Cosmetic composition

Abstract

Provided is a cosmetic composition having an enhanced effect for improving UV absorption capacity at least in the UVA region through UV irradiation or sunlight irradiation.　This cosmetic composition contains a polar oil and a compound I having a structure represented by formula (I), the compound I being contained in an amount of 0.01-50 parts by mass relative to a total of 100 parts by mass of the polar oil and the compound I.　(In the formula, -OA represents an alkoxy group.)

Description

Cosmetic composition

[0001] The present invention relates to a cosmetic composition.

[0002] Protecting skin from UV rays is an important issue in skin care and body care. Not only mid-wavelength UV rays (UVB region: wavelength 290-320 nm), which are known to cause sunburn and inflammation, but also long-wavelength UV rays (UVA region: wavelength 320-400 nm), are known to have effects on the skin (such as photoaging).

[0003] Conventional cosmetics for UV protection often contain 2-ethylhexyl p-methoxycinnamate as an ultraviolet absorber. Although 2-ethylhexyl p-methoxycinnamate has the effect of absorbing ultraviolet rays in the UVB region, there is a demand for ultraviolet absorbers with better ultraviolet absorption ability in the UVA region.

[0004] In contrast to this, the ultraviolet absorber disclosed in Patent Document 1 has an ability to absorb both UVA and UVB regions, has an ultraviolet suppression effect over a wide range of wavelengths, and has a previously unseen property of increasing its ultraviolet absorption ability in the UVA and UVB regions with the passage of time during ultraviolet irradiation.

[0005] More specifically, the ultraviolet absorber of Patent Document 1 is represented by the general formula I: (wherein -OA represents an alkoxy group) as an active ingredient.

[0006] International Publication No. 2009 / 041098

[0007] In Patent Document 1, the compound represented by the above general formula I was blended directly into an ointment to examine its ultraviolet absorbing ability. As a result, it was found that the ultraviolet absorbing ability in the UVA and UVB regions of the ointment containing the compound represented by general formula I increased with increasing ultraviolet irradiation time.

[0008] However, when the compound represented by the above general formula I was blended into a sunscreen emulsion and its ultraviolet absorbing ability was examined, the ultraviolet absorbing ability did not decrease with increasing irradiation time, but no significant increase was observed either.

[0009] The present invention aims to improve the above-mentioned circumstances, and its object is to provide a cosmetic composition that has a significantly improved ultraviolet absorption ability at least in the UVA region as the exposure time to ultraviolet light or sunlight increases.

[0010] In the present invention, the degree of increase in the effect of improving ultraviolet absorption ability in at least one of the UVA region and the UVB region by ultraviolet irradiation or sunlight irradiation can be evaluated by the ratio of ultraviolet absorbance after irradiation to ultraviolet absorbance before irradiation (ultraviolet absorbance after irradiation / ultraviolet absorbance before irradiation).

[0011] The present invention that achieves the above object is as follows.

[0012] Aspect 1: A cosmetic composition comprising a polar oil and a compound I having the structure of the following formula (I): (wherein -OA represents an alkoxy group) A cosmetic composition in which the compound I is present in an amount of 0.01 parts by mass or more and 50 parts by mass or less, relative to 100 parts by mass of the total of the polar oil and the compound I. <Aspect 2> The composition according to aspect 1, in which the compound I is at least partially dissolved. <Aspect 3> The composition according to aspect 1 or 2, in which the polar oil is at least one selected from the group consisting of ester oils, ether oils, higher alcohols, and fatty acids. <Aspect 4> The composition according to any one of aspects 1 to 3, in which the polar oil is at least one selected from the group consisting of bisethoxydiglycol cyclohexane-1,4-dicarboxylate, phenoxyethyl caprylate, PPG-30-buteth-30, diisopropyl sebacate, neopentyl glycol diheptanoate, diethylhexyl succinate, and isononyl isononanoate. <Aspect 5> The composition according to Aspect 4, wherein the polar oil is at least one selected from the group consisting of bisethoxydiglycol cyclohexane-1,4-dicarboxylate, phenoxyethyl caprylate, and PPG-30 buteth-30. <Aspect 6> The composition according to any one of Aspects 1 to 5, wherein the content of the polar oil is 0.1% by mass or more and 99.99% by mass or less. <Aspect 7> The composition according to any one of Aspects 1 to 6, which is a sunscreen cosmetic composition.

[0013] According to the present invention, it is possible to provide a cosmetic composition that has an enhanced effect of improving ultraviolet absorption ability at least in the UVA region by irradiation with ultraviolet light or sunlight.

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the preferred embodiments. However, the present invention is not limited to the following embodiments, and various modifications can be made within the scope of the present invention.

[0015] <Cosmetic Composition> The cosmetic composition of the present invention (hereinafter also simply referred to as "the composition of the present invention") is a cosmetic composition comprising a polar oil and a compound I having a structure of the following formula (I): (wherein -OA represents an alkoxy group) The compound I is contained in an amount of 0.01 parts by mass or more and 50 parts by mass or less relative to 100 parts by mass of the total of the polar oil and the compound I.

[0016] The present inventors have found that by blending a polar oil and Compound I in a composition at a specific composition ratio, the effect of improving the ultraviolet absorption ability of ultraviolet radiation or sunlight irradiation can be further enhanced, at least in the UVA region.

[0017] Here, the specific composition ratio of the polar oil and compound I is more specifically as follows: In the composition of the present invention, with respect to 100 parts by mass of the total of the polar oil and compound I, compound I is 0.01 parts by mass or more, 0.05 parts by mass or more, 0.1 parts by mass or more, 0.5 parts by mass or more, 1.0 parts by mass or more, 1.5 parts by mass or more, 2.0 parts by mass or more, 2.5 parts by mass or more, 3.0 parts by mass or more, 3.5 parts by mass or more, 4.0 parts by mass or more, 4.5 parts by mass or more, 5.0 parts by mass or more. or more, 5.5 parts by mass or more, 6.0 parts by mass or more, 6.5 parts by mass or more, 7.0 parts by mass or more, 7.5 parts by mass or more, 8.0 parts by mass or more, 8.5 parts by mass or more, 9.0 parts by mass or more, 9.5 parts by mass or more, 10 parts by mass or more, 15 parts by mass or more, or 20 parts by mass or more, and may be 50 parts by mass or less, 45 parts by mass or less, 40 parts by mass or less, 35 parts by mass or less, 30 parts by mass or less, 25 parts by mass or less, 20 parts by mass or less, 15 parts by mass or less, or 10 parts by mass or less.

[0018] <Polar Oil> The composition of the present invention contains a polar oil. Here, "polar oil" refers to an oil with high polarity among oils usable in cosmetics other than silicone oil, for example, an oil with an IOB value of 0.10 or more, 0.11 or more, 0.12 or more, or 0.13 or more. The IOB value of the polar oil according to the present invention may be 2.0 or less, 1.5 or less, 1.0 or less, 0.50 or less, 0.45 or less, or 0.40 or less. The IOB value is an abbreviation for Inorganic / Organic Balance (inorganic / organic ratio), and is a value representing the ratio of inorganic value to organic value, and is an index indicating the degree of polarity of an organic compound. Specifically, the IOB value is expressed as IOB value = inorganic value / organic value. The "inorganic value" and "organic value" are set according to the type of atom or functional group, such as 20 for one carbon atom in a molecule and 100 for one hydroxyl group. The IOB value of an organic compound can be calculated by integrating the "inorganic values" and "organic values" of all atoms and functional groups in the organic compound (see, for example, "Organic Conceptual Diagram - Fundamentals and Applications" by Yoshio Koda, pp. 11-17, Sankyo Publishing, 1984).

[0019] In the present invention, the polar oil may be at least one selected from the group consisting of ester oil, ether oil, higher alcohol, and fatty acid, each having an IOB value of 0.10 or more. Among these, a polar oil capable of dissolving the above-mentioned compound I is particularly preferred.

[0020] More specifically, polar oils include, for example, polyglyceryl-10 laurate (IOB value = 1.60), PEG-20 sorbitan cocoate (IOB value = 1.49), bisethoxydiglycol cyclohexane-1,4-dicarboxylate (IOB value = 1.03), phenoxyethyl caprylate (IOB value = 0.29), PPG-30 buteth-30 (IOB value = 0.94), diisopropyl sebacate (IOB value = 0.4), neopentyl glycol diheptanoate (IOB value = 0.33), diethylhexyl succinate (IOB value = 0.32), isononanoic acid isononanoate (IOB value = 0.32), and methylparaben-2-ol (IOB value = 0.32). Nyl (IOB value = 0.2), Isopropyl myristate (IOB value = 0.18), Isoamyl laurate (IOB value = 0.18), PPG-2 myristyl propionate (IOB value = 0.26), Polyglyceryl-2 triisostearate (IOB value = 0.26), Polyglyceryl-2 diisostearate (IOB value = 0.41), Diethoxyethyl succinate (IOB value = 1.13), Dioctyl adipate (IOB value = 0.29), Diisopropyl adipate (IOB value = 0.55), Dioctyl sebacate (IOB value = 0.24), Di-PP adipate G-3 myristyl (IOB value = 0.55), PPG-14 butyl (IOB value = 0.41), PPG-15 stearyl (IOB value = 0.32), PPG-3 myristyl (IOB value = 0.35), octyl palmitate (IOB value = 0.13), isopropyl palmitate (IOB value = 0.16), butyl stearate (IOB value = 0.14), hexyl laurate (IOB value = 0.17), myristyl myristate (IOB value = 0.11), decyl oleate (IOB value = 0.11), isotridecyl isononanoate (IOB value = 0.15), ethylhexyl Cetyl phosphate (IOB value = 0.13), pentaerythrityl tetraethylhexanoate (IOB value = 0.35), dioctyl succinate (IOB value = 0.36), glycol distearate (IOB value = 0.16), glyceryl diisostearate (IOB value = 0.29), neopentyl glycol dicaprate (IOB value = 0.25), diisostearyl malate (IOB value = 0.28), trimethylolpropane triisostearate (IOB value = 0.16), glyceryl tri-2-ethylhexanoate (triethylhexanoin) (IOB value = 0.35),Trimethylolpropane trioctanoate (IOB value = 0.33), trimethylolpropane triisostearate (IOB value = 0.16), diisobutyl adipate (IOB value = 0.46), N-lauroyl-L-glutamic acid-2-octyldodecyl ester (IOB value = 0.29), 2-hexyldecyl adipate (IOB value = 0.16), ethylhexyl methoxycinnamate (IOB value = 0.28), 2-ethylhexyl palmitate (IOB value = 0.13), 2-ethylhexyl ethylhexanoate ( The alkyl ester may be at least one selected from the group consisting of alkyl esters (IOB value = 0.2), triisostearin (IOB value = 0.16), PPG-3 dipivalate (IOB value = 0.52), tri(caprylic / capric)glyceryl (IOB value = 0.33), alkyl benzoate (having 12 to 15 carbon atoms) (IOB value = 0.18), phenethyl benzoate (IOB value = 0.3), butyloctyl salicylate (IOB value = 0.43), and neopentyl glycol diheptanoate (IOB value = 0.33), but is not limited thereto.

[0021] Further, examples of ultraviolet absorbers that can be considered polar oils include ultraviolet absorbers with an IOB of 0.10 or more. Specific examples include organic ultraviolet absorbers such as ethylhexyl methoxycinnamate, octocrylene, polysilicone-15, t-butyl methoxydibenzoylmethane, ethylhexyl triazone, bisethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoyl hexyl benzoate, oxybenzone-3, methylene bisbenzotriazolyl tetramethylbutylphenol, homosalate, and ethylhexyl salicylate, but are not limited to these. These ultraviolet absorbers can be used alone or in combination of two or more.

[0022] Of the polar oils described above, from the viewpoint of easily dissolving Compound I according to the present invention, for example, the polar oil is preferably at least one selected from the group consisting of bisethoxydiglycol cyclohexane-1,4-dicarboxylate (IOB 1.03), phenoxyethyl caprylate (IOB 0.29), PPG-30 buteth-30 (IOB 0.94), diisopropyl sebacate (IOB 0.4), neopentyl glycol diheptanoate (IOB 0.33), diethylhexyl succinate (IOB 0.32), and isononyl isononanoate (IOB 0.2); and from the viewpoint of further exhibiting the effects of the present invention, for example, at least one selected from the group consisting of neopentyl glycol diheptanoate and diethylhexyl succinate is preferable. Furthermore, from the viewpoint of further enhancing the effect of improving the ultraviolet absorption ability due to ultraviolet irradiation or sunlight irradiation in both the UVA and UVB regions, the polar oil is preferably at least one selected from the group consisting of, for example, bisethoxydiglycol cyclohexane-1,4-dicarboxylate, phenoxyethyl caprylate, and PPG-30 buteth-30.

[0023] In the composition of the present invention, the content of the polar oil is not particularly limited, and may be, for example, 0.1% by mass or more, 0.5% by mass or more, 1.0% by mass or more, 1.5% by mass or more, 2.0% by mass or more, 2.5% by mass or more, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, 6.0% by mass or more, 6.5% by mass or more, 7.0% by mass or more, 7.5% by mass or more, 8.0% by mass or more, 8.5% by mass or more, 9.0% by mass or more, based on the entire cosmetic composition. , 9.5% by mass or more, 10% by mass or more, 15% by mass or more, 20% by mass or more, 25% by mass or more, 30% by mass or more, 35% by mass or more, 40% by mass or more, 45% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, 70% by mass or more, 75% by mass or more, 80% by mass or more, 85% by mass or more, or 90% by mass or more, and may be 99.99% by mass or less, 99% by mass or less, 98% by mass or less, 97% by mass or less, 96% by mass or less, or 95% by mass or less.

[0024] Compound I Compound I according to the present invention has the structure of the following formula: (wherein —OA represents an alkoxy group)

[0025] In formula (I), -OA represents an alkoxy group, and more specific examples include, but are not limited to, a methoxy group or an ethoxy group.

[0026] In the present invention, compound I may have the same structure as the compound represented by general formula I disclosed in Patent Document 1.

[0027] Furthermore, in the composition of the present invention, from the viewpoint of further exerting the effects of the present invention, it is preferred that Compound I is at least partially dissolved, particularly 50% by mass or more dissolved, more particularly 90% by mass or more dissolved, even more particularly 99% by mass or more dissolved, and most particularly 100% by mass dissolved.

[0028] In the composition of the present invention, the content of Compound I is not particularly limited, and may be, for example, 0.01% by mass or more, 0.05% by mass or more, 0.1% by mass or more, 0.5% by mass or more, 1.0% by mass or more, 1.5% by mass or more, 2.0% by mass or more, 2.5% by mass or more, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, 6.0% by mass or more, 6.5% by mass or more, 7.0% by mass or more, 7.5% by mass or more, 8.0% by mass or more, 8.5% by mass or more, 9.0% by mass or more, 9.5% by mass or more, or 10% by mass or more, relative to the entire cosmetic composition, and may be 50% by mass or less, 40% by mass or less, 30% by mass or less, 20% by mass or less, 10% by mass or less, or 8.0% by mass or less.

[0029] <Uses and Forms of the Composition of the Present Invention> The composition of the present invention can be suitably used as a cosmetic or a raw material thereof. That is, the present invention particularly provides a sunscreen cosmetic composition.

[0030] The form of the composition of the present invention is not particularly limited, and may be, for example, an oil-in-water emulsion cosmetic composition, a water-in-oil emulsion cosmetic composition, or an oil-based cosmetic composition based on an oil agent.

[0031] Other Components The cosmetic composition of the present invention may further contain any aqueous component or other component that can be used in the cosmetic field, in addition to the components described above. Examples of other components include, but are not limited to, oils other than the polar oils described above, ultraviolet scattering agent particles, ultraviolet absorbers, surfactants, moisturizers, sequestering agents, natural and synthetic polymers, water-soluble and oil-soluble polymers, various extracts, coloring agents such as organic dyes, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, cooling agents, antiperspirants, disinfectants, skin activators, other drugs, and various powders.

[0032] Other components will be described below as examples, but the present invention is not limited to these.

[0033] (Oils other than polar oils) The composition of the present invention may further contain oils other than the above-mentioned polar oils, as long as the effects of the present invention are not impaired. In this case, relative to 100 parts by mass of the total of the polar oil and the oils other than polar oils, the oils other than polar oils may be 90 parts by mass or less, 80 parts by mass or less, 70 parts by mass or less, 60 parts by mass or less, 50 parts by mass or less, 40 parts by mass or less, 30 parts by mass or less, or 20 parts by mass or less, or may be 0.1 parts by mass or more, 0.5 parts by mass or more, 1.0 parts by mass or more, 5.0 parts by mass or more, or 10 parts by mass or more.

[0034] In the present invention, examples of oils other than polar oils include, but are not limited to, silicone oils and hydrocarbon oils.

[0035] (i) Silicone oil Silicone oil refers to oils that can be used in cosmetics and have a main skeleton based on siloxane bonds. Note that "substances that have a main skeleton based on siloxane bonds" and that can also be used as the above-mentioned "ultraviolet absorbers" are excluded from the definition of "silicone oil" here.

[0036] In the present invention, the silicone oil may be a volatile silicone oil or a non-volatile silicone oil.

[0037] In the present invention, the boiling point at 1 atmosphere (101.325 kPa) can be used as an indicator of "volatility." From the viewpoint of dispersing the ultraviolet scattering agent well, this boiling point is preferably 250°C or less, 240°C or less, or 230°C or less, and is also preferably 80°C or more, 100°C or more, 120°C or more, 150°C or more, or 160°C or more. In addition, in the present disclosure, "non-volatile" refers to a substance that exhibits a volatile content of 5% or less when a sample is placed in a sufficiently large flat-bottomed dish and left at 105°C for 3 hours.

[0038] The silicone oil may be a non-cyclic silicone oil (i.e., a chain silicone oil) or a cyclic silicone oil.

[0039] Specific examples of silicone oils include, but are not limited to, chain silicone oils such as polydimethylsiloxane (dimethicone), methylphenylpolysiloxane, and methylhydrogenpolysiloxane; cyclic silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; and mixtures of two or more thereof.

[0040] (ii) Hydrocarbon Oil In the present invention, the hydrocarbon oil refers to a hydrocarbon oil other than the above-mentioned polar oils.

[0041] The hydrocarbon oil may be a volatile hydrocarbon oil or a non-volatile hydrocarbon oil.

[0042] Specific examples of hydrocarbon oils include, but are not limited to, decane, dodecane, isododecane, isohexadecane, liquid paraffin, squalane, squalene, paraffin, and mixtures of two or more thereof.

[0043] <Ultraviolet Scattering Agent Particles> The composition of the present invention may further contain ultraviolet scattering agent particles, for example, from the viewpoint of improving the ultraviolet protection effect.

[0044] The ultraviolet scattering agent particles are not particularly limited, and may be, for example, at least one selected from the group consisting of titanium oxide, zinc oxide, iron oxide, and cerium oxide.

[0045] The ultraviolet scattering agent particles may be hydrophobized. Here, the hydrophobization treatment may be carried out using a known surface treatment agent for hydrophobization, and examples thereof include fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, oil treatment, N-acylated lysine treatment, polyacrylic acid treatment, metal soap treatment, amino acid treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, silane compound treatment, and silazane compound treatment. Among these treatments, from the viewpoint of dispersion stability and the like, treatment with silicone or silicone resin, treatment with silane compound or silazane compound, and metal soap treatment such as aluminum isostearate are preferred.

[0046] The average primary particle diameter of the ultraviolet scattering agent particles is not particularly limited and may be, for example, 5 nm or more, 10 nm or more, or 15 nm or more, or 200 nm or less, 100 nm or less, or 50 nm or less. The "average primary particle diameter" may be determined as the diameter of a circle equivalent to the projected area of ​​the primary particles in an SEM image.

[0047] The shape of the ultraviolet scattering agent particles is not particularly limited, and examples thereof include spherical, plate-like, rod-like, spindle-like, needle-like, and irregular shapes.

[0048] <Ultraviolet Absorber> The composition of the present invention may further contain an ultraviolet absorber, for example, from the viewpoint of improving the ultraviolet protection effect.

[0049] Here, the ultraviolet absorber is not particularly limited, and examples thereof include ultraviolet absorbers having a camphor group such as terephthalylidene dicamphorsulfonic acid, ultraviolet absorbers having a sulfonic acid group such as phenylbenzimidazole sulfonic acid, ultraviolet absorbers having a triazine group such as bisethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazone, ultraviolet absorbers having a cinnamic acid such as cresyl methoxycinnamate, ultraviolet absorbers having a silicone group such as methyl bis(trimethylsiloxy)silylisopentyl trimethoxycinnamate and drometrizole trisiloxane, ultraviolet absorbers having a carbonyl group such as t-butyl methoxydibenzoylmethane, benzophenone-3, and benzophenone-5, ultraviolet absorbers having a benzotriazole group such as methylene bisbenzotriazolyl tetramethylbutylphenol, and ultraviolet absorbers having an amino group such as diethylamino hydroxybenzoyl hexyl benzoate.

[0050] It should be noted that these listed ultraviolet absorbers are considered to be "polar oils" if they fall under the category of "polar oils" described above.

[0051] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

[0052] Comparative Example 1 and Examples 1 to 12 Compositions of Comparative Example 1 and Examples 1 to 6 were prepared based on the formulations in Table 1 below. Furthermore, compositions of Examples 7 to 12 were prepared based on the formulations in Table 2 below.

[0053] The compound I used was the compound represented by the following structural formula:

[0054] <Evaluation of the effect of improving ultraviolet absorption capacity by ultraviolet irradiation or sunlight irradiation> Each sample of the prepared composition of each Example and Comparative Example was applied to a PMMA plate, and the plate was irradiated with simulated sunlight using a device for irradiating simulated sunlight (Suntest XLS+ device manufactured by ATLAS) (hereinafter referred to as "Suntest"). Specifically, the Suntest was performed under the following conditions: irradiation time: 2 hours, surface temperature: 50°C, irradiation output: 3860 KJ / m ２

[0055] The ultraviolet absorption wavelength of the sample before and after the Suntest was measured.

[0056] The ultraviolet absorption wavelength of each sample in each example and comparative example changed before and after the Suntest. The absorbance of each sample at 360 nm (UVA region) before and after irradiation was calculated as the improvement rate of ultraviolet absorption ability due to sunlight irradiation (hereinafter also simply referred to as "improvement rate") according to the following formula: Improvement rate = (absorbance after irradiation / absorbance before irradiation) × 100%

[0057] The improvement rate of Comparative Example 1 was set to "1 (reference)," and the ratio of the improvement rates of each Example was calculated as the "relative improvement rate" (improvement rate of each Example / improvement rate of Comparative Example 1). The results are shown in Tables 1 and 2.

[0058] Furthermore, for each example and comparative example sample, whether or not there was an increase in absorption in the UVA region (wavelength 320-400 nm) of ultraviolet absorption wavelengths after Suntest was confirmed. Similarly, whether or not there was an increase in absorption in the UVB region (wavelength 290-320 nm) of ultraviolet absorption wavelengths after Suntest was confirmed. The respective results are shown in Tables 1 and 2.

[0059]

[0060]

[0061] As is clear from the results in Tables 1 and 2, compared to Comparative Example 1, all of the compositions of Examples 1 to 12 showed an increased effect of improving ultraviolet absorption ability at least in the UVA region.

Claims

1. A cosmetic composition comprising a polar oil and a compound I having the structure of the following formula (I), 【Chemical 1】 (wherein -OA represents an alkoxy group) wherein the compound I is from 0.01 part by mass to 50 parts by mass based on a total of 100 parts by mass of the polar oil and the compound I, a cosmetic composition.

2. The composition according to claim 1, wherein the compound I is at least partially in a dissolved state.

3. The composition according to claim 1, wherein the polar oil is at least one selected from the group consisting of an ester oil, an ether oil, a higher alcohol, and a fatty acid.

4. The composition according to claim 1, wherein the polar oil is at least one selected from the group consisting of bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate, phenoxyethyl caprylate, PPG-30 buteth-30, diisopropyl sebacate, neopentyl glycol diheptanoate, diethylhexyl succinate, and isononyl isononanoate.

5. The composition according to claim 4, wherein the polar oil is at least one selected from the group consisting of bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate, phenoxyethyl caprylate, and PPG-30 buteth-30.

6. The composition according to any one of claims 1 to 5, wherein the content of the polar oil is from 0.1% by mass to 99.99% by mass.

7. The composition according to any one of claims 1 to 5, which is a sunscreen cosmetic composition.

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