JP6918548B2 - Topical skin or cosmetics - Google Patents

Description

The present invention relates to a skin external preparation or cosmetic containing a polyunsaturated fatty acid having 16 to 22 carbon atoms, and more specifically, a polyunsaturated fatty acid having 16 to 22 carbon atoms, polyoxyethylene polyoxypropylene decyl. The present invention relates to an external preparation for skin or a cosmetic containing tetradecyl ether and water, having excellent emulsion stability over time and suppressing odor change over time.

Polyunsaturated fatty acids having 16 to 22 carbon atoms, such as linoleic acid and linolenic acid, are essential fatty acids that cannot be synthesized in vivo. These polyunsaturated fatty acids are constituents of intercellular lipid components that support the epidermal barrier function, and are known to moisturize the skin and contribute to the improvement of the barrier function. It is also conventionally known to be used as a whitening agent because it has an effect of suppressing melanin production (see Patent Documents 1 and 2). A wide variety of ingredients are known to have a whitening effect, but in recent years, it has been desired to provide safer external preparations for skin and cosmetics from the viewpoint of safety. Therefore, various attempts have been made to incorporate polyunsaturated fatty acids having 16 to 22 carbon atoms, which are components originally present in the skin, into cosmetics and apply them to the skin.

However, since the polyunsaturated fatty acid is an oil-soluble component, it is necessary to use an appropriate surfactant in combination when coexisting with an aqueous component. In particular, a composition containing a functionally effective amount of polyunsaturated fatty acid tends to aggregate during long-term storage because the polyunsaturated fatty acid tends to be oriented at the interface in a system in which an oily component is solubilized or dispersed. It was found that changes in turbidity and oil floating are likely to occur. In addition, since polyunsaturated fatty acids contain a plurality of unsaturated bonds in the molecule, there is a problem that the odor tends to change with time.

Therefore, various studies have been conducted to improve the stability over time, and an external preparation for skin containing polyunsaturated fatty acids having 18 to 22 carbon atoms and polyphenols having an ability to inhibit tyrosinase activity (see Patent Document 3). ), Polyunsaturated fatty acids with 18 to 22 carbon atoms, specific antioxidants, lecithin, and further, phosphates, phosphates, aliphatic oxypolybasic acids, salts or monoesters thereof and carboxyvinyls. There are cosmetics (see Patent Document 4) in which one or more compounds selected from polymers are combined.

Japanese Unexamined Patent Publication No. 63-284109 Japanese Unexamined Patent Publication No. 05-194176 Japanese Unexamined Patent Publication No. 05-271046 Japanese Unexamined Patent Publication No. 03-20205

However, the technique of Patent Document 3 has a problem that its effect is not sufficient in an environment where the oxidation of unsaturated bonds is likely to proceed, such as in the presence of water or in a high temperature, and an odor changes with time. Further, the technique of Patent Document 4 is a technique for stably blending linoleic acid, but when the blended component causes stickiness on the skin during use, or depending on the blended oil agent, creaming or dibutylhydroxy over time may occur. There was a problem in terms of stability over time, such as the precipitation of toluene.

As described above, although it contains polyunsaturated fatty acids having 16 to 22 carbon atoms, it can be emulsified with a small amount of surfactant, has high emulsification stability, and has suppressed odor deterioration over time. External preparations or cosmetics were required.

In view of this situation, the present inventors have conducted diligent studies to solve the above problems, and as a result, skin containing polyunsaturated fatty acids having 16 to 22 carbon atoms, polyoxyethylene polyoxypropylene decyltetradecyl ether, and water. In external preparations or cosmetics, polyoxyethylene polyoxypropylene decyltetradecyl ether is oriented toward the carbon chain of a polyunsaturated fatty acid having 16 to 22 carbon atoms and serves as a protective group, thereby acting as a protective group with 16 to 22 carbon atoms. Skin that has excellent emulsion stability even when the amount of polyoxyethylene polyoxypropylene decyltetradecyl ether with respect to polyunsaturated fatty acids is small, and can suppress the oxidation of unsaturated bonds that cause odor over time. They have found that an external preparation or a cosmetic can be obtained, and have completed the present invention.

That is, the present invention describes the following components (a) to (c);
(A) Polyunsaturated fatty acid having 16 to 22 carbon atoms (b) Polyoxyethylene polyoxypropylene decyltetradecyl ether (c) Containing water, content mass ratio (a) of component (a) and component (b) ) / (B) is 0.2 to 30, which provides an external preparation for skin or a cosmetic.

It also provides the external preparation for skin or cosmetics in which the component (a) is linoleic acid.

Further, the present invention provides the external preparation for skin or cosmetics in which the number of moles of polyoxyethylene added to the component (b) is 5 to 40 mol and the number of moles of polyoxypropylene added is 2 to 10 mol.

Further, the present skin external preparation or cosmetic having a viscosity at 25 ° C. of 1 to 15000 mPa · s is provided.

Further, as the component (d), the skin external preparation or cosmetic containing a polar oil having a monounsaturated fatty acid chain having 18 or more carbon atoms is provided.

Further, the present invention provides the above-mentioned external preparation for skin or cosmetic, wherein the component (d) is an ester oil liquid at 25 ° C., which is composed of a monounsaturated fatty acid having 18 or more carbon atoms and a monohydric alcohol.

The external preparation for skin or cosmetic of the present invention has excellent emulsion stability and suppresses odor change over time.

The polyunsaturated fatty acid having 16 to 22 carbon atoms of the component (a) used in the present invention has 16 to 22 carbon atoms having two or more unsaturated carbon bonds such as carbon double bonds and triple bonds in the molecule. It is a fatty acid. The component (a) includes, for example, polyunsaturated fatty acids having 18 carbon atoms, such as linoleic acid, α-linolenic acid, γ-linolenic acid, stearidonic acid, pinolenic acid, α-eleostaic acid, and β-eleo. Stearic acid, bosseopentaenoic acid, etc., and polyunsaturated fatty acids with 20 carbon atoms, eicosadienoic acid, eicosatrienoic acid, eicosatetraenoic acid, eicosapentaenoic acid, dihomo-γ linolenic acid, arachidonic acid, Meadic acid and the like, which are polyunsaturated fatty acids having 22 carbon atoms, such as docosadienoic acid, adrenoic acid, sardine acid and docosahexaenoic acid, can be used, and one or more of these can be used. .. The origin of the component (a) is not particularly limited as long as it is usually used in cosmetics, but it may be either a natural product or a synthetic product. Among these components (a), linoleic acid is particularly preferable because it does not change odor over time.

The content of the component (a) in the present invention is not particularly limited, but is preferably 0.0001 to 5% by mass (hereinafter, simply abbreviated as "%") from the viewpoint of enhancing the skin effect such as barrier function improvement and whitening effect. , 0.001 to 1%, more preferably 0.05 to 0.5%.

The polyoxyethylene polyoxypropylene decyltetradecyl ether of the component (b) used in the present invention is obtained by addition polymerization of ethylene oxide and propylene oxide to decyltetradecanol.
The number of moles of polyoxyethylene added to the polyoxyethylene polyoxypropylene decyltetradecyl ether of the component (b) is not particularly limited, but 5 to 40 is preferable from the viewpoint of interface stability and emulsification stability over time. , Further preferably 10 to 30, more preferably 25 to 35. The number of moles of polyoxypropylene added is not particularly limited, but is preferably 2 to 10 and more preferably 4 to 8 from the viewpoint of interface stability and emulsion stability over time.

The component (b) is an essential component for stably blending the component (a) in the water system even in a small amount, oriented toward the carbon chain of the component (a) at the oil droplet interface containing the component (a). In addition, by acting as a protecting group by orientation, oxidation of unsaturated bonds is suppressed, so that odor change with time can be prevented.

Commercially available products of component (b) include NIKKOL PEN-4612, NIKKOL PEN-4620, NIKKOL PEN-4630 (all manufactured by Nikko Chemicals Co., Ltd.), Unilube 20MT-2000B, Unilube 50MT-2200B, Unilube MT-0612B, Unilube MT. Examples thereof include −0620B, Unilube MT-0630B (above, manufactured by NOF CORPORATION), Blaunon DC-620, Blaunon DC-630 (above, manufactured by Aoki Oil & Fat Industry Co., Ltd.) and the like.

The content of the component (b) in the present invention is not particularly limited and can be appropriately designed in consideration of economic efficiency, solubility, stability and the like, and the multivalent value of the component (a) having 16 to 22 carbon atoms. From the viewpoint of stabilizing an external preparation for skin or a cosmetic containing an unsaturated fatty acid, 0.005 to 2% is preferable, 0.005 to 1% is more preferable, and 0.01 to 0.5% is further preferable.

Regarding the content mass ratio of the component (a) and the component (b), from the viewpoint of emulsion stability, it is preferable that (a) / (b) = 0.2 to 30, and 0.2 to 5 is more preferable. preferable.

Examples of the water of the component (c) used in the present invention include purified water generally used for cosmetics, deep sea water, hot spring water, fruit water, plant water, steam distilled water of plants, and the like. can. These can be used by appropriately selecting one type or two or more types and using them in combination.

In the present invention, in addition to the above components, one or more polar oils having a monounsaturated fatty acid chain having 18 or more carbon atoms can be further contained as the component (d). A mono-unsaturated fatty acid chain is a fatty acid chain having one unsaturated carbon bond. That is, the component (d) is a polar oil having one or two or more fatty acid chains having one unsaturated carbon bond in the molecule. The component (d) may be a monounsaturated fatty acid having 18 or more carbon atoms, or an ester having a monounsaturated fatty acid chain having 18 or more carbon atoms.

Examples of the monounsaturated fatty acid having 18 or more carbon atoms in the component (d) include oleic acid, gadoeric acid, erucic acid, and the like. Examples of the ester having a monounsaturated fatty acid chain having 18 or more carbon atoms in the component (d) include an ester of a monounsaturated fatty acid chain having 18 or more carbon atoms and a monohydric alcohol or a polyhydric alcohol. A monohydric alcohol is an alcohol in which one or more hydrogen atoms of an aliphatic hydrocarbon are substituted with a hydroxyl group (hydroxyl group). Examples of monohydric alcohols that can be used include saturated linear aliphatic alcohols having 1 to 22 carbon atoms (methanol, ethanol, n-propanol, n-butanol, n-octanol, decanol, lauryl alcohol, myristyl alcohol, etc. Cetyl alcohol, stearyl alcohol, behenyl alcohol, etc.), palmitrail alcohol, oleyl alcohol, elcil alcohol, and other monoene linear aliphatic alcohols, saturated branched aliphatic alcohols with 3 to 36 carbon atoms (isopropyl alcohol, isobutanol, sec- Butanol, 2 ethylbutanol, 2-ethylhexanol, 3,5,5-trimethylhexanol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, 2-decyltetradecanol, 2-hexadecyleicosanol, etc.) , Cholesterol, Cholestanol, Feitsterol, etc. The polyhydric alcohol is an alcohol in which two or more hydrogen atoms of an aliphatic hydrocarbon are substituted with a hydroxyl group (hydroxyl group). Examples of polyhydric alcohols that can be used include ethylene glycol, propylene glycol, trimethylene glycol, isoprene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, and the like. Divalent alcohols such as pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol; trivalent alcohols such as glycerin, trimethylolpropane, 1,2,6-hexanetriol; penta Tetravalent alcohols such as erythritol; polyhydric alcohol polymers such as diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, and polyglycerin can be mentioned. It is preferably a divalent or trivalent alkanediol or alkanetriol, and more preferably an alkanetriol or alkanediol having 5 or less carbon atoms. Particularly preferred are 1,2,3-propanetriol (glycerin), propylene glycol, and 1,3-butylene glycol.

Specifically, the component (d) is a fatty acid mixture containing monounsaturated fatty acid in addition to oleic acid and its ester, gadoeric acid and its ester, erucic acid and its ester, such as olive oil, sesame oil, and rice bran oil. Examples include fatty acids obtained by hydrolyzing fats and oils such as soybean oil, tea seed oil, camellia oil, corn oil, rapeseed oil, palm oil, peanut oil, saflower oil, sunflower oil, and macadamia nut oil, and their esters. , One type or two or more types can be used as required. Among them, an ester oil which is liquid at 25 ° C. and is composed of a monounsaturated fatty acid having 18 or more carbon atoms and a monohydric alcohol is more preferable because it is excellent in oxidative stability of itself. A more preferable example of the component (d) is an oleic acid ester, and among them, ethyl oleate, octyldodecyl oleate, oleyl oleate, cholesteryl oleate, decyl oleate, phytosteryl oleate and the like are preferable. Commercially available products include CLEARBRIGHT E-81S (manufactured by NOF), NIKKOL EOO (manufactured by Nikko Chemicals), SR CRODAMOL OO (manufactured by Croda), Saracos PO (T) (manufactured by Nisshin Oillio), YOFCO CLC- Examples thereof include 678 (manufactured by Nippon Fine Chemical Co., Ltd.) and lysterol ester (manufactured by Tsukino Rice Fine Chemicals Co., Ltd.).

In the present invention, by containing the component (d), the component (a) is oriented toward the carbon chain and acts as a protecting group, thereby suppressing the oxidation of unsaturated bonds and causing odor change over time. It is preferable because it can be further prevented. Further, the component (d) plays a role of connecting the component (a) and the component (b), and is considered to contribute to emulsification and stabilization of odor.

The content of the component (d) in the present invention is not particularly limited, but is preferably 0.01 to 1% from the viewpoint of emulsion stability, and more preferably 0.05 to 0.5% from the viewpoint of odor change.

The viscosity of the external skin preparation or cosmetic of the present invention is not particularly limited, but the viscosity at 25 ° C. is in the range of 1 to 15000 mPa · s as measured by a Brookfield type rotational viscometer from the viewpoint of fresh and refreshing usability. It is preferably formulated, and more preferably 1 to 5000 mPa · s. Further, in a system in which an oily component is solubilized or dispersed, when the viscosity is lowered, the polyvalent unsaturated fatty acid of the component (a) tends to be oriented at the interface, so that it easily aggregates during long-term storage, resulting in a change in turbidity or oil floating. However, the external preparation for skin or cosmetics of the present invention is excellent in stability even in a region where the viscosity is as low as 1 to 15000 mPa · s.

In addition to the above-mentioned essential components, the skin external preparation or cosmetic of the present invention includes, for example, powders, oils, water-soluble polymers, alcohols, gelling agents, and film-forming agents as components usually used in cosmetics. , Resins, surfactants, UV absorbers, moisturizers, pH regulators, preservatives, fragrances, antioxidants, metal sequestering agents, colorants, various medicinal agents, animal and plant / microorganism-derived extracts, fragrances, etc. It can be appropriately added as long as the effect of the present invention is not impaired. In addition, a medicinal ingredient such as an antioxidant, a cell activator, an anti-inflammatory agent, and an ultraviolet inhibitor may be used in combination to further enhance the effect of the present invention or further add other effects.

〔Production method〕
The external preparation for skin or cosmetics of the present invention can be produced by a conventional method. Typically, a mixture of water-soluble components containing the component (c) is uniformly mixed with an oil-based component containing the components (a), (b) and the like, and the mixture is added with stirring.

The dosage forms of the external preparation for skin or cosmetics of the present invention include water-based, oil-based, emulsified (oil-in-water emulsified, oil-in-oil emulsified), solubilized, powder-based, solvent-based, liposomes, and multilamella vesicles. , Single lamellar vesicle dosage form and the like. Here, an oil-in-water emulsified type that can obtain a fresh feel while containing a large amount of the component (a) in order to enhance the skin effect such as the improvement of the barrier function and the whitening effect is particularly preferable.

The external preparation for skin or cosmetics of the present invention can be prepared in various dosage forms such as solid preparations, semi-solid preparations and liquid preparations according to the purpose of use thereof. Conventionally, since the external preparation for skin or cosmetics easily flows in a liquid having a low viscosity, changes in turbidity and oil floating are likely to occur, and the stability of the preparation is poor. However, according to the present invention, even a dosage form having a relatively low viscosity can be stably formulated. Therefore, the external preparation for skin or cosmetics of the present invention can be in various dosage forms, including those such as cosmetics having a relatively low viscosity. More specifically, the skin external preparation or cosmetic of the present invention can be used as basic cosmetics such as cleansing, washing pigments, lotions, milky lotions, creams, massage products, pack products, beauty liquids / gels, lip care products, etc .; base makeup. Cosmetics such as foundations, face powders, makeup bases, concealers; point makeup cosmetics such as lipsticks, lip gloss liners, teak products, eye shadows, eye liners, mascara, eyebrow products; body cosmetics soaps, liquid cleansers, etc. , Sunscreen cream, bathing agent, etc .; As cosmetics for hair or scalp, shampoo, rinse, hair treatment, hair conditioner, hair tonic, hair restorer, scalp treatment, etc. can be used. Further, it can be a plaster, an ointment, a poultice, a liniment, a lotion, a coating agent, a patch, an aerosol agent (spray agent).

Further, the external preparation for skin or cosmetic of the present invention may be applied over a wide area of the skin such as the face, arms and fingers, or may be partially applied to a place where pigmentation or uneven color is a concern.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the scope of the present invention is not limited to the following Examples.

Examples 1 to 5 and Comparative Examples 1 to 3: Toner (manufacturing method)
The lotions of Examples 1 to 5 and Comparative Examples 1 to 3 shown in Table 1 were produced by the following production methods, and (a) the emulsified state immediately after production, (b) emulsification stability, and (c) odor change over time. The lack of deficiency was evaluated and judged by the evaluation method and judgment criteria shown below, and the results are also shown in Table 1. The viscosity of the obtained Example at 25 ° C. was in the range of 1 to 15000 mPa · s.

* 1 NIKKOL PEN-4620
* 2 NIKKOL PBC-44
* 3 PYROTER GPI-25
* 4 NIKKOL HCO-40
* 5 CLEARBRIGHT E-81S (manufactured by NOF CORPORATION)
* 6 Lysterol ester (manufactured by Tsukino Rice Fine Chemicals)

(Production method)
A: Ingredients (1) to (8) are heated and uniformly mixed.
B: A was added to the component (9) with stirring to obtain a lotion.

Evaluation items (a) Emulsification state immediately after production, (b) For emulsification stability, each sample is placed in a glass bottle, (a) is immediately after production, and (b) is the oil of the formulation after storage at 50 ° C. for 1 week. One panel specializing in cosmetics evaluation observed the presence or absence of floating and made an evaluation judgment.
[Judgment]: [Evaluation]
◎: No oil float ×: With oil float

Regarding the absence of odor change over time in evaluation item (c), a professional evaluator evaluates the odor after storing each sample in a constant temperature bath at 50 ° C for 1 month, and stores it in a constant temperature bath at 5 ° C for 1 month. The sample was evaluated and judged using the following four-stage evaluation criteria.
[Judgment]: [Evaluation]
◎: No change at all 〇: Smell change is negligible △: Smell change is seen ×: Smell change is seen and the degree is remarkable

As is clear from Table 1, Examples 1 to 5 were excellent in (a) an emulsified state immediately after production, (b) emulsification stability, and (c) no odor change over time. Further, by containing the component (d) ethyl oleate or phytosteryl oleate, the odor of the preparation could be further suppressed. On the other hand, in Comparative Example 1 in which the polyoxyethylene polyoxypropylene alkyl ether of the component (b) was replaced with the polyoxyethylene (20 mol) polyoxypropylene (8 mol) cetyl ether, oil floating occurred immediately after production. The odor was also remarkable. Further, in Comparative Example 2 in which polyoxyethylene (25 mol) glyceryl pyroglutamate was replaced with glyceryl, no oil float was observed immediately after production, but emulsified droplets were united over time and oil float was observed, resulting in an odor change. Was also inferior. In Comparative Example 3 in which polyoxyethylene (40 mol) hardened castor oil was changed to polyoxyethylene (40 mol), oil floating was similarly observed with time, and in addition, oxidative deterioration of component (a) occurred, and a significant deodorization was observed with time. ..

Example 6: Gel cream (ingredient) (%)
1. 1. Ethanol 8.0
2. Methyl paraoxybenzoate 0.05
3. 3. Polyoxyethylene (30 mol) Polyoxypropylene (6 mol)
Decyl Tetra Decyl Ether * 7 0.2
4. Linoleic acid 0.15
5. Phenoxyethanol 0.1
6. Glycerin 5.0
7. Residual amount of purified water 8. Polyoxyethylene hydrogenated castor oil * 8 0.2
9. Squalene 1.0
10. Dimethylpolysiloxane 4.0
11. (Dimethicone / Vinyl Dimethicone) Cross Polymer * 9 1.5
12. Polyoxyethylene (11 mol) methyl ether dimethicone 2.0
13. Alkyl-modified carboxyvinyl polymer * 10 0.1
14. Carboxyvinyl polymer * 11 0.2
15. Triethanolamine 0.05
* 7: Brownon DC-630 (manufactured by Aoki Oil & Fat Industry Co., Ltd.)
* 8: Marpon HC-40A (manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.)
* 9: Silicon KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 10: CARBOPOL 1382 (manufactured by LUBRIZOL ADVANCED MATERIALS)
* 11: CARBOPOL980 (manufactured by LUBRIZOL ADVANCED MATERIALS)

(Production method)
A: Ingredients (1) to (5) are uniformly mixed and dissolved.
B: Ingredients (6) and (7) are mixed and dissolved at 70 ° C.
C: Ingredients (8) to (12) are heated at 70 ° C. and then slowly injected into B for emulsification.
D: (13) to (15) are uniformly mixed, and are further mixed in addition to C.
E: A was added to D and mixed, and the mixture was cooled to room temperature to obtain a gel-like cream.

The gel-like cream of Example 6 was excellent in emulsification stability and no odor change over time.

Example 7: Liquid cleansing agent (ingredient) (%)
1. 1. Polyoxyethylene triisostearate (20 mol) Glyceryl * 12 7.0
2. Polyoxyethylene Isostearate (20 mol) Glyceryl * 13 6.0
3. 3. Residual amount of purified water 4. Dipropylene glycol 15.0
5.1,3-butylene glycol 5.0
6. Polyoxyethylene (10 mol) methylglucoside * 14 5.0
7. Polyethylene glycol 1500 3.0
8. Glycerin 2.0
9. Citric acid 0.05
10. Sodium citrate 0.05
11. Ethanol 5.0
12. α-linolenic acid 0.05
13. Polyoxyethylene (20 mol) Polyoxypropylene (6 mol)
Decyl Tetra Decyl Ether * 1 0.2
* 12 M Fine Oil ISG-20T (manufactured by Miyoshi Oil & Fat Co., Ltd.)
* 13 Brownon RGL-20MISE (manufactured by Aoki Oil & Fat Industry Co., Ltd.)
* 14 McBiobride MG-10E (manufactured by NOF CORPORATION)

(Production method)
A: Ingredients (3) to (10) are uniformly mixed and dissolved.
B: Ingredients (11) to (13) are uniformly mixed and dissolved.
C: B is slowly injected into A to emulsify.
(1) and (2) were added to D: C and mixed to obtain a liquid cleansing agent.

The liquid cleansing agent of Example 7 was excellent in emulsification stability and no odor change over time.

Example 8: Gel-like beauty essence (ingredient) (%)
1. 1. Methyl cellulose 0.2
2. Xanthan gum 0.5
3. 3. Sodium alginate 0.1
4. Alkyl-modified carboxyvinyl polymer * 10 0.2
5. Sodium hyaluronate 1% aqueous solution 2.0
6. Glycerin 5.0
7. Methyl glucose 2.0
8. Sodium hydroxide 0.1
9. Ethylenediaminetetraacetic acid disodium 0.05
10. Residual amount of purified water 11. Isotridecyl isononanoate 0.02
12. 2-ethylhexyl methoxycinnamate 0.02
13. Fragrance 0.05
14. Methyl paraoxybenzoate 0.03
15. Linoleic acid 0.1
16. Polyoxyethylene (12 mol) Polyoxypropylene (6 mol)
Decyl Tetra Decyl Ether * 15 0.5
* 15 NIKKOL PEN-4612 (manufactured by Nikko Chemicals Co., Ltd.)

(Production method)
A: Ingredients (1) to (10) are uniformly mixed at 70 ° C.
B: Ingredients (11) to (16) are uniformly dissolved at 70 ° C.
C: B was added to and mixed with A while stirring, and cooled to room temperature to obtain a gel-like beauty essence.

The gel-like beauty essence of Example 8 was excellent in emulsification stability and no odor change over time.

Example 9: Sheet pack cosmetics (ingredients) (%)
1. 1. Lino-acidic acid 0.05
2. Polyoxyethylene (30 mol) Polypropylene (6 mol)
Decyl Tetra Decyl Ether * 16 0.3
3. 3. L-ascorbic acid isopalmitate 0.1
4. Tripolioxyethylene (10 mol) alkyl (12-15)
Ether phosphoric acid * 17 0.1
5. 2-ethylhexyl methoxycinnamate 0.05
6. Glycerin 3.0
7.1,3-butylene glycol 5.0
8. Ethanol 8.0
9. Sodium citrate 0.02
10. Citric acid 0.05
11. Phenoxyethanol 0.05
12. Fragrance 0.02
13. Diethylenetriamine pentaacetic acid pentasodium 40% aqueous solution 0.15
14. Residual amount of purified water * 16 Unilube MT-0630B (manufactured by NOF CORPORATION)
* 17 NIKKOL TDP-10 (manufactured by Nikko Chemicals Co., Ltd.)

(Production method)
A: Ingredients (1) to (8) are mixed and dissolved.
B: Ingredients (9) to (14) are mixed and dissolved.
C: A is added to B and mixed.
D: C was impregnated into the non-woven fabric to obtain a sheet-shaped pack cosmetic.

The sheet-shaped pack cosmetic of Example 9 was excellent in emulsification stability and no odor change over time.

Example 10: Beauty essence for liquid hair (ingredient) (%)
1. 1. Linoleic acid 1.0
2. Ethyl oleate 0.2
3. 3. Tocopherol acetate 0.02
4. Menthol 0.5
5. Methyl paraoxybenzoate 0.1
6. Vinyl acetate / vinylpyrrolidone copolymer * 18 0.1
7. Fragrance 0.2
8. Polyoxyethylene (20 mol) Polyoxypropylene (6 mol)
Decyl Tetra Decyl Ether * 1 1.0
9. Polyoxyethylene Isostearate (50 mol) Hardened Castor Oil 0.5
10. Ethanol 50.0
11. Alkyl-modified carboxyvinyl polymer * 10 0.1
12. Carboxyvinyl polymer * 11 0.1
13.2-Amino-2-methylpropanol 0.05
14. Glycerin 1.0
15. Panthenol 0.1
16. Remaining amount of purified water * 18 Acorn KS (manufactured by Osaka Organic Chemical Industry Co., Ltd.)

(Production method)
A: Ingredients (1) to (10) are mixed.
B: Ingredients (11) to (16) are mixed.
C. A was added to B and mixed to obtain a liquid hair essence.

The liquid hair essence of Example 10 was excellent in emulsification stability and no odor over time.

Example 11: Ointment (ingredient) (%)
1. 1. Stearic acid 1.8
2. Cetanol 3.0
3. 3. Polyoxyethylene (20 mol) Polypropylene (10 mol)
Stearyl ether * 19 0.3
4. Methyl paraoxybenzoate 0.1
5. Linoleic acid 0.2
6. Dl-α-tocopherol acetate 0.2
7. Glycerin 5.0
8. Triethanolamine 1.0
9. Carboxyvinyl polymer * 11 0.1
10. Dipotassium glycyrrhizinate 0.5
11. Residual amount of purified water * 19 Unilube 20MT-2000B (manufactured by NOF CORPORATION)

(Production method)
A: Ingredients (5) to (11) are heated and mixed and kept at 75 ° C.
B: Ingredients (1) to (6) are heated and mixed and kept at 75 ° C.
C: B was gradually added to A to obtain an ointment.

The ointment obtained in Example 11 was excellent in emulsification stability and no odor over time.

Claims (5)

The following components (a) to (d) ;
(A) Polyunsaturated fatty acid having 16 to 22 carbon atoms (b) Polyoxyethylene polyoxypropylene decyltetradecyl ether (c) Water
(D) A polar oil having a monounsaturated fatty acid chain having 18 or more carbon atoms is contained, and the content mass ratios (a) / (b) of the component (a) and the component (b) are 0.2 to 0.2 to 30 skin external preparations or cosmetics. The skin external preparation or cosmetic according to claim 1, wherein the component (a) is linoleic acid. The skin external preparation or cosmetic according to claim 1 or 2, wherein the addition mole number of polyoxyethylene of the component (b) is 5 to 40 moles, and the addition mole number of polyoxypropylene is 2 to 10 moles. The skin external preparation or cosmetic according to any one of claims 1 to 3, which has a viscosity at 25 ° C. of 1 to 15000 mPa · s. The skin external preparation or cosmetic according to any one of claims 1 to 4, wherein the component (d) is an ester oil liquid at 25 ° C. consisting of a monounsaturated fatty acid having 18 or more carbon atoms and a monohydric alcohol. Fee.