Cosmetic composition

Abstract

To provide a cosmetic composition in which a change in odor after long-term storage, particularly long-term storage at high temperature, is improved.SOLUTION: A cosmetic composition comprises or consists of (A) a first oil and / or a second oil, (B) an oil-soluble chamomile extract, and (C) bakuchiol, where the first oil has a carbon-carbon double bond, the second oil is a hydrocarbon oil having a branched structure, and, when the first oil is not included and the second oil is included, a content of the second oil is 5.0 pts.mass or more relative to 100 pts.mass of an oil-phase component.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] Many active ingredients are known to have whitening and wrinkle-reducing effects, but most are water-soluble, and only a few are oil-soluble and highly stable.

[0003] For example, an oil-soluble chamomile extract is known as one of the oil-soluble active ingredients.

[0004] More specifically, for example, Patent Document 1 discloses a whitening cosmetic containing the following components (A) and (B): (A) an oil-soluble chamomile extract, and (B) an ester of a carboxylic acid having 2 to 22 carbon atoms and an alcohol having 1 to 22 carbon atoms. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-051610 Summary of the Invention [Problem to be solved by the invention]

[0006] However, through intensive research by the present inventors, it has been found that when an oil-soluble chamomile extract is used in combination with a specific oil in a cosmetic composition, particularly when the oil-soluble chamomile extract is used in combination with a specific oil in a cosmetic composition and stored at high temperatures, there is a problem of the odor changing.

[0007] The present invention seeks to improve the above-mentioned circumstances, and its object is to provide a cosmetic composition that is improved in terms of odor change after long-term storage, particularly after long-term storage at high temperatures. [Means for solving the problem]

[0008] The present invention that achieves the above object is as follows.

[0009] <Aspect 1> (A) a first oil and / or a second oil; (B) an oil-soluble chamomile extract, and (C) Bakuchiol comprising or consisting of The first oil component has a carbon-carbon double bond, The second oil component is a hydrocarbon oil having a branched structure, and When the first oil component is not contained and the second oil component is contained, the content of the second oil component is 5.0 parts by mass or more per 100 parts by mass of the oil phase component. Cosmetic composition. <Aspect 2> A cosmetic composition according to Aspect 1, wherein the total content of the first oil component and the second oil component is 10 parts by mass or more per 100 parts by mass of the oil phase component. <Aspect 3> Aspect 3. The cosmetic composition according to aspect 1 or 2, wherein the first oil component comprises at least one selected from the group consisting of unsaturated fatty acid esters and sterol derivatives. <Aspect 4> A cosmetic composition according to Aspect 3, wherein the unsaturated fatty acid ester comprises at least one selected from the group consisting of jojoba seed oil, octyldodecyl erucate, argania spinosa kernel oil, and macadamia nut oil. <Aspect 5> Aspect 4. The cosmetic composition according to aspect 3, wherein the sterol derivative comprises at least one selected from the group consisting of phytosterol, a phytosterol derivative, and a cholesterol derivative. <Aspect 6> Aspect 6. The cosmetic composition according to any one of Aspects 3 to 5, wherein the sterol derivative comprises di(phytosteryl / octyldodecyl) lauroyl glutamate and / or phytosteryl macadamiate. <Aspect 7> Aspect 7. The cosmetic composition according to any one of Aspects 1 to 6, wherein the second oil component comprises squalane and / or hydrogenated polydecene. <Aspect 8> Aspect 8. The cosmetic composition according to any one of Aspects 1 to 7, wherein the content of the oil-soluble chamomile extract is 0.0004 to 5.0% by mass in terms of dry solid content. <Aspect 9> Aspect 9. The cosmetic composition according to any one of Aspects 1 to 8, wherein the bakuchiol content is 0.1 to 5.0% by mass. <Aspect 10> An oil-in-water emulsion cosmetic comprising the cosmetic composition according to any one of aspects 1 to 9. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a cosmetic composition that is improved in terms of odor change after long-term storage, particularly after long-term storage at high temperatures (for example, after storage at 70°C for one week). DETAILED DESCRIPTION OF THE INVENTION

[0011] 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.

[0012] <<Cosmetic Composition>> The cosmetic composition of the present invention (hereinafter also referred to simply as "the composition of the present invention") is (A) a first oil and / or a second oil; (B) an oil-soluble chamomile extract, and (C) Bakuchiol comprising or consisting of the first oil component has a carbon-carbon double bond, The second oil component is a hydrocarbon oil having a branched structure, and When the first oil component is not contained and the second oil component is contained, the content of the second oil component is 5.0 parts by mass or more per 100 parts by mass of the oil phase component. Cosmetic composition is.

[0013] Through intensive research by the present inventors, it was found that cosmetic compositions containing an oil-soluble chamomile extract in combination with specific oils (i.e., the above-mentioned first oil and / or second oil) have the problem of changing in odor or generating an unpleasant odor after being stored, for example, at 70°C for one week.

[0014] In response to this, the present inventors conducted further intensive research and discovered that the generation of such off-flavors can be suppressed by incorporating bakuchiol into a cosmetic composition. Without being limited by theory, the mechanism of this off-flavor generation and suppression is presumed to be as follows.

[0015] That is, since the first oil component has a carbon-carbon double bond, the site of the double bond is likely to be easily oxidized, and since the second oil component has a branched structure, the branched site is likely to be similarly easily oxidized. However, it was found that such oil components alone did not cause an oxidation chain reaction under high-temperature storage conditions (e.g., Reference Examples 2-2 and 2-4, which will be described later). On the other hand, it was found that when an oil-soluble chamomile extract was used in combination with these specific oil components, a change in odor occurred (e.g., Comparative Example 1-1, which will be described later). This is presumably because the spiroether compounds contained in the oil-soluble chamomile extract, in particular, have carbon-carbon double bonds and triple bonds, and therefore when used in combination with the easily oxidized first oil component and / or second oil component, a complex oxidation chain reaction is likely to occur, especially under high-temperature storage conditions. Therefore, we speculate that bakuchiol, because it contains a phenolic group, can capture highly active chain propagators (e.g., ROO· and R·) generated by the oxidation chain reaction, thereby stopping the oxidation chain reaction and suppressing the generation of unpleasant odors. In other words, we speculate that bakuchiol functions as an antioxidant and inhibits the oxidation reaction of the oil-soluble chamomile extract and the first and / or second oil components.

[0016] Each component that may be contained in the composition of the present invention will be described in detail below.

[0017] <Component (A)> The composition of the present invention comprises a first oil component and / or a second oil component as component (A). In the present invention, the terms "first oil component" and "second oil component" refer to different oil components, and more specifically, the "first oil component" is defined as an oil component having a carbon-carbon double bond, and the "second oil component" is defined as a hydrocarbon oil having a branched structure.

[0018] However, in the present invention, the definition of "second oil" is applied preferentially. Therefore, regardless of whether or not a carbon-carbon double bond is present, if the oil is a hydrocarbon oil having a branched structure, the oil is classified as a "second oil" as defined in the present invention. Furthermore, in the case of oils other than "hydrocarbon oils having a branched structure," if the oil has a carbon-carbon double bond, the oil is classified as a "first oil" as defined in the present invention.

[0019] In the composition of the present invention, the oil component may (I) contain the first oil component but not the second oil component, (II) contain the second oil component but not the first oil component, or (III) contain the first oil component and the second oil component. Of course, in any of the cases (I) to (III), the oil component may optionally further contain an oil component other than the first and second oil components.

[0020] In the present invention, the first oil component and the second oil component may each be liquid or solid at 25° C. In the latter case, it is preferable that the oil component in the composition of the present invention further contains another oil component that can dissolve the solid first oil component or the solid second oil component.

[0021] [First oil] In the present invention, the first oil component has carbon-carbon double bonds. The number of carbon-carbon double bonds in the first oil component is not particularly limited and may be, for example, 1 or more, 2 or more, 3 or more, 4 or more, or 5 or more, or 8 or less, 5 or less, 3 or less, or 2 or less.

[0022] In the present invention, more specifically, the first oil component can include, for example, at least one selected from the group consisting of unsaturated fatty acid esters and sterol derivatives.

[0023] The unsaturated fatty acid ester can include, for example, at least one selected from the group consisting of jojoba seed oil, octyldodecyl erucate, argania spinosa kernel oil, and macadamia nut oil.

[0024] In the present invention, the sterol derivative refers to a sterol-based oil component, particularly an ester, having a carbon-carbon double bond and a sterol skeleton.

[0025] In the present invention, the sterol derivative may include at least one selected from the group consisting of phytosterol, phytosterol derivatives, and cholesterol derivatives.

[0026] As the phytosterol derivative, an ester having a phytosterol (plant sterol) skeleton that can be used in cosmetics and pharmaceuticals is preferred, and examples thereof include phytosterol-based oils such as acylamino acid phytosterol / higher alcohol esters, dimer dilinoleic acid phytosterol / higher alcohol esters, and phytosterol fatty acid esters.

[0027] Examples of acylamino acid phytosterol / higher alcohol esters include di(phytosteryl / octyldodecyl) lauroyl glutamate, di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, and myristoylmethyl-β-alanine (phytosteryl / decyltetradecyl).

[0028] Examples of phytosterol / higher alcohol dimer dilinoleate esters include phytosteryl / behenyl dimer dilinoleate, phytosteryl / isostearyl / cetyl / stearyl / behenyl dimer dilinoleate, dimer dilinoleyl bis(behenyl / isostearyl / phytosteryl) dimer dilinoleate, and di(isostearyl / phytosteryl) dimer dilinoleate.

[0029] Examples of phytosterol fatty acid esters include phytosteryl macadamia nut fatty acid, phytosteryl lanolin fatty acid, phytosteryl stearate, phytosteryl isostearate, phytosteryl hydroxystearate, phytosteryl oleate, dihydrophytosteryl oleate, phytosteryl ricinoleate, phytosteryl nonanoate, phytosteryl rice bran oil fatty acid, phytosteryl palmitate, phytosteryl 2-ethylhexanoate, phytosteryl caprate, phytosteryl laurate, and phytosterol butyrate.

[0030] As the cholesterol derivative, an ester having a cholesterol skeleton that can be used in cosmetics and pharmaceuticals is preferred, and examples thereof include cholesterol-based oils selected from acylamino acid cholesterol / higher alcohol esters and cholesterol fatty acid esters.

[0031] Examples of acylamino acid cholesterol / higher alcohol esters include di(cholesteryl / behenyl / octyldodecyl) lauroyl glutamate, di(cholesteryl / octyldodecyl) lauroyl glutamate, and the like.

[0032] Examples of cholesterol fatty acid esters include macadamia nut fatty acid cholesteryl, cholesteryl hydroxystearate, lanolin fatty acid cholesteryl, branched fatty acid (C12-31) cholesteryl, cholesteryl stearate, cholesteryl isostearate, cholesteryl oleate, dihydrocholesteryl oleate, cholesteryl ricinoleate, and cholesteryl nonanoate.

[0033] Among the above, in the present invention, the sterol derivatives include di(phytosteryl / octyldodecyl) lauroyl glutamate, phytosteryl macadamiate, di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, myristoylmethyl-β-alanine (phytosteryl / decyltetradecyl), dimer dilinoleic acid (phytosteryl / behenyl), dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), dimer dilinoleic acid ... It is preferable that the composition contains at least one selected from lauroylbis(behenyl / isostearyl / phytosteryl), dimer dilinoleate di(isostearyl / phytosteryl), di(cholesteryl / behenyl / octyldodecyl) lauroyl glutamate, di(cholesteryl / octyldodecyl) lauroyl glutamate, and cholesteryl macadamiate, and it is more preferable that the composition contains di(phytosteryl / octyldodecyl) lauroyl glutamate and / or phytosteryl macadamiate.

[0034] In the present invention, when the first oil component is included, its content is not particularly limited, and may be, for example, 1.0 part by mass or more, 3.0 parts by mass or more, 5.0 parts by mass or more, 10 parts by mass or more, 15 parts by mass or more, 20 parts by mass or more, 30 parts by mass or more, 35 parts by mass or more, 40 parts by mass or more, 45 parts by mass or more, 50 parts by mass or more, 55 parts by mass or more, 60 parts by mass or more, 65 parts by mass or more, 70 parts by mass or more, 75 parts by mass or more, 80 parts by mass or more, 85 parts by mass or more, 90 parts by mass or more, or 95 parts by mass or more, relative to 100 parts by mass of the oil phase component, or 99 parts by mass or less, or 95 parts by mass or less.

[0035] In the present invention, an oil phase component is a component that can constitute an oil phase, and for example, the first oil, the second oil, the oil-soluble chamomile extract, and bakuchiol can all be oil phase components.

[0036] [Second oil] In the present invention, the second oil component is a hydrocarbon oil having a branched structure. Note that the hydrocarbon oil refers to an oil component consisting of carbon and hydrogen.

[0037] In the present invention, the second oil may more specifically include, for example, squalane and / or hydrogenated polydecene.

[0038] In the present invention, the squalane is not particularly limited, and may be, for example, squalane derived from shark liver oil, plant squalane made from extracted components such as olive oil, wheat germ oil, or rice bran oil, or so-called sugar squalane (registered trademark) derived from sugarcane.

[0039] In the composition of the present invention, when a second oil component is contained, its content is not particularly limited. For example, in the composition of the present invention, the content of the second oil component may be 1.0 part by mass or more, 3.0 parts by mass or more, 5.0 parts by mass or more, 10 parts by mass or more, 15 parts by mass or more, 20 parts by mass or more, 30 parts by mass or more, 35 parts by mass or more, 40 parts by mass or more, 45 parts by mass or more, 50 parts by mass or more, 55 parts by mass or more, 60 parts by mass or more, 65 parts by mass or more, 70 parts by mass or more, 75 parts by mass or more, 80 parts by mass or more, 85 parts by mass or more, 90 parts by mass or more, or 95 parts by mass or more, and may be 99 parts by mass or less, or 95 parts by mass or less, relative to 100 parts by mass of the oil phase component.

[0040] Furthermore, when the composition of the present invention does not contain a first oil component but does contain a second oil component, from the viewpoint of more significantly exhibiting the effects of the present invention, the content of the second oil component is 5.0 parts by mass or more per 100 parts by mass of the oil phase component, and is preferably 10 parts by mass or more, 15 parts by mass or more, 20 parts by mass or more, or 30 parts by mass or more.

[0041] Furthermore, in the composition of the present invention, the total content of the first oil component and the second oil component per 100 parts by mass of the oil phase component is not particularly limited, and may be, for example, 5.0 parts by mass or more, 10 parts by mass or more, 15 parts by mass or more, 20 parts by mass or more, 30 parts by mass or more, 35 parts by mass or more, 40 parts by mass or more, 45 parts by mass or more, 50 parts by mass or more, 55 parts by mass or more, 60 parts by mass or more, 65 parts by mass or more, 70 parts by mass or more, 75 parts by mass or more, 80 parts by mass or more, 85 parts by mass or more, 90 parts by mass or more, or 95 parts by mass or more, and may be 99 parts by mass or less, or 95 parts by mass or less. The "total content of the first oil component and the second oil component" referred to here may be any of (I) the total content when the first oil component is included but the second oil component is not included (i.e., when the content of the second oil component is 0 parts by mass), (II) the total content when the second oil component is included but the first oil component is not included (i.e., when the content of the first oil component is 0 parts by mass), or (III) the total content of both the first oil component and the second oil component when they are included.

[0042] <Component (B)> The composition of the present invention contains an oil-soluble chamomile extract as component (B).

[0043] Chamomile (Matricaria chamomilla L.) is a plant of the Asteraceae family, and can be broadly divided into two types: the German species and the Roman species.

[0044] An oil-soluble chamomile extract can be obtained by extracting chamomile flowers with an organic solvent or the like. The organic solvent used for the extraction is not particularly limited, and for example, an organic solvent having a solubility parameter (SP value) in the range of 15 to 21 can be used. More specifically, the organic solvent for extraction may include at least one selected from the group consisting of isopropyl myristate (SP value 17.0), neopentyl glycol dicaprate (SP value 17.7), liquid paraffin (SP value 16.4), and squalane (SP value 16.2). The organic solvent for extraction may also include at least one selected from the group consisting of castor oil, persic oil, soybean oil, and sunflower oil. According to one embodiment of the present invention, the oil-soluble chamomile extract can be obtained by extracting chamomile flowers with squalane.

[0045] The SP value mentioned above refers to a measure of compatibility between substances, and can be determined from the Hansen solubility parameter (HSP).

[0046] An oil-soluble chamomile extract can be produced, for example, by crushing dried chamomile flowers and then adding an organic solvent for extraction. The amount of organic solvent added is not particularly limited, and may be, for example, 1,000 parts by weight or more, 5,000 parts by weight or more, 10,000 parts by weight or more, or 20,000 parts by weight or more, or 500,000 parts by weight or less, 250,000 parts by weight or less, 100,000 parts by weight or less, or 50,000 parts by weight or less, per 100 parts by weight of dried chamomile flowers. The temperature during extraction is also not particularly limited, and may be, for example, 10°C or more, 20°C or more, 25°C or more, 30°C or more, or 40°C or more, or 90°C or less, 80°C or less, 70°C or less, 60°C or less, or 50°C or less. The temperature during extraction may be appropriately set depending on the type of organic solvent added. The extraction time is not particularly limited and may be, for example, 1 hour or more, 6 hours or more, 12 hours or more, or 24 hours or more, and may be 96 hours or less, 72 hours or less, 48 ​​hours or less, 36 hours or less, or 24 hours or less.

[0047] The oil-soluble chamomile extract may contain components such as chamazulene, umbelliferone, 7-methoxycoumarin, matricin, matricarin, taraxasterol, upeol, apiin, and spiroether compounds, which may have a structure represented by the following formula (1): [ka] The formula (1) may include both Z and E isomers.

[0048] In the present invention, the oil content of the spiroether compound in the oil-soluble chamomile extract is not particularly limited, and may be, for example, 10 ppm or more, 50 ppm or more, 100 ppm or more, 150 ppm or more, 200 ppm or more, 250 ppm or more, 300 ppm or more, or 360 ppm or more, and may be 500 ppm or less, 480 ppm or less, 450 ppm or less, 440 ppm or less, or 420 ppm or less.

[0049] The content of the oil-soluble chamomile extract in the composition of the present invention is not particularly limited, and the content of the oil-soluble chamomile extract relative to the total composition of the present invention, in terms of dry solid content, may be, for example, 0.0004% by mass or more, 0.0005% by mass or more, 0.0006% by mass or more, 0.0007% by mass or more, 0.0008% by mass or more, 0.0009% by mass or more, 0.001% by mass or more, 0.002% by mass or more, 0.003% by mass or more, 0.004% by mass or more, 0.005% by mass or more, 0.006% by mass or more, 0.007% by mass or more, 0.008% by mass or more, 0.009% by mass or more, 0.01% by mass or more, 0.02% by mass or more, 0.03% by mass or more, or 0.04% by mass or more. It may be 0.05% by mass or more, 0.06% by mass or more, 0.07% by mass or more, 0.08% by mass or more, 0.09% by mass or more, 0.10% by mass or more, 0.20% by mass or more, 0.30% by mass or more, 0.40% by mass or more, 0.50% by mass or more, 0.60% by mass or more, 0.70% by mass or more, 0.80% by mass or more, 0.90% by mass or more, or 1.0% by mass or more, and may be 5.0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, 2.0% by mass or less, 1.0% by mass or less, 0.5% by mass or less, 0.1% by mass or less, 0.05% by mass or less, or 0.01% by mass or less.

[0050] In the present invention, the dry solid content refers to the amount of solids obtained by drying the extract to remove the solvent, and if the amount of solvent in the extract is known, it refers to the amount remaining after removing the solvent.

[0051] In the composition of the present invention, the oil-soluble chamomile extract may be present in an amount, in terms of dry solid content, of 100 parts by mass of the total oil phase components, for example, 0.001 parts by mass or more, 0.002 parts by mass or more, 0.003 parts by mass or more, 0.004 parts by mass or more, 0.005 parts by mass or more, 0.006 parts by mass or more, 0.007 parts by mass or more, 0.008 parts by mass or more, 0.009 parts by mass or more, 0.01 parts by mass or more, 0.02 parts by mass or more, 0.03 parts by mass or more, 0.04 parts by mass or more, 0.05 parts by mass or more, 0.06 parts by mass or more, 0.07 parts by mass or more, 0.08 parts by mass or more, 0.09 parts by mass or more, 0.1 parts by mass or more, 0.2 parts by mass or more, 0.3 parts by mass or more. , 0.4 parts by mass or more, 0.5 parts by mass or more, 0.6 parts by mass or more, 0.7 parts by mass or more, 0.8 parts by mass or more, 0.9 parts by mass or more, or 1.0 parts by mass or more, or 1.0 parts by mass or less, 0.9 parts by mass or less, 0.8 parts by mass or less, 0.7 parts by mass or less, 0.6 parts by mass or less, 0.5 parts by mass or less, 0.4 parts by mass or less, 0.3 parts by mass or less, 0.2 parts by mass or less, 0.1 parts by mass or less, 0.09 parts by mass or less, 0.08 parts by mass or less, 0.07 parts by mass or less, 0.06 parts by mass or less, 0.05 parts by mass or less, 0.04 parts by mass or less, 0.03 parts by mass or less, 0.02 parts by mass or less, 0.01 parts by mass or less, or 0.005 parts by mass or less. In addition to the oil-soluble chamomile extract and bakuchiol, the oil phase component of the composition of the present invention may contain other oily components. Furthermore, depending on the type of composition of the present invention (e.g., an oily composition, an oil-in-water emulsion composition, a water-in-oil emulsion composition, etc.), the composition may be composed of an oil phase component, or may be composed of an oil phase component and an aqueous phase component.

[0052] The content of the oil-soluble chamomile extract in the composition of the present invention may be adjusted as appropriate depending on the type of cosmetic product to be produced (e.g., oil-based cosmetic product, emulsion cosmetic product, etc.) and the desired effect of the oil-soluble chamomile extract (e.g., cosmetic effect such as whitening, aroma effect such as fragrance, etc.).

[0053] <Component (C)> The compositions of the present invention contain bakuchiol as component (C).

[0054] Bakuchiol (4-[(1E,3S)-3-Ethenyl-3,7-dimethyl-1,6-octadien-1-yl]phenol; CAS number 10309-37-2) is a naturally occurring terpenophenolic compound, a type of meroterpene, and is an oily hydrophobic compound at room temperature. Bakuchiol has the following structure: [ka]

[0055] In the composition of the present invention, bakuchiol may be naturally derived or synthetic, and may also be obtained by extraction with an appropriate organic solvent from the seeds of the legume plant Psoralea corylifolia L.

[0056] In the composition of the present invention, the content of bakuchiol is not particularly limited, and may be, for example, 0.1% by mass or more, 0.2% by mass or more, 0.3% by mass or more, 0.4% by mass or more, 0.5% by mass or more, 0.6% by mass or more, 0.7% by mass or more, 0.8% by mass or more, 0.9% by mass or more, or 1.0% by mass or more, and may be 5.0% by mass or less, 4.5% by mass or less, 4.0% by mass or less, 3.5% by mass or less, 3.0% by mass or less, 2.5% by mass or less, 2.0% by mass or less, 1.5% by mass or less, or 1.0% by mass or less, relative to the entire composition.

[0057] In addition, the content of bakuchiol in the composition of the present invention may be appropriately adjusted according to the content of the oil-soluble chamomile extract contained in the composition of the present invention.For example, the content of bakuchiol may be 10 parts by mass or more, 50 parts by mass or more, 100 parts by mass or more, 200 parts by mass or more, or 10,000 parts by mass or less, 5,000 parts by mass or less, 1,000 parts by mass or less, 5 ... parts by mass or less, or 1 part by mass or less of the dry solid content of the oil-soluble chamomile extract.

[0058] <Other ingredients> The composition of the present invention may further contain other components to the extent that the effects of the present invention are not impaired. The selection of other components may be appropriately determined depending on the type of cosmetic product to be used. The content of other components may be appropriately adjusted depending on the type of cosmetic product to be used and the intended use of other components. The other components may be classified as oil phase components or aqueous phase components based on their respective types and properties.

[0059] Some other components will be described below as examples, but the present invention is not limited to these components.

[0060] (Other oils) The composition of the present invention may further contain an oil other than the first and second oils described above. The other oil may be the same as or different from the solvent used to extract the oil-soluble chamomile described above.

[0061] The other oils are not particularly limited, and examples thereof include hydrocarbon oils, ester oils, ether oils, silicone oils, fluorine oils, higher fatty acids, and higher alcohols.

[0062] Hydrocarbon oils include, but are not limited to, mineral oil, normal paraffin, and the like.

[0063] Examples of the ester oil include monoester oil, diester oil, triester oil, and tetraester oil. Examples of the monoester oil include monoesters of aliphatic or aromatic monocarboxylic or dicarboxylic acids having 2 to 24 carbon atoms, and specific examples thereof include cetyl 2-ethylhexanoate, cetyl octanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, 2-hexyldecyl myristate, isopropyl palmitate, palmitic acid, methyl 2-methyl-3-methyl-4-methyl-5-methyl-6-methyl-7-methyl-8-methyl-10-methyl-11-methyl-21-methyl-12-methyl-13-methyl-14-methyl-15-methyl-16-methyl-17-methyl-18-methyl-19-methyl-22-methyl-19-methyl-23-methyl-19-methyl-19-methyl-24-methyl-19-methyl-19-methyl-19-methyl-25-methyl-19-methyl-19-methyl-19-methyl-26-methyl-19-methyl-19-methyl-19-methyl-27-methyl-19-methyl-19-methyl-28-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-23-methyl-19-methyl-24-methyl-19-methyl-25-methyl-19-methyl-26-methyl-19-methyl-27-methyl-19-methyl-28-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-29-methyl-19-methyl-29-methyl- Examples of the alkyl acrylates include, but are not limited to, octyl cinnamate, 2-hexyldecyl palmitate, butyl stearate, isocetyl stearate, isocetyl isostearate, decyl oleate, isodecyl benzoate, octyl methoxycinnamate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, 2-ethylhexyl succinate, 2-hexyldecyl adipate, and alkyl benzoates (C12 to C15).

[0064] Examples of diester oils include diesters of dicarboxylic acids having 3 to 18 carbon atoms, and difatty acid esters of polyhydric alcohols. Specific examples include propylene glycol dicaprylate. , neopentyl glycol dicaprate, glycol distearate, propylene glycol diisostearate, glyceryl diisostearate, glyceryl monoisostearate monomyristate, glycerin di-2-heptylundecanoate, di-2-ethylhexyl succinate, diisopropyl sebacate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, diisobutyl adipate, di-2-heptylundecyl adipate, and di-2-ethylhexyl sebacate.

[0065] Triester oils include tri-fatty acid esters of trihydric or higher polyhydric alcohols, and specific examples include, but are not limited to, triethylhexanoin, glyceryl trimyristate, glyceryl triisopalmitate, glyceryl tri-2-heptylundecanoate, trimethylolpropane triethylhexanoate, trimethylolpropane trioctanoate, tri(caprylic / capric)glyceryl, glyceryl trioleate, glyceryl tri-2-ethylhexanoate, and glyceryl triisostearate.

[0066] Tetraester oils include tetra-fatty acid esters of tetrahydric or higher polyhydric alcohols, and specific examples include, but are not limited to, pentaerythritol tetra(behenate / benzoate / ethylhexanoate), pentaerythritol tetraethylhexanoate, pentaerythritol tetraoctanoate, and pentaerythritol tetra-2-ethylhexanoate.

[0067] Ether oils include dialkyl ethers, specifically including, but not limited to, dihexyl ether, dicaprylyl ether, and cetyl-1,3-dimethylbutyl ether.

[0068] Examples of silicone oils include, but are not limited to, methylpolysiloxane, crosslinked methylpolysiloxane, network methylpolysiloxane, dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, and higher alcohol-modified organopolysiloxane.

[0069] Fluorine oils include, but are not limited to, fluoropolyethers and perfluoroalkyl ether silicones.

[0070] Examples of higher fatty acids include fatty acids having 12 to 24 carbon atoms, and specific examples include linear saturated fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, and behenic acid; linear unsaturated fatty acids such as palmitoleic acid, oleic acid, linoleic acid, linolenic acid, seicosenoic acid, and erucic acid; and branched saturated fatty acids such as isomyristic acid, isopalmitic acid, and isostearic acid, but are not limited to these.

[0071] Examples of higher alcohols include alcohols having 12 to 24 carbon atoms, and specific examples include linear saturated alcohols such as lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, cetyl alcohol, batyl alcohol, chimyl alcohol, behenyl alcohol, decyltetradecanol, and octyldodecanol, and branched saturated alcohols such as isostearyl alcohol, but are not limited to these.

[0072] When other oils are contained in the composition of the present invention, their content is not particularly limited, and may be, for example, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more, 5.0% by mass or more, 10% by mass or more, 15% by mass or more, or 20% by mass or more, and may be 90% by mass or less, 80% by mass or less, 70% by mass or less, 60% by mass or less, 50% by mass or less, 40% by mass or less, 30% by mass or less, 20% by mass or less, or 10% by mass or less, relative to the entire composition.

[0073] (water) The composition of the present invention may further comprise water.

[0074] The water is not particularly limited and may be, for example, water used in cosmetics and quasi-drugs, such as ion-exchanged water, distilled water, ultrapure water, and tap water.

[0075] When the composition of the present invention contains water, its content is not particularly limited and may be, for example, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more, 5.0% by mass or more, 10% by mass or more, 15% by mass or more, 20% by mass or more, or 30% by mass or more, and may be 99% by mass or less, 90% by mass or less, 85% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, 65% by mass or less, 60% by mass or less, 55% by mass or less, 50% by mass or less, 45% by mass or less, 40% by mass or less, 35% by mass or less, 30% by mass or less, 20% by mass or less, or 10% by mass or less, relative to the entire composition.

[0076] (surfactant) The compositions of the present invention may further comprise a surfactant.

[0077] Examples of surfactants include, but are not limited to, nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants, etc. These surfactants may be used singly or in combination of two or more.

[0078] When a surfactant is contained in the composition of the present invention, its content is not particularly limited and may be, for example, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more, or 5.0% by mass or more, and may be 20% by mass or less, 15% by mass or less, 10% by mass or less, or 8.0% by mass or less, relative to the total mass of the composition.

[0079] (moisturizer) The compositions of the present invention may further comprise a moisturizer.

[0080] Examples of humectants include, but are not limited to, glycerin, butylene glycol, dipropylene glycol, PEG-8 (polyethylene glycol), trimethylglycine, glucose, sorbitol, and maltitol.

[0081] When a humectant is contained in the composition of the present invention, the content thereof is not particularly limited and may be, for example, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more, 5.0% by mass or more, 10% by mass or more, 15% by mass or more, or 20% by mass or more, and may be 99% by mass or less, 90% by mass or less, 85% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, 65% by mass or less, 60% by mass or less, 55% by mass or less, 50% by mass or less, 45% by mass or less, 40% by mass or less, 35% by mass or less, 30% by mass or less, 20% by mass or less, or 10% by mass or less, relative to the entire composition.

[0082] (Other optional ingredients) In addition to the above-mentioned components, the composition of the present invention may contain, for example, surfactant aids, powders, other aqueous components, antioxidants, alcohol, cosmetic ingredients, lecithin, glycolipids, plant extracts, preservatives, fragrances, pH adjusters, pigments, etc., within the scope of not impairing the effects of the present invention.

[0083] Cosmetics The present invention can provide a cosmetic comprising the composition of the present invention. More specifically, the cosmetic of the present invention may be, for example, an oil-based cosmetic comprising the composition of the present invention, or may be an oil-in-water emulsion cosmetic or a water-in-oil emulsion cosmetic comprising the composition of the present invention. Of these, the cosmetic of the present invention is preferably an oil-in-water emulsion cosmetic, for example, from the viewpoint of providing a better feel and therefore being more suitable for use as a skin care cosmetic.

[0084] In the present invention, the term "oil-based cosmetic" refers to a cosmetic that is a single-phase oil phase. An oil-based cosmetic contains an oil phase and is substantially free of water, which is usually present separately from the oil phase.

[0085] In the present invention, the oil-in-water emulsion cosmetic and the water-in-oil emulsion cosmetic may each be emulsified using a surfactant, or may be a two-layer composition without using a surfactant. Here, a two-layer composition refers to a composition that can be obtained as an emulsion composition by shaking and / or mixing, and that stably separates into two layers at the oil-water interface after a certain period of time has passed.

[0086] Furthermore, since the composition of the present invention contains an oil-soluble chamomile extract and bakuchiol, the present invention may also provide a whitening cosmetic comprising the composition of the present invention.

[0087] The cosmetic of the present invention can be produced according to a conventional method depending on the type of cosmetic.

[0088] The formulation of the composition of the present invention and the cosmetic of the present invention is not particularly limited, and may be, for example, a solid, semi-solid, solid paste, stick, emulsion, liquid, gel, sherbet, cream, ointment, or paste. [Example]

[0089] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these. Unless otherwise specified, the blending amounts in the tables are shown in "parts by mass."

[0090] <<Examples 1-1 to 1-4>> Based on the formulations in Table 1, oily cosmetic compositions of Examples 1-1 to 1-4, Comparative Examples 1-1 to 1-4, and Reference Examples 1-1 to 1-4 were prepared.

[0091] The prepared composition samples were evaluated by a specialist panel for changes in odor (smell) after storage at high temperatures. The evaluation results are shown in Table 1.

[0092] More specifically, one composition sample was divided into equal amounts, and the odor after storage at 0°C for one week (referred to as the "reference product") was compared with the odor after storage at 70°C for one week, and the odor was evaluated based on the following criteria: (Evaluation criteria) "A": No change in odor compared to the reference product; "B": Slight change in odor was detected compared to the standard product; "C": A clear change in odor was detected compared to the standard product; "D": A strong change in odor was noticed compared to the standard product.

[0093] The condition "storage at 70°C for one week" can be considered to be set as an accelerated test condition using the Arrhenius equation, and can also be considered as a storage condition for long-term storage at room temperature. Therefore, the test results for "storage at 70°C for one week" can be equivalent to the results of a durability test at room temperature for a long period (e.g., one week or more, one month or more, six months or more, or one year or more).

[0094] [Table 1]

[0095] As is clear from the results in Table 1, the evaluation of Comparative Examples 1-1 to 1-4 revealed that there was a change in odor after high-temperature storage.

[0096] On the other hand, the evaluation of Examples 1-1 to 1-4 revealed that the change in odor was suppressed compared to Comparative Examples 1-1 to 1-4.

[0097] 《Reference examples 2-1~2-4》 Oil-based cosmetic compositions of Reference Examples 2-1 to 2-4 were prepared based on the formulations in Table 2. Changes in odor (smell) after high-temperature storage were evaluated in the same manner as above. The evaluation results are shown in Table 2.

[0098] [Table 2]

[0099] As is clear from the results in Table 2, when oils other than the first and second oils were used, there was no change in odor after high-temperature storage.

[0100] <<Examples 3-1 and 3-2>> Oil-based cosmetic compositions of Examples 3-1 and 3-2, Comparative Examples 3-1 and 3-2, and Reference Examples 3-1 and 3-2 were prepared based on the formulations in Table 3. Changes in odor (smell) after high-temperature storage were evaluated in the same manner as above. The evaluation results are shown in Table 3.

[0101] [Table 3]

[0102] As is clear from the results in Table 3, the evaluation of Comparative Examples 3-1 and 3-2 revealed that there was a change in odor after high-temperature storage.

[0103] On the other hand, the evaluation of Examples 3-1 and 3-2 revealed that the change in odor was suppressed compared to Comparative Examples 3-1 and 3-2.

[0104] Example 4-1 to 4-3 Oil-based cosmetic compositions of Examples 4-1 to 4-3, Comparative Examples 4-1 to 4-3, and Reference Examples 4-1 to 4-3 were prepared based on the formulations in Table 4. Changes in odor (smell) after high-temperature storage were evaluated in the same manner as above. The evaluation results are shown in Table 4.

[0105] [Table 4]

[0106] As is clear from the results in Table 4, the evaluation of Comparative Examples 4-1 to 4-3 revealed that there was a change in odor after high-temperature storage.

[0107] On the other hand, the evaluation of Examples 4-1 to 4-3 revealed that the change in odor was suppressed compared to Comparative Examples 4-1 to 4-3.

[0108] <<Reference Examples 5-1 and 5-2>> Oil-based cosmetic compositions of Reference Examples 5-1 and 5-2 were prepared based on the formulations in Table 5. Changes in odor (smell) after high-temperature storage were evaluated in the same manner as above. The evaluation results are shown in Table 5.

[0109] [Table 5]

[0110] As is clear from the results in Table 5, when oils other than the first and second oils were used, there was no change in odor after high-temperature storage.

[0111] <<Examples 6-1 to 6-3>> Oil-in-water emulsion cosmetic compositions of Example 6-1, Comparative Example 6-1, and Reference Examples 6-1 to 6-3 were prepared based on the formulations in Table 6. Changes in odor (smell) after high-temperature storage were evaluated in the same manner as above. The evaluation results are shown in Table 6.

[0112] [Table 6]

[0113] As is clear from the results in Table 6, even in the case of the oil-in-water emulsion cosmetic composition, Example 6-1 showed less change in odor than Comparative Example 6-1.

Claims

1. (A) a first oil component and / or a second oil component; (B) an oil-soluble chamomile extract, and (C) Bakuchiol comprising or consisting of The first oil component has a carbon-carbon double bond, The second oil component is a hydrocarbon oil having a branched structure, and When the first oil component is not contained and the second oil component is contained, the content of the second oil component is 5.0 parts by mass or more per 100 parts by mass of the oil phase component. Cosmetic composition.

2. The cosmetic composition according to claim 1, wherein the total content of the first oil component and the second oil component is 5.0 parts by mass or more relative to 100 parts by mass of the oil phase component.

3. The cosmetic composition according to claim 1 , wherein the first oil component comprises at least one selected from the group consisting of unsaturated fatty acid esters and sterol derivatives.

4. The cosmetic composition according to claim 3, wherein the unsaturated fatty acid ester comprises at least one selected from the group consisting of jojoba seed oil, octyldodecyl erucate, argania spinosa kernel oil, and macadamia nut oil.

5. The cosmetic composition according to claim 3 , wherein the sterol derivative comprises at least one selected from the group consisting of phytosterol, a phytosterol derivative, and a cholesterol derivative.

6. The cosmetic composition according to claim 3, wherein the sterol derivative comprises di(phytosteryl / octyldodecyl) lauroyl glutamate and / or phytosteryl macadamiate.

7. The cosmetic composition according to claim 1 , wherein the second oil comprises squalane and / or hydrogenated polydecene.

8. 2. The cosmetic composition according to claim 1, wherein the content of the oil-soluble chamomile extract is 0.0004 to 5.0% by mass in terms of dry solid content.

9. The cosmetic composition according to claim 1, wherein the content of the bakuchiol is 0.1 to 5.0% by mass.

10. An oil-in-water emulsion cosmetic comprising the cosmetic composition according to any one of claims 1 to 9.

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