Hair cosmetics

Abstract

To provide a hair cosmetic capable of giving softness to the hair and having excellent settlement, moist feeling, finger combing and smoothness even when a cationic surfactant is not blended.SOLUTION: There is provided a hair cosmetic which comprises 0.5 to 50 mass% of (A) a dialkyl carbonate having an alkyl group having 8 or more carbon atoms, 0.3 to 30 mass% of (B) a higher alcohol having 10 to 28 carbon atoms, an anionic thickening agent, a nonionic thickening agent, 0.03 to 10 mass% of at least one emulsifier (C) selected from the group consisting of an anionic thickening agent, a nonionic thickening agent and a nonionic surfactant and water (D).SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to hair cosmetics.

Background Art

[0002] As one of the hair treatments that are not washed away, hair milk is widely used. Hair milk is often used for the purpose of imparting gloss, cohesion, moistness, and softness to hair for the purpose of caring for damaged hair. In recent years, there has been a tendency that hair cosmetics that can be used for both hair and skin are preferred, and for hair milk, products that can be used not only for hair but also for skin are demanded.

[0003] Since hair milk is an emulsion, generally, a surfactant is formulated. Conventionally, a cationic surfactant has been used to impart softness to hair in the surfactant formulated in hair milk. However, the cationic surfactant has a problem of irritation to the skin and causing a slimy feeling on the skin. In particular, studies have been conducted to alleviate the irritation to the skin. (Patent Document 1).

[0004] Also, studies on hair milk without formulating a cationic surfactant have been conducted (Patent Document 2).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the technology described in Patent Document 1 contains a cationic surfactant, which, although mild, raises concerns about skin irritation and is not of satisfactory quality. The technology described in Patent Document 2 does not contain a cationic surfactant, thus reducing skin irritation, but the softness of the hair is not of satisfactory quality.

[0007] Therefore, the object of the present invention is to provide a hair cosmetic that can impart softness to hair even without the inclusion of cationic surfactants, and that is also excellent in manageability, moisture, ease of combing, and smoothness. [Means for solving the problem]

[0008] The inventors diligently studied to solve the above problems. As a result, they found that a hair cosmetic composition having the following composition can solve the above problems, and thus completed the present invention. The present invention includes, for example, the following [1] to [7].

[0009] [1] A hair cosmetic comprising 0.5 to 50% by mass of dialkyl carbonate (A) having 8 carbon atoms in the alkyl group, 0.3 to 30% by mass of higher alcohol (B) having 10 to 28 carbon atoms, 0.03 to 10% by mass of at least one emulsifier (C) selected from the group consisting of anionic thickeners, nonionic thickeners, and nonionic surfactants, and water (D). [2] The hair cosmetic according to [1], further comprising 0.5 to 20% by mass of dimer dilinoleate ester (E). [3] A hair cosmetic according to [1] or [2], further comprising 0.5 to 20% by mass of an oil (F) that is liquid at 25°C. [4] The hair cosmetic according to any one of [1] to [3], wherein the dialkyl carbonate (A) having 8 carbon atoms in the alkyl group is at least one selected from the group consisting of dicaprylyl carbonate and diethylhexyl carbonate. [5] The hair cosmetic according to any one of [1] to [4], wherein the carbon-10 to carbon-28 higher alcohol (B) is at least one selected from the group consisting of myristyl alcohol, lauryl alcohol, and cetanol. [6] The hair cosmetic according to any one of [1] to [5], wherein the emulsifier (C) is at least one selected from the group consisting of (ammonium acryloyldimethyltaurate / VP) copolymer, carboxyvinyl polymer, hydroxyethylcellulose, and glyceryl stearate. [7] A leave-in treatment, a hair cosmetic product as described in any of [1] to [6]. [Effects of the Invention]

[0010] According to the present invention, even without the inclusion of cationic surfactants, it is possible to provide a hair cosmetic that can impart softness to the hair and also excels in manageability, moisture, manageability, and smoothness. [Modes for carrying out the invention]

[0011] Next, the hair cosmetic composition of the present invention will be described in detail. <Hair Cosmetics> The hair cosmetic composition of the present invention comprises 0.5 to 50% by mass of dialkyl carbonate (A) having 8 carbon atoms in the alkyl group, 0.3 to 30% by mass of higher alcohol (B) having 10 to 28 carbon atoms, 0.03 to 10% by mass of at least one emulsifier (C) selected from the group consisting of anionic thickeners, nonionic thickeners, and nonionic surfactants, and water (D).

[0012] <Dialkyl carbonate (A) with 8 carbon atoms in the alkyl group> The hair cosmetic composition of the present invention contains 0.5 to 50% by mass, preferably 1 to 30% by mass, and more preferably 2 to 20% by mass, of dialkyl carbonate (A) having 8 carbon atoms in the alkyl group (hereinafter also simply referred to as "component (A)").

[0013] When component (A) is within the above range, softness and smoothness can be imparted to the hair. Also, when component (A) is within the above range, both softness and a moist feeling of the hair can be achieved.

[0014] When component (A) is less than the lower limit amount, the softness and smoothness may deteriorate. Also, when component (A) is more than the upper limit amount, the stability of the preparation is poor, and separation may occur immediately after production or aggregates may be generated.

[0015] Examples of component (A) include dicaprylyl carbonate and diethylhexyl carbonate. It is preferable that component (A) is at least one selected from the group consisting of dicaprylyl carbonate and diethylhexyl carbonate, and dicaprylyl carbonate is more preferable because of its excellent softness and smoothness.

[0016] Since component (A) is a dialkyl carbonate having 8 carbon atoms, softness and smoothness can be imparted to the hair. In the case of a dialkyl carbonate having more than 8 carbon atoms, the softness and smoothness of the hair may deteriorate. Component (A) may be used alone or in combination of two or more.

[0017] <Higher alcohol (B) having 10 to 28 carbon atoms> The hair cosmetic of the present invention contains 0.3 to 30% by mass, preferably 1 to 20% by mass, more preferably 2 to 15% by mass of a higher alcohol (B) having 10 to 28 carbon atoms (hereinafter, also simply referred to as "component (B)").

[0018] When component (B) is within the above range, it has a viscosity suitable for application to the hair. Also, when component (B) is within the above range, it is excellent in moist feeling and the coherence of the hair tips.

[0019] When component (B) is less than the lower limit amount, the moist feeling and the coherence of the hair tips may deteriorate. Also, when component (B) is more than the upper limit amount, the stability of the preparation is poor, and separation may occur immediately after production or aggregates may be generated.

[0020] Examples of component (B) include monohydric higher alcohols having a linear or branched alkyl or alkenyl group with 10 to 28 carbon atoms. Component (B) preferably has 12 to 18 carbon atoms, more preferably 14 carbon atoms.

[0021] Component (B) may be a saturated higher alcohol or an unsaturated higher alcohol, but saturated higher alcohols are preferred because they have excellent effects on formulation stability. Specific examples of component (B) include myristyl alcohol, lauryl alcohol, cetyl alcohol, stearyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, hexyl decanol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, oleyl alcohol, and 2-octyldodecanol.

[0022] Among these, it is preferable that component (B) is at least one selected from the group consisting of myristyl alcohol, lauryl alcohol, and cetyl alcohol, and more preferably component (B) is myristyl alcohol because it is excellent in achieving both softness and a moist feeling. Component (B) may be used alone or in combination of two or more.

[0023] <Emulsifier (C)> The hair cosmetic of the present invention contains at least one emulsifier (C) (hereinafter also simply referred to as "component (C)") selected from the group consisting of anionic thickeners, nonionic thickeners, and nonionic surfactants in an amount of 0.03 to 10% by mass, preferably 0.05 to 5.0% by mass, more preferably 0.1 to 3.0% by mass.

[0024] When component (C) is within the above range, it has excellent formulation stability, particularly emulsifying power, and can also impart softness to the hair. If the amount of component (C) is less than the lower limit, the stability of the formulation will be poor, and separation or aggregation may occur immediately after manufacturing. Conversely, if the amount of component (C) is more than the upper limit, stickiness or hardness may occur.

[0025] Examples of anionic thickeners in component (C) include (ammonium acryloyldimethyltaurate / VP) copolymer, carboxyvinyl polymer, (acrylic acid / alkyl acrylate (C10-30)) copolymer, (acrylates / steareth-20 itaconic acid) copolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, xanthan gum, and sodium polyacrylate.

[0026] Examples of nonionic thickeners include hydroxyethylcellulose, methylcellulose, hydroxypropylmethylcellulose, (behenic acid / eicodiic acid) glyceryl gellan gum, and tamarind gum.

[0027] Examples of nonionic surfactants include glyceryl stearate, higher fatty acid glyceryl ethers, polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, higher fatty acid sucrose esters, polyglycerin fatty acid esters, higher fatty acid mono or diethanolamides, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, alkyl polyglycosides, alkylamine oxides, and alkylamideamine oxides.

[0028] Among these, it is preferable that component (C) is at least one selected from the group consisting of (ammonium acryloyldimethyltaurate / VP) copolymer, carboxyvinyl polymer, hydroxyethylcellulose, and glyceryl stearate, and it is more preferable that component (C) is (ammonium acryloyldimethyltaurate / VP) copolymer because it has excellent emulsifying power and softness of hair. Component (C) may be used alone or in combination of two or more types.

[0029] <Water(D)> The hair cosmetic composition of the present invention contains water (D). The hair cosmetic composition of the present invention preferably contains 15 to 98% by mass, more preferably 20 to 95% by mass, and even more preferably 30 to 85% by mass of water (D).

[0030] When the water (D) is within the aforementioned range, it is preferable because it results in excellent spreadability of the formulation and excellent moisturizing effect on the hair. Specifically, water (D) can be tap water, deionized water, purified water, natural water, or distilled water, with deionized water being preferred.

[0031] <Dimer Dilinoleate (E)> The hair cosmetic composition of the present invention preferably contains 0.5 to 20% by mass, more preferably 1 to 15% by mass, and even more preferably 2 to 10% by mass, of dimer dilinoleate ester (E) (hereinafter also simply referred to as "component (E)").

[0032] It is preferable that component (E) is within the above range because it provides excellent smoothness and ease of handling. Examples of component (E) include esters of dimer dilinoleic acid with alcohols, alcohol mixtures, or dimer ols.

[0033] Specifically, ingredient (E) can be dimer dilinoleyl dimer dilinoleate or di(isostearyl / phytosteryl) dimer dilinoleate. Among these, ingredient (E) is more preferably dimer dilinoleyl dimer dilinoleate because it is particularly excellent in keeping the ends of the hair together and maintaining smoothness. Component (E) may be used alone or in combination of two or more types.

[0034] <Liquid oil at 25℃ (F)> The hair cosmetic composition of the present invention preferably contains 0.5 to 20% by mass, more preferably 1 to 15% by mass, and even more preferably 2 to 10% by mass, of an oil (F) that is liquid at 25°C (hereinafter also simply referred to as "component (F)").

[0035] It is preferable that component (F) is within the aforementioned range, as this can give the hair a smooth, manageable feel and moisturized look without making it sticky. Examples of component (F) include hydrocarbons, vegetable oils, ester oils, fatty acids, silicone oils, and the like.

[0036] Specifically, examples of hydrocarbons include liquid paraffin, light liquid isoparaffin, α-olefin oligomer, squalane, polyisobutylene, and polybutene. Examples of vegetable oils include vegetable squalane, almond oil, macadamia nut oil, olive oil, sesame oil, rice bran oil, camellia oil, apricot kernel oil, and jojoba seed oil.

[0037] Examples of ester oils include caprylic / capric triglyceride, ethylhexyl isononanoate, isononyl isononanoate, isostearyl isostearate, C14-18 alkyl ethylhexanoate, diethylhexyl succinate, isotridecyl isononanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, glyceryl trioctanoate, cetyl octanoate, polyglyceryl isostearate, diglyceryl triisostearate, and neopentyl glycol dioctanoate.

[0038] Examples of fatty acids include isostearic acid and oleic acid. Examples of silicones include methylpolysiloxane, highly polymerized methylpolysiloxane, dimethiconol, amino-modified silicone, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, polyether-modified polysiloxane, polyoxyalkylene alkylmethylpolysiloxane / methylpolysiloxane copolymer, and alkoxy-modified polysiloxane.

[0039] If you want to provide a moisturizing effect and maintain manageability of the hair ends, it is more preferable that ingredient (F) is a plant oil, and among plant oils, it is even more preferable that ingredient (F) is at least one selected from the group consisting of plant squalane, almond oil, macadamia nut oil, olive oil, sesame oil, rice bran oil, camellia oil, apricot kernel oil, and jojoba seed oil, and almond oil is the most preferable because it excels in achieving both softness and moisturizing effects.

[0040] If you want to provide lasting moisture and softness, it is more preferable that component (F) is an ester oil, and among ester oils, it is even more preferable that component (F) is tri(caprylic / capric acid) glyceryl, ethylhexyl isononanoate, isononyl isononanoate, isostearyl isostearate, alkyl (C14-18) ethylhexanoate, or diethylhexyl succinate, and most preferably tri(caprylic / capric acid) glyceryl because it also provides excellent softness and smoothness.

[0041] If you want to provide smoothness and the ability to easily comb through the hair, the component (F) is more preferably a silicone oil, and among silicone oils, component (F) is even more preferably methylpolysiloxane, highly polymerized methylpolysiloxane, dimethiconol, or amino-modified silicone, and highly polymerized methylpolysiloxane is most preferred because it also provides excellent smoothness and manageability. Component (F) may be used alone or in combination of two or more components.

[0042] <Other ingredients> The hair cosmetic composition of the present invention may contain additives other than the above-mentioned components, such as moisturizers, herbal medicines, pH adjusters, chelating agents, preservatives, antioxidants, cooling agents, vitamins, proteins, fragrances, antibacterial agents, and pigments, to the extent that they do not impair the effects of the present invention.

[0043] The hair cosmetic composition of the present invention preferably contains substantially no cationic surfactants. "Substantially free of cationic surfactants" means that cationic surfactants present as impurities in each component may be included in the hair cosmetic composition, but not in a cationic manner. ,mosquito This means that thionic surfactants are intentionally not added. Specifically, "substantially free of cationic surfactants" means that the content of cationic surfactants in the hair cosmetic of this invention is... 、0 ~0.5 mass %in It means something.

[0044] <Manufacturing of hair cosmetics, etc.> The hair cosmetic composition of the present invention can be manufactured by stirring, mixing, heating, dissolving, dispersing, etc., using the above-mentioned components in the above-mentioned amounts, for example, by known methods, and the manufacturing method is not particularly limited. The manufacturing method may be carried out under heating conditions in order to uniformly mix each component. When manufacturing under heating conditions, for example, a temperature of 75 to 85°C can be given.

[0045] The hair cosmetic composition of the present invention can be manufactured by mixing the above-mentioned components in the above-mentioned proportions.

[0046] [Dosage form] The dosage form of the hair cosmetic of the present invention is preferably an emulsion, and more preferably a hair milk.

[0047] The appearance of the hair cosmetic composition of the present invention may be transparent or opaque, but an opaque emulsion is preferred. The emulsion may be W / O type, O / W type, or a multiple emulsion, but the O / W type is preferred because it is easy to apply uniformly to the hair.

[0048] The hair cosmetic composition of the present invention can also be used as a spray composition by using it together with a propellant.

[0049] [Application] The hair cosmetic of the present invention is preferably a leave-in treatment. The hair cosmetic of the present invention can be used by applying it to wet hair after towel-drying, or to dry hair, etc. The hair cosmetic of the present invention is preferable to be applied to damp hair after towel-drying, as it increases the moisture content of the hair. [Examples]

[0050] The present invention will now be described in more detail with reference to examples, but the present invention is not limited thereto.

[0051] [Examples 1-91, Comparative Examples 1-19] In the examples and comparative examples, the commercially available products listed in Table 1 were used.

[0052] [Table 1]

[0053] The values ​​in Tables 3-9 represent the mass percentage of each component when the hair cosmetic is considered to be 100% by mass, and the values ​​shown are converted to pure content. Hair cosmetic products were manufactured by mixing each component according to the formulations shown in Tables 3-9, and the samples were evaluated using the following methods.

[0054] [Evaluation Method] Of the evaluation items (1) to (13), (1) and (2) evaluated the physical properties of the sample. For (2) to (13), 10 professional panelists (hairdressers) each performed a sensory evaluation according to the evaluation criteria for each item. For (3) to (13), the evaluation was performed using hair bundles that had undergone the following damage treatments in order to reproduce the damage to the hair of an average person.

[0055] (Damage processing) Hair bundles (approximately 30 cm long, 10 g of human hair) (product name BS-B3A, manufactured by Beaulux Co., Ltd.) were immersed in a damage treatment aqueous solution prepared according to the proportions listed in Table 2 at 60°C for 10 minutes to induce damage. Afterwards, the hair bundles were removed from the damage treatment aqueous solution, rinsed with water, and dried.

[0056] [Table 2]

[0057] Damaged hair strands were washed with 1g of Sherpa Design Supplement D-1 Shampoo (manufactured by Arimino Co., Ltd.) and then rinsed with water. Next, I applied 1g of Sherpa Design Supplement D-1 Treatment (manufactured by Arimino Co., Ltd.), rinsed it thoroughly with water, lightly squeezed out the excess water, and then towel-dried it.

[0058] After towel-drying, 0.5g of the sample was applied to a hair strand and evaluations (3) and (4) were performed. Then, after drying with a hairdryer, evaluations (5) to (13) were performed. The average of the evaluation scores from 10 people was calculated for each item, and the evaluations were made as follows. ◎: The average rating from the 10 professional panelists (hairdressers) is 3.5 points or higher. ○: The average evaluation score from the 10 professional panelists (hairdressers) is between 2.5 and 3.5 points. △: The average rating from the 10 professional panelists (hairdressers) is between 1.5 and 2.5 points. ×: The average rating from the 10 professional panelists (hairdressers) is less than 1.5 points.

[0059] [Evaluation items and evaluation criteria] (1) Formulation stability The sample was filled into 100 mL PET containers at a rate of 90 g each, and then stored at 45°C and 25°C for 30 days. The emulsification state of the sample after storage was visually inspected and evaluated. ◎: No separation or aggregation after storage at 45℃ for 30 days. ○: No separation or aggregation after storage at 25°C for 30 days. △: After storage at 25°C for 30 days, separation or aggregation may occur. ×: There are aggregates that separate immediately after manufacturing.

[0060] (2) Spread of the agent A 0.5g sample was placed in the palm of the hand, and its spreadability was evaluated by touch. 4 points: Very good stretch 3 points: Good stretch 2 points: Slightly poor stretch 1 point: It is very poorly spreadable and does not spread easily.

[0061] (3) Adhesion to hair during application The ease with which the sample blended into the hair after towel-drying was evaluated by touch. 4 points: Very easy to get used to 3 points: Relatively easy to get used to 2 points: Difficult to get used to 1 point: Very difficult to get used to

[0062] (4) Stickiness on hands after application The stickiness of the hands after applying the sample to the hair strands was evaluated by touch. 4 points: Not slimy at all 3 points: Almost no stickiness 2 points: Slightly slimy 1 point: It's slimy.

[0063] (5) Greasy hair The stickiness of the hair surface after applying the sample to hair strands and drying them with a hairdryer was evaluated by touch. 4 points: Not sticky at all 3 points: Almost no stickiness 2 points: Slightly sticky 1 point: Very sticky

[0064] (6) Hair softness The softness of the hair after applying the sample to hair strands and drying them with a hairdryer was evaluated by touch. 4 points: Very soft 3 points: Soft 2 points: Hard 1 point: Very hard

[0065] (7) Hair smoothness The smoothness of the hair after applying the sample to hair strands and drying them with a hairdryer was evaluated by touch. 4 points: Very smooth 3 points: Smooth 2 points: Not very smooth 1 point: Not smooth

[0066] (8) Finger-friendly The sample was applied to hair strands, and the hair's manageability was evaluated by touch after drying with a hairdryer. 4 points: Very smooth to the touch. 3 points: Smooth to the touch. 2 points: Slightly difficult to run your fingers through. 1 point: Poor grip

[0067] (9) Hair ends stay together The sample was applied to hair strands, and the manageability of the hair ends after drying with a hairdryer was evaluated by touch and visual inspection. 4 points: Very well put together. 3 points: Well put together. 2 points: Somewhat disorganized 1 point: It's completely disorganized.

[0068] (10) Moisturizing effect on hair The moisture level of the hair after applying the sample to hair strands and drying them with a hairdryer was evaluated by touch. 4 points: Very moist 3 points: Moist. 2 points: Not quite moist enough 1 point: Not moist at all

[0069] (11) Durability of hair softness The sample was applied to hair strands, dried with a hairdryer, and then left for 5 hours at 25°C and 50% humidity. The softness of the hair after the waiting period was evaluated by touch. 4 points: Very soft 3 points: Soft 2 points: Hard 1 point: Very hard

[0070] (12) Durability of smoothness The sample was applied to hair strands, dried with a hairdryer, and then left for 5 hours at 25°C and 50% humidity. The manageability of the hair after the waiting period was evaluated by touch. 4 points: Very smooth to the touch. 3 points: Smooth to the touch. 2 points: Slightly difficult to run your fingers through. 1 point: Poor grip

[0071] (13) The longevity of the hair ends staying together The sample was applied to hair strands, dried with a hairdryer, and then left for 5 hours at 25°C and 50% humidity. The manageability of the hair ends after the waiting period was evaluated by touch and visual inspection. 4 points: Very well put together. 3 points: Well put together. 2 points: Somewhat disorganized 1 point: It's completely disorganized.

[0072] [Table 3]

[0073] [Table 4]

[0074] [Table 5]

[0075] [Table 6]

[0076] [Table 7]

[0077] [Table 8]

[0078] [Table 9]

[0079] The hair cosmetic products manufactured in Examples 1 to 91 showed good results in evaluation items (1) to (13). Example 91 showed particularly good results. The present invention demonstrates that, even without the inclusion of cationic surfactants, the hair cosmetic can provide softness to the hair and also offers excellent manageability, moisture, manageability, and smoothness.

[0080] The hair cosmetics produced in Comparative Examples 1 and 3 had less dialkyl carbonate (A), which has 8 carbon atoms in the alkyl group, than the specified amount, resulting in poor hair softness, manageability, moisture, and smoothness.

[0081] The hair cosmetic formulations produced in Comparative Examples 2 and 4 had poor formulation stability because they contained more dialkyl carbonate (A), which has 8 carbon atoms in the alkyl group, than the specified amount, causing separation immediately after production. The hair cosmetic produced in Comparative Example 5 lacked a dialkyl carbonate with eight carbon atoms in the alkyl group, resulting in poor hair softness, smoothness, stickiness, and manageability.

[0082] The hair cosmetics produced in Comparative Examples 6, 8, and 10 had less than the specified amount of higher alcohol (B) with 10 to 28 carbon atoms, resulting in poor hair softness, manageability, moisture, and smoothness.

[0083] The hair cosmetic formulations produced in Comparative Examples 7, 9, and 11 had poor formulation stability because the higher alcohol (B) with 10 to 28 carbon atoms was present in a higher amount than specified, preventing uniform mixing of each component. The hair cosmetic formulations produced in Comparative Examples 12, 14, 16, and 18 had poor formulation stability because the amount of emulsifier (C) was less than the specified amount, causing separation immediately after production.

[0084] The hair cosmetics produced in Comparative Examples 13, 15, 17, and 19 had poor hair softness, smoothness, stickiness, manageability, and moisturizing properties because they contained more emulsifier (C) than specified.

Claims

1. The compound comprises 0.5 to 50% by mass of dialkyl carbonate (A) having 8 carbon atoms in the alkyl group, 0.3 to 30% by mass of higher alcohol (B) having 10 to 28 carbon atoms, 0.03 to 10% by mass of at least one emulsifier (C) selected from the group consisting of anionic thickeners, nonionic thickeners, and nonionic surfactants, water (D), 0.5 to 20% by mass of dimer dilinoleate ester (E), and 2 to 10% by mass of almond oil as a liquid oil (F) at 25°C. A hair cosmetic product that is substantially free of cationic surfactants.

2. The hair cosmetic composition according to claim 1, wherein the dialkyl carbonate (A) having eight carbon atoms in the alkyl group is at least one selected from the group consisting of dicaprylyl carbonate and diethylhexyl carbonate.

3. The hair cosmetic composition according to claim 1 or 2, wherein the carbon-10 to carbon-28 higher alcohol (B) is at least one selected from the group consisting of myristyl alcohol, lauryl alcohol, and cetanol.

4. The hair cosmetic composition according to any one of claims 1 to 3, wherein the emulsifier (C) is at least one selected from the group consisting of (acryloyldimethyltaurate ammonium / VP) copolymer, carboxyvinyl polymer, hydroxyethylcellulose, and glyceryl stearate.

5. A hair cosmetic according to any one of claims 1 to 4, which is a leave-in treatment.

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