JP6139867B2 - Skin cosmetics - Google Patents

Description

  The present invention relates to a skin cosmetic.

In skin cosmetics, various active ingredients exhibiting a whitening action, an anti-inflammatory action and the like are blended and percutaneously absorbed to obtain the effect. However, if the active ingredient is simply blended into the cosmetic, it cannot be absorbed percutaneously and it is difficult to obtain the original effect of the ingredient.
On the other hand, oil-in-water emulsified cosmetics have a problem of stably emulsifying and blending oil-soluble ingredients, and various studies have been made. For example, Patent Documents 1 to 3 describe emulsification using a cationic surfactant.

JP 2004-217616 A JP 2006-36763 A JP 2007-112808 A

  The present inventor has found that when a cationic surfactant is used, the resulting composition becomes hard and difficult to spread on the skin, and there are problems in the feeling of use such as sliminess and stickiness.

  By using a specific cationic surfactant in combination with a nonionic surfactant, a specific oil and a higher alcohol, the present inventors have excellent stability and improve the transdermal absorption effect of the active ingredient. The present inventors have found that a skin cosmetic having a good feeling of use can be obtained.

The present invention includes the following components (A), (B), (C), (D), (E) and (F):
(A) The following general formula (1)

(In the formula, R ¹ and R ² are the same or different and each represents a linear or branched saturated or unsaturated hydrocarbon group having 16 to 22 carbon atoms, and R ³ and R ⁴ are the same or different and represent carbon. Represents an alkyl group of 1 to 3, and X ⁻ represents a salt-forming anion)
0.1 to 1% by mass of a cationic surfactant represented by
(B) HLB 12.5-15 nonionic surfactant,
(C) 1 to 10% by mass of an oil agent having an SP value of 15.5 to 18.5 and selected from ester oil and ether oil which are liquid at 25 ° C.
(D) 0.7-2 mass% higher alcohol,
(E) Compound having an SP value of 23 to 30 0.0001 to 0.1% by mass,
(F) The skin cosmetics which contain water and whose mass ratio (A) / (B) of a component (A) and a component (B) is 0.5-5 are provided.

  The skin cosmetic of the present invention has improved permeability of oil-soluble components, excellent usability, and good stability.

The component (A) cationic surfactant used in the present invention is represented by the general formula (1), and can improve the permeability of the oil-soluble component.
In the formula (1), examples of the hydrocarbon group represented by R ¹ and R ² include linear or branched alkyl groups or alkenyl groups. Examples of salt-forming anions include halogen ions, phosphate ions, acetate ions, lactate ions, monoalkyl sulfate ions, and the like.

  Specific examples of the cationic surfactant include dicetyldimethylammonium chloride, distearyldimethylammonium chloride, diaralkyldimethylammonium chloride, dibehenyldimethylammonium chloride, and the like. Of these, dicetyldimethylammonium chloride, distearyldimethylammonium chloride and the like are preferable from the viewpoint of affinity for the skin. Examples of these commercially available products include VARISOFT 432 PPG (Evonik) and VARISOFT TA 100 (EVONIK Evonik).

  Component (A) can be used alone or in combination of two or more, and the content is the total composition from the viewpoint of improving the permeability of component (E) described later and improving the stability of the emulsion composition. It is 0.1% by mass or more, preferably 0.2% by mass or more, preferably 1% by mass or less, and preferably 0.6% by mass or less. Moreover, content of a component (A) is 0.1-1 mass% in the whole composition, and 0.2-0.6 mass% is preferable.

  The nonionic surfactant of the component (B) used in the present invention can improve the spread of the cosmetic at the time of application, and is HLB 12.5-15, and preferably HLB 12.5-14.

Here, HLB (hydrophilic-lipophilic balance <Hydrophilic-Lypophilic Balance>) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant. For nonionic surfactants, Griffin ( Griffin).
The HLB of the mixed surfactant composed of two or more kinds of nonionic surfactants is obtained as follows. The HLB of the mixed surfactant is obtained by averaging the HLB values of the nonionic surfactants based on the blending ratio.

Mixed HLB = Σ (HLBx × Wx) / ΣWx
HLBx indicates the HLB value of the nonionic surfactant X.
Wx represents the mass (g) of the nonionic surfactant X having a value of HLBx.

Examples of the nonionic surfactant of the component (B) include sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyethylene fatty acid ester, poly Oxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene Hardened castor oil fatty acid ester, polyoxyethylene phytostanol ether, polyoxyethylene phytosterol Ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, polyoxyalkylene-modified organopolysiloxane, polyoxyalkylene-alkyl co-modified organopolysiloxanes, and the like.
Of these, polyoxyethylene alkyl ether and polyoxyethylene hydrogenated castor oil are preferred.

  Component (B) can be used alone or in combination of two or more, and the content improves the spread of the cosmetic when applied in combination with a cationic active agent, and the feeling of use (no sliminess, From the point of improvement of non-stickiness), 0.02% by mass or more is preferable in the total composition, 0.07% by mass or more is more preferable, 2% by mass or less is preferable, and 0.4% by mass or less is more preferable. Moreover, 0.02-2 mass% is preferable in the whole composition, and, as for content of a component (B), 0.07-0.4 mass% is more preferable.

  In the skin cosmetic of the present invention, the mass ratio (A) / (B) of the components (A) and (B) is 0.5 or more from the viewpoint of improving the permeability and the spread when the cosmetic is applied. 1.5 or more, preferably 5 or less, and preferably 3 or less. Moreover, mass ratio (A) / (B) of component (A) and (B) is 0.5-5, and 1.5-3 are preferable.

The oil agent of the component (C) used in the present invention has an SP value of 15.5 to 18.5 from the viewpoint of improving the permeability of the oil-soluble component, and from the viewpoint of permeability and system stability, Those of 16.3 to 18.2 are more preferable.
Here, the SP value is a solubility parameter δ, which is a material constant given by δ = (E / V) ^1/2 (J / cm ³ ) from the molecular cohesive energy E and molecular volume V of the liquid. The SP value can be determined by various methods. In the present invention, the method of Fedors (J. BRANDRUP, “POLYMER HANDBOOK 4 ^th ”, JHON WILEY & SONS, INC, 1999, published in paragraphs VII685 to 686) and It calculated | required using computer software Molecular modeling Pro (Norgwyn Montgomery Software Inc.).

The oil agent of component (C) is selected from ester oil and ether oil that are liquid at 25 ° C. Such oil agents can be used without limitation as long as they are used in ordinary cosmetics.
Examples of the oil include diisostearyl malate (SP value: 18.17), octyldodecyl lactate (SP value: 18.53), isononyl isononanoate (SP value: 16.44), and isotridecyl isononanoate (SP). Value: 16.56), octyldodecyl myristate (SP value: 16.74), isopropyl palmitate (SP value: 16.75), isopropyl isostearate (SP value: 16.63), butyl stearate (SP value) : 16.74), myristyl myristate (SP value: 16.75), isopropyl myristate (SP value: 17.0), octyldodecyl myristate (SP value: 16.74), neopentyl glycol dicaprate (SP) Value: 18.15), tricaproine, pentaerythrityl 2-ethylhexanoate Ester oils such as medfoam oil and olive oil (SP value: 16.3); cetyl-1,3-dimethylbutyl ether (SP value: 16.57), cetyl isobutyl ether (SP value: 16.83), dioctyl ether ( And ether oils such as SP value: 16.85).

  As the oil agent of component (C), olive oil, cetyl-1,3-dimethylbutyl ether, neopentyl glycol dicaprate and the like are preferable from the viewpoint of the permeability of the oil-soluble component and the stability of the system, and olive oil, cetyl-1, 3-dimethylbutyl ether is more preferred.

  Component (C) can be used singly or in combination of two or more, and the content is 1% by mass or more in the total composition from the viewpoint of improving the permeability of component (E) described later and the feeling of use. 2 mass% or more is preferable, 4 mass% or more is more preferable, it is 10 mass% or less, 8 mass% or less is preferable, and 7 mass% or less is more preferable. Moreover, content of a component (C) is 1-10 mass% in the whole composition, 2-8 mass% is preferable, and 4-7 mass% is more preferable.

The higher alcohol of component (D) is preferably a higher alcohol having 12 to 22 carbon atoms, more preferably a linear higher alcohol having 14 to 18 carbon atoms, and can improve the permeability of the oil-soluble component.
Examples of component (D) include myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol and the like. Of these, cetyl alcohol and stearyl alcohol are preferred.

  Component (D) can be used singly or in combination of two or more. From the viewpoint of improving the penetrability of oil-soluble components and the feeling of use (stickiness, sliminess), the content is in the total composition. It is 0.7 mass% or more, preferably 1.3 mass% or more, preferably 2 mass% or less, and preferably 1.7 mass% or less. Moreover, content of a component (D) is 0.7-2 mass% in the whole composition, and 1.3-1.7 mass% is preferable.

  In the skin cosmetic of the present invention, the mass ratio (A) / (D) of the components (A) and (D) is preferably 0.1 or more from the viewpoint of the permeability of the component (E). 24 or more is more preferable, 0.57 or less is preferable, and 0.3 or less is more preferable. Moreover, 0.1-0.57 are preferable and, as for mass ratio (A) / (D) of a component (A) and (D), 0.24-0.3 are more preferable.

Component (E) is a compound having an SP value of 23-30.
Examples of the component (E) include useful components such as a whitening agent, an anti-inflammatory agent, and a blood circulation promoter. In the present invention, by using the components (A) to (D) in combination at a specific ratio, the permeability of these useful components can be improved.
In addition, SP value of a component (E) is calculated | required by the method similar to a component (C).

  Examples of the compound having such SP value include Nile Red (SP value = 23.6), spiro ether represented by the following formula (2) (SP value = 23.64), and flavanone (SP value = 24.49). ), Flavone (SP value = 25.2), apigenin (SP value = 29.4), and the like.

(Wherein the wavy line indicates that the binding state may be either Z or E)
As the component (E), a whitening agent is preferable. Moreover, as a component, the spiro ether and apigenin represented by following formula (2) are more preferable.
In the present invention, the component (E) may be mixed in the mixture of the components (A) to (D) and (F) in order to penetrate the skin, and is dispersed and dissolved in the component (C). Or may be dispersed in the component (F). Therefore, it is not greatly influenced by the manufacturing method.

  Further, the content of the component (E) is preferably as long as the permeability is taken into consideration, but is 0.0001% by mass or more, preferably 0.001% by mass or more, and preferably 0.1% by mass in the total composition. % Or less is preferable, and 0.09 mass% or less is preferable. Moreover, content of a component (E) is 0.0001-0.1 mass% in the whole composition, and 0.001-0.09 mass% is preferable.

  The water content of the component (F) is preferably 30% by mass or more, more preferably 45% by mass or more, and preferably 95% by mass or less in the total composition from the viewpoint of freshness on the skin. 90 mass% or less is more preferable. Moreover, 30-95 mass% is preferable in the whole composition, and, as for content of water, 45-90 mass% is more preferable.

The skin cosmetic of the present invention can further contain (G) dimethylpolysiloxane, can suppress stickiness during application, and can improve smoothness during application.
The component (G) dimethylpolysiloxane preferably has a viscosity at 25 ° C. of 5 to 7 mm ² / s.

  Component (G) can be used alone or in combination of two or more, and the content is 0.1% by mass in the total composition from the point of suppressing stickiness during coating and improving smoothness during coating. The above is preferable, 0.5 mass% or more is more preferable, 0.8 mass% or more is further preferable, 5 mass% or less is preferable, 3 mass% or less is more preferable, and 1.5 mass% or less is further preferable. Moreover, 0.1-5 mass% is preferable in the whole composition, content of a component (G) has more preferable 0.5-3 mass%, and 0.8-1.5 mass% is still more preferable.

The skin cosmetic of the present invention can further contain (H) a crosslinked methylpolysiloxane, and can improve the smoothness of the skin after application.
Cross-linked methylpolysiloxane is a (dimethicone / vinyl dimethicone) crosspolymer (INCI name) and can be produced according to a conventional method. The cross-linked methylpolysiloxane is a silicone powder that is insoluble in water, alcohol, oil, etc., and preferably has a number average particle size of 1 to 30 μm, more preferably 2 to 6 μm.

  Component (H) may be blended as a powder. For example, KM9729 (Shin-Etsu Chemical Co., Ltd.); Trefil E-506c, Trefil E-508 (Toray Dow Corning), etc. are mentioned. Moreover, it can also mix | blend as a dispersion liquid disperse | distributed using surfactant etc. in various solvents. As such a dispersion, for example, commercially available products such as silicone BY29-119 and silicone BY29-129 (Toray Dow Corning) can be used.

  Component (H) can be used singly or in combination of two or more, and the content is preferably 1% by mass or more, preferably 2% by mass or more in the total composition from the point of smoothness of the skin after application. Is more preferably 3% by mass or more, preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 6% by mass or less. Moreover, 1-10 mass% is preferable in the whole composition, as for content of a component (H), 2-8 mass% is more preferable, and 3-6 mass% is still more preferable.

The skin cosmetic of the present invention can further contain a polyhydric alcohol. In addition to functioning as a dispersant such as the component (E), a moisturizing effect can be imparted.
Examples of the polyhydric alcohol include glycerin, diglycerin, polyethylene glycol, 1,3-butylene glycol, isoprene glycol, propylene glycol, and dipropylene glycol.
The polyhydric alcohol can be used singly or in combination of two or more, and the content is preferably 0.1% by mass or more, more preferably 1% by mass or more, and 30% by mass from the viewpoint of the dispersant and the feeling of use. The following is preferable, and 25% by mass or less is more preferable. Moreover, 0.1-30 mass% is preferable in the whole composition, and, as for content of a polyhydric alcohol, 1-25 mass% is more preferable.

  The skin cosmetic of the present invention can contain other components used in ordinary cosmetics in addition to the above components. For example, oily components other than the above, nonionic surfactants other than the above, anionic surfactants, amphoteric surfactants, lower alcohols, humectants, water-soluble polymers, antioxidants, preservatives, chelating agents, UV absorption Agents, powders, fragrances, coloring materials, whitening agents other than component (E), vitamins other than component (E), and various other medicinal components other than component (E).

The skin cosmetic of the present invention can produce an oil-in-water emulsified cosmetic by any of the following methods.
(Manufacturing method 1)
Step 1: A step of heating the oil phase containing the components (A) to (E) and other oil agent components to a temperature equal to or higher than the component having the highest melting point and stirring to obtain a mixture (1).
Step 2: A step of mixing the component (F) and other water-soluble components, heating to about the same temperature as the mixture (1), and mixing with the mixture (1) to obtain the mixture (2).
Process 3: The process of cooling a mixture (2) to 15-35 degreeC.

(Manufacturing method 2)
Step 1: A step of heating the oil phase containing the components (A) to (D) and other oil agent components to a temperature equal to or higher than the component having the highest melting point and stirring to obtain a mixture (3).
Process 2: The process of mixing a component (F) and another water-soluble component, heating to substantially the same temperature as a mixture (3), and mixing with a mixture (3), and obtaining a mixture (4).
Process 3: The process of cooling a mixture (4) to 15-35 degreeC, mixing a component (E), and making it uniform.
In consideration of the stability of the component (E), the production method 2 is preferable.

The skin cosmetics of the present invention can be applied as skin cosmetics such as makeup bases, sunscreen cosmetics, lotions, creams, milky lotions, and lotions.
When performing skin care using the skin cosmetic of the present invention, the skin cosmetic of the present invention can be applied to the skin and stretched thinly. By doing in this way, the active ingredient in cosmetics can be penetrated into skin.
This invention discloses the following compositions, manufacturing methods, and usage methods further regarding embodiment mentioned above.

<1> The following components (A), (B), (C), (D), (E) and (F):
(A) The following general formula (1)

(In the formula, R ¹ and R ² are the same or different and each represents a linear or branched saturated or unsaturated hydrocarbon group having 16 to 22 carbon atoms, and R ³ and R ⁴ are the same or different and represent carbon. Represents an alkyl group of 1 to 3, and X ⁻ represents a salt-forming anion)
0.1 to 1% by mass of a cationic surfactant represented by
(B) HLB 12.5-15 nonionic surfactant,
(C) 1 to 10% by mass of an oil agent selected from ester oil and ether oil which are liquid at 25 ° C.
(D) 0.7-2 mass% higher alcohol,
(E) Compound having an SP value of 23 to 30 0.0001 to 0.1% by mass,
(F) A skin cosmetic containing water and having a mass ratio (A) / (B) of the component (A) to the component (B) of 0.5 to 5.

<2> Component (A) is distearyldimethylammonium chloride, and its content is preferably 0.1 to 1% by mass, and 0.2 to 0.6% by mass in the total composition. The skin cosmetic according to <1>, which is more preferable.
<3> Component (B) is at least one or two or more selected from polyoxyethylene alkyl ether and polyoxyethylene hydrogenated castor oil, and the content thereof is preferably 0.02 mass in the total composition. % Or more, 0.07% by mass or more is more preferable, 2% by mass or less is preferable, and 0.4% by mass or less is more preferable. The skin cosmetic according to <1> or <2>.
<4> The skin cosmetic according to any one of <1> to <3>, wherein the oil of component (C) has an SP value of 15.5 to 18.5, and preferably 16.3 to 18.2. .

<5> Component (C) is olive oil, cetyl-1,3-dimethylbutyl ether, or neopentyl glycol dicaprate, preferably at least one or two selected from olive oil and cetyl-1,3-dimethylbutyl ether The content thereof is 1% by mass or more in the total composition, preferably 2% by mass or more, more preferably 4% by mass or more, and preferably 10% by mass or less, preferably 8% by mass or less, The skin cosmetic according to any one of <1> to <4>, wherein the content is more preferably at most% by mass.
<6> The skin cosmetic according to any one of <1> to <5>, wherein the component (D) is a higher alcohol having 12 to 22 carbon atoms, and preferably cetyl alcohol and stearyl alcohol.
<7> Component (E) is Nile Red, Formula (2)

(Wherein the wavy line indicates that the binding state may be either Z or E)
And at least one or more selected from spiroether, flavanone, flavone and apigenin, the content of which is 0.0001% by mass or more, preferably 0.001% by mass or more, and 1 mass% or less is preferable and 0.09 mass% or less is preferable The skin cosmetics in any one of said <1>-<6>.
<8> Mass ratio (A) / (D) of component (A) to component (D) is 0.1 to 0.57, and preferably 0.24 to 0.3 <1> to <7 > The skin cosmetic according to any one of the above.
<9> Furthermore, (G) dimethylpolysiloxane is contained, and the content thereof is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and more preferably 0.8% by mass or more in the total composition. The skin cosmetic according to any one of <1> to <8>, more preferably 5% by mass or less, more preferably 3% by mass or less, and further preferably 1.5% by mass or less.

<10> Further, (H) a crosslinked methylpolysiloxane is contained, and the number average particle diameter of the crosslinked methylpolysiloxane is 1 to 30 μm, preferably 2 to 6 μm. Preferably it is 1 mass% or more, 2 mass% or more is more preferable, 3 mass% or more is further more preferable, 10 mass% or less is preferable, 8 mass% or less is more preferable, and 6 mass% or less is further more preferable <1 The skin cosmetic according to any one of> to <9>.
<11> Use for skin care in which the skin cosmetic according to any one of <1> to <10> is applied to the skin and retained on the skin.

<12> The method for producing a skin cosmetic according to any one of <1> to <10>, comprising the following steps.
Step 1: A step of heating the oil phase containing the components (A) to (E) and other oil agent components to a temperature higher than the highest melting point of the components and stirring to obtain a mixture (1).
Step 2: A step of mixing the component (F) and other water-soluble components, heating to about the same temperature as the mixture (1), and mixing with the mixture (1) to obtain the mixture (2).
Process 3: The process of cooling a mixture (2) to 15-35 degreeC.

<13> The method for producing a skin cosmetic according to any one of <1> to <10>, comprising the following steps.
Step 1: A step of heating an oil phase containing the components (A) to (D) and other oil agent components to a temperature higher than the highest melting point of the components and stirring to obtain a mixture (3).
Process 2: The process of mixing a component (F) and another water-soluble component, heating to substantially the same temperature as a mixture (3), and mixing with a mixture (3), and obtaining a mixture (4).
Process 3: The process of cooling a mixture (4) to 15-35 degreeC, mixing a component (E), and making it uniform.

Examples 1-14, Comparative Examples 1-5
Manufactures oil-in-water emulsified cosmetics having the compositions shown in Tables 1 to 4 and has penetrability, storage stability and feeling of use (spreading when applied, not slimy, not sticky, smooth when applied, skin after application Smoothness). The results are also shown in Tables 1 to 4.

(Production method)
(1) When component (E) is apigenin:
Components (A) to (D), (G), and (H) were mixed, heated to 80 ° C., and stirred to make uniform. To this mixture, component (F) heated to 80 ° C. (excluding 1% by mass from component (F)) was added and stirred to make it uniform. Then, it cooled to 25 degreeC, stirring, and obtained the emulsion. This emulsion was mixed with a mixture of component (E) apigenin, 1,3-butylene glycol and component (F) 1% by mass to obtain a uniform oil-in-water emulsion cosmetic.

(2) When component (E) is Nile Red:
Components (A) to (E) were mixed, heated to 80 ° C., and stirred to make uniform. To this mixture, component (F) heated to 80 ° C. was added and stirred to make it uniform. Then, it cooled to 25 degreeC, stirring, and obtained the oil-in-water type emulsion cosmetic.

(Evaluation method)
(1) Permeability:
(i) After washing the pork skin (Landlace candy) with a face wash (Sofina Beaute milk face wash, manufactured by Kao), wipe off the water and leave the skin surface in a mixture of acetone / ether (1/1) for 3 minutes. Soaked.
(ii) Pork skin is sandwiched between Franz diffusion cells, and each cosmetic material containing an evaluation substance (apigenin or Nile red) on the surface side is applied to 0.4 mL / cm ² , in an environment of 30 ° C. For 16 hours.
(iii) The surface of the pig skin is washed away with a facial cleanser (Sofina Beaute milk facial cleanser, manufactured by Kao Corporation) to remove cosmetics, the skin is cut out with a biopsy punch (8 mmΦ), soaked in 1.5 mL of extraction solvent, and subjected to ultrasound. The test substance (Apigenin or Nile Red) that permeated into the pig skin was extracted and quantified. The HPLC conditions for quantifying the evaluation substance are as follows.

(Apigenin analysis conditions)
Extraction solvent: 60% 1,3-butylene glycol Column: GL Science insertsil ODS3 (5 μm: 3.0 × 150 mm)
Eluent: 25 mM aqueous potassium hydrogen phosphate / methanol (= 1/1)
Flow rate: 0.5mL / min
Temperature: 40 ° C
Detection: UV340nm
Analysis time: 20min
Injection volume: 10μL
In addition, the penetration amount of apigenin was described with the value of Comparative Example 1 as 1, and the relative value as a result.

(Nile Red analysis conditions)
Extraction solvent: 55% ethanol column: GL Science insertsil ODS3 (5 μm: 4.0 × 150 mm)
Eluent: acetonitrile / methanol (= 9/1)
Flow rate: 1.0 mL / min
Temperature: 40 ° C
Detection: Ex: 550 nm Em: 650 nm
Analysis time: 10min
Injection volume: 10μL
In addition, the penetration amount of Nile Red was described with the value of Comparative Example 5 as 1, and the relative value as a result.

(2) Storage stability:
Each cosmetic was filled in a glass bottle and stored at room temperature for 1 month, and then the appearance was visually observed to evaluate the presence or absence of separation. Uniform and non-separated samples are indicated by “◯”, and separated samples are indicated by “x”.

(3) Usability:
Ten professional panelists applied 0.3 g of each cosmetic on the face and spread it over the entire face by hand. At this time, sensory evaluation was performed on the spread at the time of application, not slimy, not sticky, and the smoothness at the time of application. Furthermore, 3 minutes after application | coating, sensory evaluation was carried out about the smoothness of the skin after application | coating. The results are shown in terms of the number of people with good evaluation.

Claims (6)

The following components (A), (B), (C), (D), (E) and (F):
(A) The following general formula (1)

(In the formula, R ¹ and R ² are the same or different and each represents a linear or branched saturated or unsaturated hydrocarbon group having 16 to 22 carbon atoms, and R ³ and R ⁴ are the same or different and represent carbon. Represents an alkyl group of 1 to 3, X- represents a salt-forming anion)
0.1 to 1% by mass of a cationic surfactant represented by
(B) HLB 12.5-15 nonionic surfactant,
(C) 1 to 10% by mass of an oil agent having an SP value of 15.5 to 18.5 and selected from ester oil and ether oil which are liquid at 25 ° C.
(D) 0.7-2 mass% higher alcohol,
(E) Whitening agent having an SP value of 23 to 30 0.0001 to 0.1% by mass,
(F) A skin cosmetic containing water and having a mass ratio (A) / (B) of the component (A) to the component (B) of 0.5 to 5.   The skin cosmetic according to claim 1, wherein the mass ratio (A) / (D) of the component (A) to the component (D) is 0.1 to 0.57.   The skin cosmetic according to claim 1 or 2, further comprising (G) dimethylpolysiloxane.   The skin cosmetic according to any one of claims 1 to 3, further comprising (H) a crosslinked methylpolysiloxane.   Use for skin care which apply | coats and extends the skin cosmetics of any one of Claims 1-4 to skin. The manufacturing method of the skin cosmetics of any one of Claims 1-4 provided with the following processes.
Step 1: A step of mixing components (A) to (D) and heating to a temperature equal to or higher than the melting point of each component (mixture (3)).
Process 2: A process (mixture (4)) which mixes a component (F) and another water-soluble component, is heated to substantially the same temperature as the mixture (3), and mixes with the mixture (3).
Process 3: The process of cooling a mixture (4) to room temperature, mixing a component (E), and making it uniform.