JP6174449B2 - Oil-in-water emulsified cosmetic - Google Patents

Description

  The present invention relates to an oil-in-water emulsified cosmetic, and more particularly, an oil-in-water emulsified cosmetic comprising an unsaturated fatty acid and an ester of cholesterol or phytosterol, 1 to 10% by weight of beeswax. In addition, the present invention relates to an oil-in-water emulsified cosmetic that has no stickiness, imparts firmness to the skin, is excellent in sustainability of the firmness, and has excellent temporal stability.

In recent years, the application functions of cosmetics have been diversified, and in terms of making the skin look beautiful, not only the purpose of imparting a whitening effect and a moisturizing effect, but also for the purpose of skin firmness and elasticity. ing. For example, cosmetics (for example, refer to Patent Document 1) in which an oily component including liquid oil and solid fat and a cationic water-soluble polymer are combined, or stearyl stearate and hydrocarbon are combined to provide immediate effect and durability. In addition, an emulsified cosmetic material that is excellent in imparting firmness to the skin has also been proposed (for example, see Patent Document 2). In addition, a combination of an oil-soluble film-forming agent and a highly volatile oil agent can give a fast-acting feeling of elasticity, and a combination of a higher alcohol, a higher fatty acid and an N-long chain acylamino acid surfactant. It is also known to maintain a quick feeling of elasticity, to maintain the feeling of elasticity, to improve usability such as good stretch and no stickiness, and to improve moisture retention (for example, Patent Document 3). reference).

JP 2009-286768 A JP 2010-235472 A JP2013-136546A

However, in the technology of Patent Document 1, the solid fat and the cationic water-soluble polymer give a firm feeling, but when a relatively large amount of solid oil is blended, the feeling of stickiness is used. There was a case.
With the technology of Patent Document 2, it is possible to obtain an immediate firmness due to stearyl stearate or the like to be blended, but depending on the blending amount, it may be difficult to achieve an appropriate firmness unique to solid oil, In some cases, the durability was not excellent.
In the technique of Patent Document 3, when oil-soluble film forming agent and highly volatile oil agent, higher alcohol, higher fatty acid and N-long chain acylamino acid type surfactant are used in combination, Immediate firmness obtained by volatilization of the volatile oil agent was not satisfactory in use feeling because a firm film was formed because the volatilization speed was too high. In view of the above-described problems in the prior art, in the present invention, the oil-in-water has no stickiness, gives the skin a firm feeling, and further maintains the firm feeling, and has good stability over time. Aimed to develop in type emulsified cosmetics.

  In view of the above situation, as a result of earnest research, the present inventor has found that an oil agent is important as giving a feeling of firmness to the skin, and in particular, beeswax gives a moderate feeling of firmness especially to the skin. Finding findings. Therefore, as a technique using this feature, it was decided to develop a technique containing a specific amount of beeswax, but depending on the content, beeswax sometimes precipitated in the preparation. Therefore, even if beeswax is contained, it is necessary to improve the stability of the preparation. As a result of various investigations that can be combined with beeswax to improve stability, the structure of the unsaturated fatty acid is determined. It has been found that an oil agent is preferable, and in particular, by containing an ester of an unsaturated fatty acid and cholesterol or phytosterol, not only the precipitation of beeswax is suppressed, but also surprisingly, the unsaturated fatty acid and cholesterol or It has been found that the stickiness, etc. originally possessed by the ester with phytosterol can be eliminated at the same time. And by making it an oil-in-water emulsified cosmetic containing these components, even when a specific amount of beeswax is contained, it is possible to improve the temporal stability, and the present invention has been completed. .

That is, the present invention provides the following components (A) and (B):
(A) Esters of unsaturated fatty acid and cholesterol or phytosterol (B) Beeswax 1-10% by mass
It is related with the oil-in-water type emulsified cosmetic characterized by containing this.

  The content mass ratio B / A of the component (A) and the component (B) is = 0.4 to 20, which relates to an oil-in-water emulsified cosmetic.

  Furthermore, the present invention relates to an oil-in-water emulsified cosmetic comprising an ester of component (C) oleic acid and a monovalent aliphatic alcohol.

  Further, the present invention relates to an oil-in-water emulsified cosmetic comprising phospholipid as component (D).

  The present invention relates to an oil-in-water emulsified cosmetic, characterized in that an oil having a viscosity at 25 ° C. of 2000 mPa · s or less is 50% by mass or less based on the total amount of oil in the oil-in-water emulsified cosmetic.

  The oil-in-water emulsified cosmetic of the present invention has no stickiness, imparts a firm feeling to the skin, is excellent in the sustainability of the firm feeling, and is further excellent in stability over time.

  Hereinafter, the present invention will be specifically described with a focus on preferred embodiments. In the present specification, “to” means a range including numerical values before and after.

The component (A) used in the present invention is an ester of an unsaturated fatty acid and cholesterol or phytosterol, and in the present invention, an effect can be expected mainly on the persistence of the firmness.
The number of carbon atoms of the unsaturated fatty acid is not particularly limited, and the number and position of unsaturated groups in the fatty acid composition may be any. Moreover, although it does not specifically limit as carbon number which comprises a fatty acid, Preferably it is 8-30, More preferably, it is 8-22. Examples of the unsaturated fatty acid include one or more selected from lanolin fatty acid, ricinoleic acid, oleic acid, palmitoleic acid, oleic acid, linoleic acid, and the like. The fatty acid can be used either synthesized or naturally derived. Naturally-derived ones contain many mixed fatty acids, and examples thereof include vegetable oils such as macadamia nut oil fatty acid, rapeseed oil fatty acid, coconut oil fatty acid and olive oil fatty acid.

Examples of the unsaturated fatty acid cholesterol ester of such component ( A ) include lanolin fatty acid cholesteryl, ricesteryl ricinoleate, cholesteryl oleate, dihydrocholesteryl oleate, and macadamia nut fatty acid cholesteryl. Among these exemplifications, one type or two or more types can be used.

Examples of the unsaturated fatty acid phytoterol ester of the component ( A ) include, for example, lanolin fatty acid phytosteryl, ricinoleic acid phytosteryl, oleic acid phytosteryl, oleic acid dihydrophytosteryl, macadamia nut oil fatty acid phytosteryl, dimer linoleic acid (phytosteryl / isotope). Stearyl / cetyl / stearyl / behenyl) and the like. Among these exemplifications, one type or two or more types can be used.

  The unsaturated fatty acid cholesterol ester or the unsaturated fatty acid phytoterol ester is a component that can be expected to improve the persistence of firmness when contained. Of these, macadamian nut oil fatty acid cholesteryl, oleic acid phytosteryl, and macadamia nut oil fatty acid phytosteryl are preferable because they are excellent in firmness and stability over time.

  As an example of a commercial item of a component (A), YOFCO MAC (made by Nippon Seika Co., Ltd.), PLANDOOL-MAS (made by Nippon Seika Co., Ltd.), a lyesterol ester (made by Tsukino Rice Fine Chemicals Co., Ltd.), etc. are mentioned.

  The content of the component (A) used in the oil-in-water emulsified cosmetic of the present invention is not particularly limited, but considering not only the persistence of the firmness of the skin but also the stability over time, etc. The content is preferably 0.01 to 20% by mass (hereinafter, simply referred to as “%”), more preferably 0.1 to 10%, and still more preferably 1 to 5%.

  The component (B) beeswax used in the present invention is a wax obtained from a beehive, and specifically, it is collected from a residue obtained by removing honey from the beehive by pressure compression or solvent extraction. It is what is done. The beeswax can also be used as a white beeswax obtained by bleach-purification. The beeswax is also called amber, and the main component is myricyl palmitate, myricyl serotate, or the like. The melting point varies depending on the obtained conditions (time, place, bee species, collection method, etc.), but it is generally about 60 to 68 ° C. Examples of such commercially available products of component (B) include, for example, WHITE BEES WAXS (manufactured by Miki Chemical Co., Ltd.), bees wax S (manufactured by Croda Japan Co., Ltd.), purified beeswax CY-100 (manufactured by Yokoseki Yushi Kogyo Co., Ltd.), BEESWAX WHITE GRANULES ORGANIC (manufactured by Kyoto Natural Factory) and the like.

  The content of the component (B) used in the oil-in-water emulsified cosmetic of the present invention is 1 to 10%, and more preferably 2 to 5%, in order to give a firm feeling to the skin immediately after the cosmetic application. .

By containing the component (B), it is expected to give the skin a firm feeling, but when this content exceeds 10%, the firmness of the skin may become hard and feel unnatural. In addition, since the component (B) is a solid fat having a high melting point, it may be precipitated, which may cause a problem in use feeling. On the other hand, if the amount is less than 1%, a sufficient tension effect may not be obtained.
On the other hand, the content of the component (A) described above is not particularly limited, but the skin may feel sticky when the cosmetic is applied. However, by including the component (A) and the component (B) in a specific ratio, the stickiness due to the component (A) and the firmness caused by the component (B) are reduced, and the skin is not sticky and has a moderately soft feel. Not only can it be applied for a long time, but the aging stability is improved without the component (B) being precipitated in the oil-in-water emulsion cosmetic.
The content mass ratio B / A of such component (A) and component (B) is preferably 0.4 to 20, and more preferably 1 to 5.

In the present invention, the ester of component (C) oleic acid and a monohydric aliphatic alcohol used in the present invention has the effect of mainly improving the lack of stickiness. Although it does not specifically limit about monovalent | monohydric aliphatic alcohol, Preferably it is 1-20, as for what does not have a sticky feeling especially, it is 1-8, Most preferably, it is 1-8. Specific examples include ethyl oleate, isopropyl oleate, and oleyl oleate. These can be used alone or in combination.
Examples of commercially available components (C) include CLEARBRIGHT E-81S (manufactured by NOF Corporation), SR CRODAMOL OO (manufactured by CRODA JAPAN), and the like.

  In the present invention, it is preferable to contain a component (D) phospholipid in order to further improve the firmness and stickiness of the skin. The phospholipid is a lipid derived from a living body and is not particularly limited as long as it is used as a raw material for cosmetics because it has biocompatibility, skin moisture retention, and skin protection properties. In the present invention, the phospholipid can also be used as an emulsifier in an oil-in-water emulsified cosmetic. The component (D) can be particularly preferred because it can be expected to have a firmness-imparting effect as the component (D) in addition to the firmness-feeling effect of the components (A) and (B) on the skin.

Unless otherwise specified, such phospholipids are those having a structure in which fatty acid and phosphoric acid are bonded with glycerin or sphingosine as a central skeleton, and furthermore, alcohol is ester-bonded to phosphoric acid. Examples of the fatty acid constituting the phospholipid include saturated and unsaturated carboxylic acids having 7 to 22 carbon atoms. The alcohol constituting the phospholipid often contains nitrogen, and examples thereof include choline, ethanolamine, inositol, serine and the like. In the present invention, soybean lecithin extracted from natural soybean and egg yolk, egg yolk lecithin and / or hydrogenated lecithin hydrogenated with these, hydrogenated soybean lecithin, hydrogenated egg yolk lecithin, synthetic phospholipid, etc. are generally known as phospholipids. Can be used. More specifically, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidic acid, phosphatidylinositol, and the like can be preferably used. Among these, one or more kinds can be used.
For example, hydrogenated soybean phospholipid, hydrogenated egg yolk phospholipid, hydrogenated phosphatidylcholine, hydrogenated phosphatidylserine, etc. may be mentioned, and lysophospholipids in which one fatty acid group is removed from phospholipid may be used. It may be. Examples of commercially available hydrogenated phospholipids are Resinol S-10, Resinol S-10E, Resinol S-10M, Resinol S-10EX, Resinol S-PIE (manufactured by Nikko Chemicals), COATSOME NC-21 (manufactured by NOF) ), Phospholipon 100H, Phosphopon 90H, Phospholipon 80H, Phospholipon 90G (manufactured by Phospholipid). Examples of the hydrogenated lysophospholipid include LP70H (manufactured by Nippon Seika Co., Ltd.), SLP-white lyso H, SLP-LPC 70H (manufactured by Sakai Oil Co., Ltd.), and the like.

  The content of the component (D) used in the oil-in-water emulsified cosmetic of the present invention is 0.5 to 5% from the viewpoint of reducing stickiness during application and the effect in the oil-in-water emulsified cosmetic. Yes, 1 to 3% is more preferable.

  The oil-in-water emulsified cosmetic of the present invention contains the above-mentioned essential components. In addition to these components, polyoxyethylene hydrogenated castor oil is used to further improve the temporal stability of the cosmetic. It is preferable to contain. Polyoxyethylene hydrogenated castor oil is a nonionic surfactant that is widely used, and there are several types depending on the difference in the number of moles of ethylene oxide added. The number is not limited, and usually 5 to 100 mol of ethylene oxide may be added, more preferably 10 to 60 mol of ethylene oxide is added, and further 20 to 40 is added. What added the mole ethylene oxide is preferable.

  The oil-in-water emulsified cosmetic of the present invention is characterized by containing the above-mentioned (A) to (C) as an oily component, in order to maintain a firmness effect and a firmness effect. The oil having a viscosity at 25 ° C. of 2000 mPa · s or less is preferably 50% by mass or less based on the total amount of oil in the oil-in-water emulsion cosmetic. The viscosity here is 24 minutes at 25 ° C. using a single-cylinder rotary viscometer (manufactured by Shibaura System Co., Ltd.) with a No. 3 rotor at a speed of 6 revolutions per minute for 1 minute. It means the value measured when rotating. By setting it as such a range, a firm feeling can be provided to skin.

  The present invention is an oil-in-water emulsified cosmetic and contains water. Here, water is used as a dispersion medium of the oil-in-water emulsified cosmetic of the present invention, and is not particularly limited as long as it is usually used in cosmetics. For example, purified water, distilled water, ion-exchanged water, Examples include tap water. Although not particularly limited, the content is more preferably 20 to 60% in the oil-in-water emulsion cosmetic.

  In the oil-in-water emulsified cosmetic of the present invention, in addition to the above-mentioned essential components, components used in ordinary cosmetics, for example, water-soluble polymers, alcohols, water-based aqueous components such as water, surfactants, ultraviolet rays Absorbers, moisturizers, antioxidants, cosmetic ingredients, preservatives, fragrances and the like can be appropriately contained within a range that does not impair the effects of the present invention.

  The method for producing the oil-in-water emulsified cosmetic of the present invention is not particularly limited, but it is necessary to add water and components (A) to (D) and other additives as necessary. Depending on the case, a mixture of optional components may be added and emulsified.

  The oil-in-water emulsified cosmetic of the present invention is not particularly limited, but examples of the shape include liquid, gel, emulsion, cream, semi-solid, and solid. The product forms include facial cleansing foams, facial cleansing creams, cleansings, massages, packs, skin lotions, milky lotions, creams, serums, makeup bases, sunscreens and other skin cosmetics, foundations, white powder, eye shadows, eye For finishing hair such as liner, mascara, eyebrow, concealer, lipstick, lip balm, hair mist, shampoo, rinse, treatment, hair tonic, hair cream, pomade, tic, liquid hair conditioner, set lotion, hair spray, etc. Cosmetics etc. can be illustrated. Among these, the emulsion applied to the face is an oil-in-water emulsified cosmetic in which the effect of the present invention is easily exerted from the viewpoint that it is easy to realize the effect of imparting firmness to the skin. Moreover, as the usage method, a method of taking an appropriate amount by hand, a method of impregnating a nonwoven fabric or the like, and the like are mentioned.

  The oil-in-water emulsified cosmetic composition of the present invention thus obtained is characterized in that it has no stickiness, gives a firm feeling to the skin, and also has excellent persistence and stability over time. There is.

Hereinafter, the present invention will be described in detail with reference to examples. Note that these do not limit the present invention.
Invention products 1-19 and comparative products 1-7: oil-in-water emulsified cosmetics (milky lotion)
The emulsion was prepared by the composition shown in Tables 1 to 4 and the following production method. After applying the appropriate amount of each sample to the face by 20 panelists specializing in cosmetics evaluation, each item of no stickiness, skin firmness (immediately after application), and skin firmness persistence (after 5 hours of application) The evaluation criteria are shown in Tables 1 to 4 together with the results. The stability over time was also evaluated and determined according to the evaluation criteria shown below, and the results are also shown in Tables 1 to 4.

(Production method)
A: Components (1) to (19) are uniformly mixed at room temperature and heated to 70 ° C.
B: Components (20) to (21) are heated to 70 ° C., added to A and emulsified.
C: After cooling B, components (22) to (25) were added and mixed to obtain an emulsion.

Samples of the present invention products 1-19 and comparative products 1-7 were applied to 20 professional evaluators. (1) No stickiness during use, (2) Skin firmness (immediately after application) and (3 ) A questionnaire was conducted on the sustainability (5 hours after application) and evaluated according to the following criteria.

(1: No stickiness in use)
(A) Four-level evaluation criteria (evaluation)
A: More than 16 evaluators answered that there was no stickiness on the skin after application.
A: 12 to 15 evaluators who answered that the skin after application was not sticky.
Δ: Eight to eleven evaluators who answered that the skin after application had no stickiness.
X: Seven or less evaluators answered that there was no stickiness on the skin after application.

(2: Skin firmness (immediately after application))
(B) Four-level evaluation criteria (evaluation)
A: More than 16 evaluators answered that the skin after application was firm.
A: 12 to 15 evaluators who answered that the skin after application had a firm feeling.
Δ: Eight to eleven evaluators who answered that the skin after application had a firmness.
X: Seven or less evaluators answered that the skin after application had a firm feeling.

(3: Persistence of firmness (5 hours after application))
(C) Four-level evaluation criteria (evaluation)
A: More than 16 evaluators answered that the skin after 5 hours of application had a firm feeling.
A: 12 to 15 evaluators who answered that the skin after 5 hours of application had a firm feeling.
(Triangle | delta): Eight to eleven evaluators who answered that there was a firmness in the skin after 5 hours of application.
X: Seven or less evaluators answered that the skin after 5 hours of application had a firm feeling.

(4: Stability over time)
For the evaluation of the temporal stability of the prepared samples, each sample stored in a thermostat at 5 ° C. for one month was polarized using an upright microscope (Olympus) at a magnification of 100 times and an exposure time of 1/200 s. Observed below. Under the polarized light, when the beeswax is deposited in the oil-in-water emulsified cosmetic, it is observed as a white glitter product. Therefore, the presence or absence of beeswax was evaluated according to the following four-step criteria. The comparison products 4 and 5 are the evaluation results of the beeswax comparative components.

(D) Four-level evaluation criteria (evaluation)
(Double-circle): A white bright thing is not observed at all.
○: Slightly unclear white glitter is observed.
(Triangle | delta): An obscure white bright substance is observed in the whole (there is no crystal bright substance).
X: A clear white crystalline glitter is observed.

The oil-in-water emulsified cosmetics of the present invention products 1 to 19 were not sticky and had excellent skin firmness (immediately after application), persistence of firmness (after 5 hours of application), and stability over time. . On the other hand, Comparative Product 1 containing no component (A) was inferior in skin firmness (immediately after application), persistence of firmness (after 5 hours of application), and stability over time. Moreover, the comparative product 2 which does not contain a component (B) produced the stickiness during use, and the evaluation of the firmness of a skin (immediately after application | coating) and the persistence of a firmness feeling (5 hours after application | coating) was low. From these results, it was shown that the component (A) and the component (B) are essential components in the present invention, and the effects of the invention cannot be obtained even if either of these components is missing.
Furthermore, in Comparative product 3 in which the amount of petrolatum was increased instead of component (A), stickiness during use occurred, and the skin feels firm (immediately after application), the persistence of firmness (after 5 hours after application), and stability over time. It was inferior.
Comparative products 4 and 5 containing candelilla wax and rice bran wax having melting points close to those of component (B) have no stickiness during use, persistence of firmness (after 5 hours of application), and stability over time. It was inferior. This is because the component (B) reduces the stickiness of the component (A) and improves the firmness (immediately after application) and the persistence of the firmness (after 5 hours of application), but the melting point is similar to beeswax. It was shown that the effects of the present invention cannot be obtained with other solid oils. Comparative product 6 with a small amount of component (B) was inferior to the inventive product in terms of non-stickiness and firmness of the skin (immediately after application). This is because if the content of the component (B) is small, the non-stickiness of the component (A) cannot be improved, and the firmness of the skin (immediately after application) becomes insufficient. In Comparative product 7 having a large amount of component (B), the firmness of the skin (immediately after application) was excellent, but there was no stickiness, persistence of firmness (after 5 hours of application), and stability over time. It was inferior to the product in the invention. When the content of the component (B) is large, the firmness of the skin (immediately after application) becomes good, but stickiness during use due to the component (B) occurs, and the persistence of the firmness and stability over time are poor. It depends. That is, from this result, it was shown that the component (B) needs a specific content.

Example 2: Oil-in-water emulsified cosmetic (cream for eyes)
(Ingredient) (%)
1. Hydrogenated lecithin 2
2. Polyoxyethylene (20) hydrogenated castor oil 0.5
3. Concentrated glycerin 10
4.1,3-Butylene glycol 5
5. Phytosteryl oleate 1
6). Beeswax (melting point 62 ° C) 2
7). Ethyl oleate 3
8). Hydrogenated polyisobutene 2
9. Liquid paraffin 1
10. Olive oil 3
11. Purified water remaining amount 12. Birch extract 0.1
13. Sandalwood extract 0.1
14 Carboxyvinyl polymer 1
15. Sodium hydroxide 0.35
16. Alkaligenes polysaccharide 0.01
17. Polyvinyl alcohol 4

(Production method)
A: Components (1) to (10) are uniformly mixed at room temperature and heated to 70 ° C.
B: The component (11) is heated to 70 ° C., added to A and emulsified.
C: After cooling C to 40 degreeC, component (12)-(17) was added and the cream for eyes was obtained.

  The eye cream of Example 2 had no stickiness, and was excellent in any of the items of skin firmness (immediately after application), persistence of firmness (5 hours after application), and stability over time.

Example 3: Oil-in-water emulsified cosmetic (massage cream)
(Ingredient) (%)
1. Hydrogenated lecithin 2
2. Diglycerin 10
3. Macadamia nut fatty acid phytosteryl 1
4). Oleyl oleate 5
5. Beeswax (melting point 63 ° C) 2
6). Liquid paraffin 2
7). Medoform oil 2
8). Purified water remaining 9. Alkyl-modified carboxyvinyl polymer 1
10. Triethanolamine appropriate amount 11.1,3-butylene glycol 5
12 Hyaluronic acid 0.1
13. Hydrolyzed collagen 0.1
14 Mucopolysaccharide 0.1
15. Clove extract 0.1

(Production method)
A: Components (1) to (7) are uniformly mixed at room temperature and heated to 70 ° C.
B: Components (8) to (11) are heated to 70 ° C., added to A and emulsified.
C: After cooling C to 40 degreeC, component (12)-(15) was added and the massage cream was obtained.

The massage cream of Example 3 had no stickiness, and was excellent in both items of skin firmness (immediately after application), persistence of firmness (after 5 hours of application), and stability over time.

Example 4: Oil-in-water emulsified cosmetic (sunscreen cream)
(Ingredient) (%)
1. Hydrogenated lecithin 2
2. Concentrated glycerin 10
3. 1,3-butylene glycol 5
3. Macadamia nut fatty acid phytosteryl 1
4). Beeswax (melting point 65 ° C) 1.5
5. Ethyl oleate 1
6). Ethyl hexyl methoxycinnamate 7
6). Diglyceryl tetraisostearate 5
7). Dimethylpolysiloxane (* 2) 2
8). Squalane 8
9. Purified water remaining amount 10. Acrylic acid / alkyl methacrylate copolymer (* 1) 1
11. Triethanolamine appropriate amount 12. Carrageenan 1
(* 2) SH200C FLUID 6CS (manufactured by Dow Corning Toray)

(Production method)
A: Components (1) to (8) are uniformly mixed at room temperature and heated to 70 ° C.
B: Components (9) to (11) are heated to 70 ° C., added to A and emulsified.
C: After cooling C to 40 ° C., component (12) was added to obtain a sunscreen cream.

The sunscreen cream of Example 4 had no stickiness and was excellent in any of the items of skin firmness (immediately after application), persistence of firmness (5 hours after application), and stability over time.

Claims (4)

(A) Esters of unsaturated fatty acids and cholesterol or phytosterols (B) Beeswax 2 to 10% by mass
( C ) ester ( D ) phospholipid of oleic acid and monovalent aliphatic alcohol , facial cleansing foam, facial cleansing cream, cleansing, massage, pack, lotion, milky lotion, cream, serum An oil- in- water emulsified cosmetic for skin selected from the group consisting of a makeup base and a sunscreen .   The oil-in-water emulsified cosmetic according to claim 1, wherein the content ratio of the component (A) and the component (B) is B / A = 0.4 to 20. The oil-in-water emulsion cosmetic according to claim 1 or 2 , wherein the oil having a viscosity at 25 ° C of 2000 mPa · s or less is 50% by mass or less based on the total amount of oil in the oil-in-water emulsion cosmetic. Fee. The oil-in-water emulsified cosmetic according to any one of claims 1 to 3, which is for imparting a sense of elasticity .