohol, and behenyl alcohol, as well as their Guerbet alcohols. This list is intended to be exemplary and not exhaustive. The fatty alcohols are derived from preferably natural fatty acids, typically obtained from the esters of these fatty acids by reduction.Fatty alcohol fractions produced by reducing naturally occurring triglycerides such as beef tallow, palm oil, peanut oil, rapeseed oil, cottonseed oil, soybean oil, sunflower oil and linseed oil, or fatty acid esters resulting from their transesterification products with corresponding alcohols, and thus representing a mixture of different fatty alcohols, can also be used according to the invention. Such substances are available for purchase under names such as Stenol®< , e.g. Stenol®< 1618 or Lanette®< , e.g. Lanette®< O or Lorol®< , e.g. Lorol®< C8, Lorol®< C14, Lorol®< C18, Lorol®< C8-18, HD-Ocenol®< , Crodacol®< , e.g. Crodacol®< CS, Novol®< , Eutanol®< G, Guerbitol®< 16, Guerbitol®< 18, Guerbitol®< 20, Isofol®< 12, Isofol®< 16, Isofol®< 24, Isofol®< 36, Isocarb®< 12, Isocarb®< 16 or Isocarb®< 24.Naturally, wool wax alcohols, such as those commercially available under the names Corona®, White Swan®, Coronet®, or Fluilan®, can also be used according to the invention. Ester oils such as the esters of C6-C30 fatty acids with C2-C30 fatty alcohols are also suitable. Monoesters of fatty acids with alcohols having 2 to 24 carbon atoms are preferred. Examples of fatty acid components used in the esters are caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, elaeostearic acid, arachidic acid, gadoleic acid, behenic acid, and erucic acid, as well as their technical mixtures.Examples of fatty alcohols found in ester oils include isopropyl alcohol, capron alcohol, capryl alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol, as well as their technical mixtures.Particularly preferred are isopropyl myristate (Rilanit ® < IPM), isononanoic acid C16-18 alkyl ester (Cetiol ® < SN), 2-ethylhexyl palmitate (Cegesoft ® < 24), 2-ethylhexyl stearate (Cetiol ® < 868), cetyl oleate, glycerol tricaprylate, Coconut fatty alcohol caprinate / caprylate (Cetiol ®< LC), n-butyl stearate, oleyl rucate (Cetiol ®< J 600), isopropyl palmitate (Rilanit ®< IPP), oleyl oleate (Cetiol ®< ), hexyl laurate (Cetiol ®< A), di-n-butyl adipate (Cetiol ®< B), myristyl myristate (Cetiol ®< MM), Cetearyl Isononanoate (Cetiol ®< SN), decyl oleic acid (Cetiol ®< V).Dicarboxylic acid esters such as di-n-butyl adipate, di-(2-ethylhexyl) adipate, di-(2-ethylhexyl) succinate and di-isotridecyl acelaate, as well as diol esters such as ethylene glycol dioleate, ethylene glycol diisotridecanoate, propylene glycol di(2-ethylhexanoate), propylene glycol diisostearate, propylene glycol dipelargonate, butanediol diisostearate, neopentyl glycol dicaprylate, symmetrical, unsymmetrical or cyclic esters of carbonic acid with fatty alcohols, glycerol carbonate or dicaprylyl carbonate (Cetiol®< CC), ethoxylated or non-ethoxylated mono-, di- and tri-fatty acid esters of saturated and / or unsaturated linear and / or branched fatty acids with glycerol, such as Monomuls®< 90-O18 (INCI name: Glyceryl Oleate), Monomuls ®< 90-L12 (INCI name: Glyceryl Laurate), Cetiol ®< HE (INCI name: PEG-7 Glyceryl Cocoate) or Cutina ®< MD (INCI name: Glyceryl Stearate).Natural oils and / or butters such as coconut oil, (sweet) almond oil, walnut oil, peach kernel oil, apricot kernel oil, avocado oil, tea tree oil, soybean oil, cottonseed oil, sesame oil, sunflower oil, tsubaki oil, evening primrose oil, rice bran oil, palm oil, palm kernel oil, mango kernel oil, cranberry oil, sea buckthorn oil, meadowfoam oil, safflower oil, macadamia nut oil, grapeseed oil, amaranth seed oil, argan oil, bamboo oil, olive oil, wheat germ oil, pumpkin seed oil, mallow oil, marula oil, pomegranate seed oil, Brazil nut oil, passion fruit seed oil, rosehip seed oil, hazelnut oil, hemp oil, coffee oil, castor oil, safflower oil, corn oil, olive oil, rapeseed oil, canola oil, sasanqua oil, jojoba oil, rambutan oil, shea butter, mango butter, murumuru butter, cocoa butter Apricot kernel butter, mafura butter, bacuri butter, tucuma butter, ucuuba butter and / or cupuacu butter.Waxes, for example natural waxes such as carnauba wax, candelilla wax and / or jojoba oil, as well as animal waxes such as beeswax, lanolin, spermaceti and / or preen gland oil and / or synthetic mineral waxes such as hard paraffin, ceresin, ozokerite, ester waxes such as polyethylene glycol or polyethylene glycol ester waxes and / or hydrogenated vegetable oils (especially hydrogenated castor oil).

[0078] Suitable protein hydrolysates are understood to be product mixtures that can be obtained by acid-, basic- or enzymatically catalyzed degradation of proteins.

[0079] Protein hydrolysates of plant, animal, and / or marine origin can be used. Animal protein hydrolysates include, for example, elastin, collagen, keratin, silk, and milk protein hydrolysates, which can also be present in salt form. Such products are marketed, for example, under the brand names Dehylan® (Cognis), Promois® (Interorgana), Collapuron® (Cognis), Nutrilan® (Cognis), Gelita-Sol® (Deutsche Gelatine Fabriken Stoess & Co), Lexein® (Inolex), and Kerasol® (Croda).

[0080] Protein hydrolysates of plant origin are preferred, e.g., soy, almond, rice, pea, potato, and wheat protein hydrolysates. Such products are available, for example, under the brand names Gluadin® (Cognis), DiaMin® (Diamalt), Lexein® (Inolex), and Crotein® (Croda).

[0081] Cationic protein hydrolysates can also be used, whereby the underlying protein hydrolysate can originate from animals, for example from collagen, milk, or keratin; from plants, for example from wheat, corn, rice, potatoes, soy, or almonds; from marine life forms, for example from fish collagen or algae; or from biotechnologically produced protein hydrolysates. The protein hydrolysates underlying the cationic derivatives can be obtained from the corresponding proteins by chemical hydrolysis, in particular alkaline or acidic hydrolysis, by enzymatic hydrolysis, and / or a combination of both hydrolysis methods. The hydrolysis of proteins generally yields a protein hydrolysate with a molecular weight distribution of approximately 100 Daltons to several thousand Daltons. Cationic protein hydrolysates whose underlying protein fraction has a molecular weight of 100 to 25,000 Daltons are preferred.preferably exhibits a cationic acid hardness of 250 to 5000 Daltons. Furthermore, cationic protein hydrolysates include quaternized amino acids and mixtures thereof. The quaternization of the protein hydrolysates or the amino acids is frequently carried out using quaternary ammonium salts such as N,N-dimethyl-N-(n-alkyl)-N-(2-hydroxy-3-chloro-n-propyl)-ammonium halides. The cationic protein hydrolysates may also be further derivatized. Typical examples of cationic protein hydrolysates and derivatives include the following products known under INCI names and available commercially: Cocodimonium Hydroxypropyl Hydrolyzed Collagen, Cocodimonium Hydroxypropyl Hydrolyzed Casein, Cocodimonium Hydroxypropyl Hydrolyzed Collagen, Cocodimonium Hydroxypropyl Hydrolyzed Hair Keratin, Cocodimonium Hydroxypropyl Hydrolyzed Keratin, Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein, Cocodimonium Hydroxypropyl Hydrolyzed Silk.Cocodimonium Hydroxypropyl Hydrolyzed Soy Protein, Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein, Cocodimonium Hydroxypropyl Silk Amino Acids, Hydroxypropyl Arginine Lauryl / Myristyl Ether HCl, Hydroxypropyltrimonium Gelatin, Hydroxypropyltrimonium Hydrolyzed Casein, Hydroxypropyltrimonium Hydrolyzed Collagen, Hydroxypropyltrimonium Hydrolyzed Conchiolin Protein, Hydroxypropyltrimonium Hydrolyzed keratin, Hydroxypropyltrimonium Hydrolyzed Rice Bran Protein, Hydroxyproypltrimonium Hydrolyzed Silk, Hydroxypropyltrimonium Hydrolyzed Soy Protein, Hydroxypropyl Hydrolyzed Vegetable Protein, Hydroxypropyltrimonium Hydrolyzed Wheat Protein, Hydroxypropyltrimonium Hydrolyzed Wheat Protein / Siloxysilicate, Laurdimonium Hydroxypropyl Hydrolyzed Soy Protein, Laurdimonium Hydroxypropyl Hydrolyzed Wheat Protein, Laurdimonium Hydroxypropyl Hydrolyzed Wheat Protein / Siloxysilicate, Lauryldimonium Hydroxypropyl Hydrolyzed Casein, Lauryldimonium Hydroxypropyl Hydrolyzed Collagen,Lauryldimonium Hydroxypropyl Hydrolyzed Keratin, Lauryldimonium Hydroxypropyl Hydrolyzed Silk, Lauryldimonium Hydroxypropyl Hydrolyzed Soy Protein, Steardimonium Hydroxypropyl Hydrolyzed Casein, Steardimonium Hydroxypropyl Hydrolyzed Collagen, Steardimonium Hydroxypropyl Hydrolyzed Keratin, Steardimonium Hydroxypropyl Hydrolyzed Rice Protein, Steardimonium Hydroxypropyl Hydrolyzed Silk, Steardimonium Hydroxypropyl Hydrolyzed Soy Protein, Steardimonium Hydroxypropyl Hydrolyzed Vegetable Protein, Steardimonium Hydroxypropyl Hydrolyzed Wheat Protein, Steartrimonium Hydroxyethyl Hydrolyzed Collagen, Quaternium-76 Hydrolyzed Collagen, Quaternium-79 Hydrolyzed Collagen, Quaternium-79 Hydrolyzed Keratin, Quaternium-79 Hydrolyzed Milk Protein, Quaternium-79 Hydrolyzed Silk, Quaternium-79 Hydrolyzed Soy Protein, Quaternium-79 Hydrolyzed Wheat Protein.,

[0082] Suitable plant extracts include, in particular, extracts from green tea, oak bark, nettle, witch hazel, hops, henna, chamomile, burdock root, horsetail, hawthorn, linden blossom, almond, aloe vera, spruce needle, horse chestnut, date palm, cinnamon tree, sandalwood, juniper, coconut, mango, apricot, lemon, wheat, kiwi, melon, orange, grapefruit, sage, rosemary, birch, mallow, valerian, meadowsweet, wild thyme, yarrow, thyme, lemon balm, restharrow, coltsfoot, marshmallow, meristem, ginseng, coffee, cocoa, moringa, ginger root, and Ayurvedic plant extracts such as Aegle Marmelos (Bilwa), Cyperus Rotundus (Nagar Motha), Emblica Officinalis (Amalki), Morida Citrifolia (Ashyuka), and Tinospora Cordifolia. (Guduchi), Santalum album, (Chandana), Crocus Sativus (Kumkuma), Cinnamomum Zeylanicum and Nelumbo Nucifera (Kamala), sweet grasses such as wheat, barley, rye, oats, spelt, maize, the various varieties of millet (fox millet, finger millet, foxtail millet as examples),Sugarcane, ryegrass, meadow foxtail, tall oatgrass, bentgrass, meadow fescue, purple moor grass, bamboo, cotton grass, fountain grasses, Andropogonodeae (Imperata cylindrica also called flame grass or cogon grass), bison grass, cordgrasses, dog's-tooth grasses, lovegrasses, Cymbopogon (lemon grass), Oryzeae (rice), Zizania (wild rice), beach grass, perennial oatgrass, sweetgrasses, quaking grasses, bluegrasses, couch grasses and Echinacea, especially Echinacea angustifolia DC, Echinacea paradoxa (Norton), Echinacea simulata, E. atrorubens, E. tennesiensis, Echinacea strigosa (McGregor), Echinacea laevigata, Echinacea purpurea (L.) Moench and Echinacea pallida (Nutt), All types of algae, coral moss and seaweed (such as Macrocystis pyrifera extract), all types of vine, and the pericarp of Litchis chinensis. Suitable extracts can be obtained from the fruits, seeds, flowers, roots, leaves and / or bark of the aforementioned plants or from the whole plants (algae,seaweed) are harvested.

[0083] According to the invention, the plant extracts can be used in both pure and diluted form. When used in diluted form, they typically contain approximately 2–80% by weight of active substance and the extraction solvent or mixture of extraction solvents used in their production. Suitable extraction solvents are usually water and / or alcohols.

[0084] Other active ingredients, excipients and additives that may preferably be included in the hair treatment products according to the invention are, for example: Perfumes, UV filters, (natural) dyes for coloring the product, active ingredients such as bisabolol and / or allantoin, complexing agents such as EDTA, NTA, β-alanine diacetic acid and phosphonic acids, ceramides. Ceramides are understood to be N-acylsphingosine (fatty acid of sphingosine) or synthetic analogs of such lipids (so-called pseudo-ceramides), antioxidants, preservatives such as sodium benzoate or salicylic acid, pH adjusters such as citric acid and / or lactic acid, viscosity regulators such as salts (NaCl).

[0085] A second object of the invention is the use of an active ingredient combination comprising 3-hydroxypropyloctanoic acid ester a) and at least one anti-dandruff active ingredient different from a) in hair treatment products for a. Achieving improved anti-dandruff efficacy, b. Optimizing viscosity adjustment, c. Stabilizing foam properties, d. Improving hair grip, e. Improving hair elasticity, f. Improving hair smoothness.

[0086] A third object of the invention is the use of the hair treatment agent according to the invention for cleaning and caring for human hair as well as for the prophylaxis, reduction, elimination and relief of dandruff on hairy body surfaces, in particular as an anti-dandruff shampoo.

[0087] Regarding further preferred embodiments of the use according to the invention, what has been said about the compositions according to the invention applies.

[0088] The following examples are intended to illustrate the subject matter of the present invention without limiting it. Examples:

[0089] The following hair treatment products were manufactured (the quantities refer to [wt%]): a) Rinse-off compositions

[0090] 1 2 3 4 Propanediol Caprylate 0,01 - 4 0,075 - 0,75 0,1 - 0,4 0,1 - 0,4 Piroctone Olamine 0,01 - 2 0,075 - 0,75 0,1 - 0,4 Zinc pyrithione 0,01 - 2 0,1 - 0,4 anionic surfactant 0,5 - 12,5 0,5 - 12,5 Sodium Laureth Sulfate 1 - 10 1 - 10 amphoteric surfactant 0,1 - 5 Disodium Cocoamphodiacetate 0,1 - 5 0,1 - 5 Cocoamidopropyl betaine 0,1 - 5 0,1 - 5 non-ionic surfactant 0,1 - 5 Cocamide MEA 0,1 - 1 oil, grease or wax 0,01 - 5 Jojoba oil 0,01 - 1 apricot kernel oil 0,01 - 1 cationic polymer 0,01 - 3 0,1 - 0,6 Guar Hydroxypropyltrimonium Chloride 0,01 - 1 0,01 - 1 Polyquaternium-10 0,01 - 1 citric acid 0,1 - 0,5 0,1 - 0,5 0,1 - 0,5 0,1 - 0,5 Sodium chloride 0 - 0,5 0 - 0,5 0,1 - 0,5 0,1 - 0,3 preservatives qs qs qs qs Water ad 100 ad 100 ad 100 Water PH value 4,5 - 5,0 4,5 - 5,0 4,8 ± 0,2 PH value b) Hair care products

[0091] 5 6 7 8 Propanediol Caprylate 0,01 - 4 0,075 - 0,75 0,1 - 0,4 0,1 - 0,4 Piroctone Olamine 0,01 - 2 0,075 - 0,75 0,1 - 0,4 Zinc pyrithione 0,01 - 2 0,1 - 0,4 Esterquat 0,1 -3 0,1 -3 0,1 -3 0,1 -3 Cetrimonium Chloride 0,1-3 0,1-3 0,1-3 0,1-3 Cetearyl Alcohol 0,5-10 0,5-10 0,5-10 0,5-10 Glycerin 0,01-8 0,01-8 0,01-8 0,01-8 silicone oil 0-10 0-10 0-10 0-10 oil, grease or wax 0,01 - 5 0,01 - 5 Jojoba oil 0,01 - 1 apricot kernel oil 0,01 - 1 Guar Hydroxypropyltrimonium Chloride 0,01 - 1 0,01 - 1 Polyquaternium-10 0,01 - 1 citric acid 0,1 - 0,5 0,1 - 0,5 0,1 - 0,5 0,1 - 0,5 preservatives qs qs qs qs Water ad 100 ad 100 ad 100 ad 100 PH value 2,5-4,8 2,5-4,8 2,5-4,8 2,5-4,8 c) Assessment

[0092] The two shampoos A (according to the invention) and B in the following table were tested on three models in the hair salon and evaluated by experts. A B Propanediol Caprylate 0,25 Piroctone Olamine 0,25 0,5 Sodium Laureth Sulfate 9,1 9,1 Cocoamidopropyl betaine 3,0 3,0 Guar Hydroxypropyltrimonium Chloride 0,25 0,25 Sodium chloride 0,25 0,25 Preservatives, pH adjusters qs qs Water ad 100 ad 100 PH value 4,5 - 5,0 4,5 - 5,0

[0093] In addition to a very good anti-dandruff effect, Shampoo A shows, in particular, faster foam development (flash foam) and a higher foam volume compared to Shampoo B.

Claims

1. Hair treatment agent containing a) 3-hydroxypropyloctanoic acid ester (propanediol caprylate) and b) at least one of a) various anti-dandruff agents wherein the anti-dandruff agents a) and b) in a weight proportion of up toare contained and 0.75% by weight of the total weight of the hair treatment agent wherein at least one anti-dandruff agent b) contains piroctone olamine.

2. Hair treatment agent according to claim 1, containing as anti-dandruff agent b) a mixture of piroctone olamine and at least one zinc salt selected from the group consisting of zinc pyrithione, zinc oxide, and / or zinc carbonate.

3. Hair treatment agent according to one of claims 1 or 2, containing 3-hydroxypropyloctanoic acid ester and the anti-dandruff agent b) in a weight ratio of 1:3 to 3:1.

4. Hair treatment agent according to one of the preceding claims, it contains at least one anionic, amphoteric, zwitterionic, nonionic, and / or cationic surfactant in a weight proportion of up to 15% by weight of the total weight of the hair treatment agent.

5. Hair treatment agent according to one of the preceding claims, containing at least one anionic surfactant in a weight proportion of up to 12.5% by weight of the total weight of the hair treatment agent.

6. Hair treatment agent according to one of the preceding claims, containing (i) at least one anionic surfactant in a weight proportion of 1 to 10% by weight of the total weight of the hair treatment agent and (ii) at least one amphoteric and / or zwitterionic surfactant in a weight proportion of 0.1 to 5% by weight of the total weight of the hair treatment agent and / or (iii) at least one nonionic surfactant in a weight proportion of 0.1 to 5% by weight of the total weight of the hair treatment agent.

7. Hair treatment agent according to one of the preceding claims, containing at least one cationic surfactant in a weight proportion of up to 5% by weight of the total weight of the hair treatment agent.

8. Hair treatment agent according to one of the preceding claims, contain at least one cationic polymer in a weight proportion of 0.01 to 3% by weight of the total weight of the hair treatment agent.

9. Hair treatment agent according to one of the preceding claims, containing at least one oil, fat, or wax component in a weight proportion of 0.01 to 5% by weight of the total weight of the hair treatment agent.

10. Hair treatment agent according to one of the preceding claims, containing at least one protein hydrolysate in a weight proportion of 0.01 to 3% by weight of the total weight of the hair treatment agent and / or at least one plant extract in a weight proportion of 0.01 to 3% by weight of the total weight of the hair treatment agent.

11. Use of an active ingredient combination comprising 3-hydroxypropyloctanoic acid ester a) and at least one anti-dandruff active ingredient b) different from a) , wherein the anti-dandruff agents a) and b) in a weight proportion of up to 0.75% by weight are contained of the total weight of the hair treatment agent and wherein the at least one anti-dandruff agent contains piroctone olamine, in hair treatment agents for a. achieving improved anti-dandruff efficacy, b. optimization of viscosity adjustment, c. stabilizing the foaming properties, d. improving hair texture, e. improving hair elasticity, f. Improving hair smoothness.