JP2005139094A - Oil-in-water type skin external preparation composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil-in-water type skin external preparation composition which excels in long-term storage stability, is not sticky and rich, and has a fresh feeling of use. <P>SOLUTION: The oil-in-water type skin external preparation composition comprises (a) 5-15 mass% glycerin, (b) 0.5-10 mass% specific alkylene oxide derivative, (c) 0.02-3 mass% batyl alcohol, and (d) 0.02-3 mass% ≥16C saturated aliphatic alcohol (behenyl alcohol or the like). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an oil-in-water (O / W) skin external preparation composition. More specifically, the present invention relates to an oil-in-water skin external preparation composition that is not sticky, has a rich body, has a fresh feeling of use, and has excellent long-term storage stability.

  In addition to the base component, various components are added to the external preparation for skin according to the purpose. A moisturizing agent is mentioned as such a component, and glycerin is frequently used because of its particularly excellent moisturizing effect. However, a system in which glycerin is mixed has a problem that it is accompanied by a sticky feeling.

  On the other hand, as a skin external preparation base for improving usability, a skin external preparation base mainly containing a specific alkylene oxide derivative has been filed by the present applicant (Patent Document 1). This is because the aqueous base and the oil base are not compatible with each other, and when these two types of bases are blended, a large amount of emulsifier is required, so that a sticky feeling is promoted, and a moist feeling is impaired. This is to suppress problems caused by blending a large amount of emulsifier, which is a negative factor in the appearance and stability of the blend.

Japanese Patent Laid-Open No. 2003-113023

  In a system in which glycerin is blended with a system containing the specific alkylene oxide derivative, a problem due to the combined use with glycerin occurs, although a problem due to a large amount of emulsifier can be solved.

  In such a case, means for suppressing stickiness by adding a solid oil component or the like is generally known. However, when stored for a long period of time, there is a problem that these solid oil components are likely to precipitate and cause blisters.

  An object of the present invention is to provide an oil-in-water type skin external preparation composition that solves the above-mentioned conventional problems, has excellent long-term storage stability, has no stickiness, is rich, and has a fresh feeling of use.

  The present inventor has found that the above problem can be solved by blending a specific higher alcohol and a glyceryl alkyl ether into a system containing glycerin and the specific alkylene oxide derivative, respectively, in specific amounts. completed.

  That is, the present invention comprises (a) 5 to 15% by mass of glycerin, (b) 0.5 to 10% by mass of an alkylene oxide derivative represented by the following formula (I), and (c) 0.02 to 2.0% of batyl alcohol. Provided is an oil-in-water type skin external preparation composition containing 3% by mass and (d) 0.02 to 3% by mass of a saturated aliphatic alcohol having 16 or more carbon atoms.

_{R 1 O - [(AO)} m (EO) n] -R 2 (I)

(In the formula (I), AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, m and n are average addition moles of the oxyalkylene group and oxyethylene group, respectively, 1 ≦ m ≦ 70,1 is ≦ n ≦ 70. (AO + EO) ratio of EO with respect to, the .AO the EO with 20 to 80% by weight also be added in a block form may also be added to the random form .R ₁ R ₂ is a hydrocarbon group having 1 to 4 carbon atoms which may be the same or different or a hydrogen atom, and the ratio of the hydrogen atom to the hydrocarbon group of R ₁ and R ₂ is 0.15 or less.)

  The present invention also provides the oil-in-water external skin composition described above, wherein an oxyalkylene group and an oxyethylene group are randomly added to the alkylene oxide derivative represented by the formula (I).

  The present invention further provides the oil-in-water external skin composition described above, further comprising (e) 0.5 to 5% by mass of erythritol.

  ADVANTAGE OF THE INVENTION According to this invention, while being excellent in long-term storage stability, there can be obtained the oil-in-water type skin external preparation composition which is not sticky, is full, and has a fresh feeling of use.

  (A) Although glycerin as a component is mix | blended 5-15 mass% in this invention composition whole quantity, Preferably it is 5-10 mass%.

  The component (b) is an alkylene oxide derivative represented by the following formula (I).

_{R 1 O - [(AO)} m (EO) n] -R 2 (I)

  In the above formula (I), AO represents an oxyalkylene group having 3 to 4 carbon atoms. Specific examples include an oxypropylene group, an oxybutylene group, an oxyisobutylene group, an oxytrimethylene group, and an oxytetramethine group. An oxypropylene group and an oxybutylene group are preferable. EO represents an oxyethylene group.

  m is the average added mole number of AO, and 1 ≦ m ≦ 70, preferably 2 ≦ m ≦ 20. n is the average added mole number of EO, and 1 ≦ n ≦ 70, preferably 2 ≦ n ≦ 20. When m and n are less than 1, the moist feeling is lowered. On the other hand, when m and n are more than 70, a sticky feeling is produced, and a smooth feeling cannot be obtained sufficiently.

  The ratio of EO to the total of AO and EO [EO / (AO + EO)] is preferably 20 to 80% by mass. When the EO ratio is less than 20% by mass, a moist feeling tends to be inferior, while when it exceeds 80% by mass, a smooth feeling tends to be inferior.

  The order of adding AO and EO is not particularly limited. AO and EO may be added in a block shape or may be added in a random shape. The block shape includes not only two-stage blocks but also three or more stages. Preferably, those added randomly are listed.

R ₁ and R ₂ each independently represents a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom. Examples of the hydrocarbon group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, and a tert-butyl group. A methyl group and an ethyl group are preferred. Hydrocarbon groups having 5 or more carbon atoms are less hydrophilic and less moist.

R ₁ and R ₂ may be the same hydrocarbon group, or a mixture of hydrocarbon groups and hydrogen atoms, or a mixture of hydrocarbon groups and carbon groups having different numbers of carbon atoms. May be. However, among the hydrocarbon groups of R ₁ and R ₂ , the abundance ratio of hydrocarbon groups and hydrogen atoms is such that the ratio Y / X of the number of hydrogen atoms (Y) to the number of hydrocarbon groups (X) is 0. 15 or less, preferably 0.6 or less. When Y / X exceeds 0.15, a sticky feeling comes out.

  The component (b) can be produced by a known method. For example, it can be obtained by subjecting a compound having a hydroxyl group to addition polymerization of ethylene oxide and an alkylenoxide having 3 to 4 carbon atoms, and then subjecting an alkyl halide to an ether reaction in the presence of an alkali catalyst, but is not limited thereto. It is not a thing.

  (B) The compounding quantity of a component is 0.5-10 mass% in this invention composition whole quantity, Preferably it is 0.5-6 mass%. If the blending amount exceeds 10% by mass, there is a problem in usability, while if it is less than 0.5% by mass, the effect of the present invention cannot be expected. (B) A component can use 1 type (s) or 2 or more types.

  The present invention is characterized in that a specific amount of each of the following components (c) and (d) is combined in a system in which the components (a) and (b) are blended.

Batyl alcohol (C ₂₁ H ₄₄ O ₃ ) as component (c) is also called octadecyl glyceryl ether, glyceryl monostearyl ether, etc., and a long-chain aliphatic alcohol having 18 carbon atoms is ether-bonded at the sn-1 position of glycerol. It is a kind of alkyl glyceryl ether.

  (C) The compounding quantity of a component is 0.02-3 mass% in this invention composition whole quantity, Preferably it is 0.1-1.0 mass%. If the blending amount exceeds 3% by mass, the long-term stability is insufficient and a fresh feeling of use cannot be obtained. On the other hand, if it is less than 0.02% by mass, stickiness occurs and it is difficult to obtain a body.

  The component (d) is a saturated aliphatic alcohol having 16 or more carbon atoms, preferably 16 to 24 carbon atoms. Specifically, hexadecanol (= cetyl alcohol), heptadecanol, octadecanol (= stearyl alcohol), nonadecanol, icosanol (= aralkyl alcohol), henycosanol, docosanol (= behenyl alcohol) and the like are suitable. Illustrated. When a saturated aliphatic alcohol having less than 16 carbon atoms is used as the component (d), the emulsion stability tends to deteriorate. (D) 1 type (s) or 2 or more types can be used for a component.

  (D) The compounding quantity of a component is 0.02-3 mass% in this invention composition whole quantity, Preferably it is 0.1-1.0 mass%. If the blending amount exceeds 3% by mass, the long-term stability is insufficient and a fresh feeling of use cannot be obtained. On the other hand, if it is less than 0.02% by mass, stickiness occurs and it is difficult to obtain a body.

  In this way, the system in which the components (a) and (b) are blended is combined with the above-mentioned specific amounts of the components (c) and (d), thereby causing defects even when stored for a long period of time. In addition, when used, there was no stickiness, there was a rich body, and it was possible to obtain an excellent feeling of use.

  In the present invention, in addition to the components (a) to (d), erythritol may be blended as the component (e) from the viewpoint of the effect on the skin. When blending erythritol, the blending amount is 0.5 to 5% by weight, preferably 0.5 to 3% by weight, based on the total amount of the composition of the present invention. If the blending amount exceeds 5% by mass, stickiness occurs, whereas if it is less than 0.5% by mass, a sufficient effect on the skin cannot be expected.

  The composition of the present invention forms an oil-in-water (O / W) emulsion composition obtained by emulsifying a water phase (outer phase) and an oil phase (inner phase). In addition to the above components (a) to (d) or (a) to (e), the effect of the present invention is not impaired as long as it is a component that can be used for an oil-in-water external skin preparation in the present invention. It can mix | blend arbitrarily in the range.

  The aqueous phase (outer phase) is not particularly limited as long as it is an aqueous component that can be generally used in cosmetics. For example, water such as purified water, water-soluble polymers, and the like are preferably used. A water-soluble drug component may also be blended depending on the purpose.

  Examples of the water-soluble polymer include natural water-soluble polymers, semi-synthetic water-soluble polymers, synthetic water-soluble polymers, and inorganic water-soluble polymers.

  Examples of natural water-soluble polymers include gum arabic, gum tragacanth, galactan, guar gum, locust bin gum, carob gum, caraya gum, carrageenan, pectin, mannan, agar, quince seed (malmello), alge colloid (gum extract), starch (rice, rice, Corn, potato, wheat), plant water-soluble polymers such as glycyrrhizic acid; microbial water-soluble polymers such as xanthan gum, hyaluronic acid, dextran, succinoglucan, curdlan, pullulan; collagen, casein, albumin, gelatin, etc. And other animal water-soluble polymers.

  Examples of semi-synthetic water-soluble polymers include starch-based water-soluble polymers such as carboxymethyl starch and methylhydroxypropyl starch; methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, and hydroxypropylcellulose. Cellulose-based water-soluble polymers such as sodium carboxymethylcellulose (CMC), crystalline cellulose, and cellulose powder; and water-soluble alginates such as sodium alginate and propylene glycol alginate.

  Examples of synthetic water-soluble polymers include vinyl-based water-soluble polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, and carboxyvinyl polymer (trade name “Carbopol”); polyethylene glycol (molecular weights 20,000, 600,000, 4,000,000) Polyoxyethylene water-soluble polymers such as polyoxyethylene polyoxypropylene copolymer water-soluble polymers; acrylic water-soluble polymers such as sodium polyacrylate, polyethyl acrylate and polyacrylamide; polyethyleneimine, cationic polymer Etc.

  Examples of the inorganic water-soluble polymer include bentonite, AlMg silicate (trade name “Bee gum”), laponite, hectorite and the like.

  The aqueous phase can further contain a moisturizing agent, a chelating agent, a plant extract, a lower alcohol, a pH adjuster, a preservative and the like.

  Examples of the humectant include 1,3-butylene glycol and propylene glycol.

  Examples of chelating agents include metaphosphate and edetate.

  Examples of the plant extract include a yarrow extract and a hamamelis extract.

  The oil phase (inner phase) is not particularly limited as long as it is an oily component that can generally be used for a topical skin preparation. For example, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil Rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, flaxseed oil, safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, Liquid oils such as cinnagari oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin, glyceryl trioctanoate, pentaerythritol tetraoctanoate, glycerin triisopalmitate; cocoa butter, coconut oil, hardened coconut oil, palm oil, Solid fats such as palm kernel oil, owl kernel oil, hydrogenated oil, owl, hydrogenated castor oil; beeswax, candelilla wax, cotton wax, carnauba Cormorant, Bayberry wax, Ibotaro, Whale wax, Montan wax, Nukarou, Lanolin, Kapok wax, Lanolin acetate, Liquid lanolin, Sugar cane wax, Lanolin fatty acid isopropyl, Laxyl hexyl, Reduced lanolin, Jojoba wax, Hard lanolin, Shellac wax, POE lanolin alcohol ether, Waxes such as POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether; hydrocarbon oils such as liquid paraffin, ozokerite, squalene, pristane, paraffin, ceresin, squalane, petrolatum, microcrystalline wax Isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate Butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearylate, di- 2-ethylhexyl acid ethylene glycol, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylol tri-2-ethylhexylate Propane, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexylate, glycerin tri-2-ethylhexylate, Trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, glyceride tri-2-heptylundecanoate, castor oil fatty acid methyl ester, oleic oil, cetostearyl alcohol, aceto Glyceride, 2-heptylundecyl palmitate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, ethyl laurate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, ethyl acetate, butyl acetate, amyl acetate Synthetic ester oils such as triethyl citrate; Chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane and methylhydrogenpolysiloxane; Octamethylcyclotetra Rokisan, decamethylcyclopentasiloxane, although cyclic silicones such as dodecamethyl cyclohexane siloxane, are not limited to these examples. One or more oily components can be used.

  Further, an oily gelling agent such as an organically modified clay mineral, starch fatty acid ester, or dimethylpolysiloxane polymer may be used in combination with the oil phase. Furthermore, as an oil component, a fine powder of a high melting point wax such as microcrystalline wax, a porous powder such as magnesium carbonate, a highly cohesive polymer such as an acrylate copolymer, and the like are supported and absorbed to form a powder. It is also possible to use a product obtained by encapsulating an oil component with polymethyl methacrylate, hardened gelatin, agar or the like. Depending on the purpose, an oil-soluble drug component may also be blended.

  In order to further improve the oil-in-water type emulsion stability, a higher alcohol (excluding the component (d)), a higher fatty acid, etc. may be further blended, and an acrylic acid / alkyl methacrylate copolymer, High molecular compounds such as sodium N-stearoyl-L-glutamate may be blended.

  Examples of higher fatty acids include palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and the like. Can be mentioned.

  The O / W emulsion composition of the present invention can be prepared by a conventional method, and the emulsification method is not particularly limited. For example, the oil phase and the aqueous phase are each heated to about 70 ° C., the heated oil phase is gradually added to the aqueous phase, emulsified with an emulsifier, and then allowed to cool to room temperature. Although it is mentioned, it is not limited to this.

  In the present invention, the amount of the internal phase (oil phase) is preferably about 1 to 30% by mass relative to the total mass of the composition, more preferably about 5 to 20% by mass from the point of emollient. preferable.

  The oil-in-water type skin external preparation composition of the present invention is applied to, for example, creams, emulsions, cosmetics, masks, etc., but is not limited to these examples.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to a following example. In addition, all compounding quantities are shown by the mass%.

  First, an evaluation test method and evaluation criteria performed in this example are shown.

[Low temperature stability test]
Using the samples obtained in Examples and Comparative Examples, a constant temperature stability test was performed at 0 ° C. for one month, the state of the sample after the test was visually observed, and evaluated according to the following evaluation criteria.
(Evaluation criteria)
○: No pimples were observed. △: Slight puffs were found.

[Usability (stickiness)]
A specialized panel (10 persons) had a sensory evaluation on usability (stickiness) when the samples obtained in Examples and Comparative Examples were applied to the skin.
(Evaluation criteria)
◎: 9 or more out of 10 responded that there was no stickiness when used. ○: 6 to 8 out of 10 responded that there was no stickiness when used. △: 3-5 out of 10 people were sticky when used. No answer ×: 2 or less of 10 people answered that there was no stickiness during use

[Usability]
An expert panel (10 persons) had a sensory evaluation on usability (koku) when the samples obtained in Examples and Comparative Examples were applied to the skin.
(Evaluation criteria)
◎: 9 or more out of 10 responded that there was a body when in use ○: 6 to 8 out of 10 responded that there was a body during use △: 3 to 5 out of 10 people were in contact with a body Answer: Yes: 2 out of 10 respondents say they are full

[Usability (freshness)]
A specialized panel (10 persons) had a sensory evaluation on usability (freshness) when the samples obtained in Examples and Comparative Examples were applied to the skin.
(Evaluation criteria)
◎: 9 or more out of 10 responded that they were fresh during use. ○: 6-8 persons out of 10 responded that they were fresh during use. △: 3-5 out of 10 responded that they were fresh during use. Less than 2 of the names are fresh when used

(Examples 1-4, Comparative Examples 1-2)
A composition was prepared using the components shown in Tables 1 and 2 below, and the obtained composition (sample) was evaluated by the test method and evaluation method described above. The results are shown in Tables 1-2.

In Tables 1 and 2, “polyoxyethylene / polyoxypropylene random copolymer methyl ^(*) ” means that in the above formula (I), AO is an oxypropylene group, m is 7, n is 14, R ₁ , R ₂ having a methyl group (mass average molecular weight 1000) was used.

  As is clear from the results in Tables 1 and 2, the composition of the present invention was excellent in long-term stability and excellent in touch (stickiness, richness, freshness) during use.

  A prescription example is shown below.

(Example 5 cream)
(Mixed component) (mass%)
Vaseline 2
Dimethylpolysiloxane 2
Ethanol 5
Stearyl alcohol 0.9
Batyl alcohol 0.9
Glycerin 7
1,3-butylene glycol 5
Polyethylene glycol (20000) 0.5
Erythritol 2
2-Methacryloyloxyethyl phosphorylcholine-
Butyl methacrylate copolymer 0.2
Jojoba oil 3
Squalane 2
Phytosteryl hydroxystearate 0.5
Tetra-2-ethylhexanoic acid pentaerythrit 1
Polyoxyethylene hydrogenated castor oil 1
Polyoxyethylene-polyoxypropylene random copolymer methyl 3
Potassium hydroxide 0.1
Sodium pyrosulfite 0.01
Sodium hexametaphosphate 0.05
Stearyl glycyrrhetinate 0.1
Pantothenyl ethyl ether 0.1
Arbutin 7
Tranexamic acid 1
Tocopherol acetate 0.1
Sodium hyaluronate 0.05
P-Hydroxybenzoate appropriate amount edetate trisodium 0.05
4-t-butyl-4'-methoxydibenzoylmethane 0.1
Diparamethoxycinnamate mono-2-ethylhexanoate glyceryl 0.1
Yellow iron oxide Appropriate amount Xanthan gum 0.1
Carboxyvinyl polymer 0.2
Purified water residue

(Example 6 serum)
(Mixed component) (mass%)
Dimethylpolysiloxane 2
Decamethylcyclopentasiloxane 3
Stearyl alcohol 0.1
Batyl alcohol 0.1
Ethanol 5
Glycerin 6
1,3-butylene glycol 5
Erythritol 3
Polyoxyethylene methyl glucoside 3
2-Methacryloyloxyethyl phosphorylcholine-
Butyl methacrylate copolymer 0.3
Sunflower oil 1
Squalane 1
Polyoxyethylene-polyoxypropylene random copolymer methyl 5
Potassium hydroxide 0.1
Sodium hexametaphosphate 0.05
Hydroxypropyl-β-cyclodextrin 0.1
Dipotassium glycyrrhizinate 0.05
Loquat leaf extract 0.1
Sodium L-glutamate 0.05
Fennel extract 0.1
Yeast extract 0.1
Lavender oil 0.1
Giant extract 0.1
Dimorpholinopyridazinone 0.1
Xanthan gum 0.1
Carboxyvinyl polymer 0.1
Acrylic acid / alkyl methacrylate copolymer)
("Pemulen TR-1") 0.1
Bengala appropriate amount Yellow iron oxide appropriate amount Paraben appropriate amount Purified water Residual

(Example 7 Latex)
(Mixed component) (mass%)
Liquid paraffin 7
Vaseline 3
Decamethylcyclopentasiloxane 2
Behenyl alcohol 0.3
Batyl alcohol 0.3
Glycerin 9
Dipropylene glycol 7
Polyethylene glycol (1500) 2
Erythritol 3
Jojoba oil 1
Isostearic acid 0.5
Stearic acid 0.5
Behenic acid 0.5
Tetra-2-ethylhexanoic acid pentaerythrit 3
Cetyl 2-ethylhexanoate 3
Glycerol monostearate 1
Polyoxyethylene glyceryl monostearate 1
2-Methacryloyloxyethyl phosphorylcholine-
Butyl methacrylate copolymer 0.3
Polyoxyethylene-polyoxypropylene random copolymer methyl 1
Potassium hydroxide 0.1
Sodium hexametaphosphate 0.05
Stearyl glycyrrhetinate 0.05
L-Arginine 0.1
Royal Jelly Extract 0.1
Yeast extract 0.1
Tocopherol acetate 0.1
Acetylated sodium hyaluronate 0.1
Edetate trisodium 0.05
4-t-butyl-4'-methoxydibenzoylmethane 0.1
2-Ethylhexyl paramethoxycinnamate 0.1
Carboxyvinyl polymer 0.15
Paraben appropriate amount Purified water Residue Fragrance Appropriate amount

INDUSTRIAL APPLICABILITY The present invention is suitably used as a skin external preparation composition that is excellent in long-term stability and excellent in touch (stickiness, body, freshness) during use.

Claims (3)

(A) 5 to 15% by mass of glycerin, (b) 0.5 to 10% by mass of an alkylene oxide derivative represented by the following formula (I), (c) 0.02 to 3% by mass of batyl alcohol, and (D) An oil-in-water skin external preparation composition containing 0.02 to 3% by mass of a saturated aliphatic alcohol having 16 or more carbon atoms.
R ₁ O — [(AO) _m (EO) _n ] —R ₂ (I)
(In the formula (I), AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, m and n are average addition moles of the oxyalkylene group and oxyethylene group, respectively, 1 ≦ m ≦ 70, 1 ≦ n ≦ 70 The ratio of EO to (AO + EO) is 20 to 80% by mass, and AO and EO may be added in blocks or randomly. ₁ and R ₂ are the same or different hydrocarbon groups having 1 to 4 carbon atoms or hydrogen atoms, and the ratio of hydrogen atoms to R ₁ and R ₂ hydrocarbon groups is 0.15 or less.)   The oil-in-water skin external preparation composition according to claim 1, wherein AO and EO are randomly added to the alkylene oxide derivative represented by the formula (I). The oil-in-water type skin external preparation composition according to claim 1 or 2, further comprising (e) 0.5 to 5% by mass of erythritol.