JP2011136936A - Liquid cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a whitening liquid cosmetic containing 4-methoxy salicylic acid or a salt thereof as a whitening agent, the cosmetic being extremely improved in feeling on use (particularly stickiness and creaking) and excellent in a whitening effect. <P>SOLUTION: The liquid cosmetic includes (A) 0.7-5.0 mass% of 4-methoxy salicylic acid or a salt thereof, (B) 0.001-3.0 mass% of hyaluronic acid or a derivative thereof, and (C) 0.01-1.0 mass% of xanthane gum, based on the whole amount of the liquid cosmetic. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid cosmetic. More specifically, it is a liquid cosmetic containing 4-methoxysalicylic acid or a salt thereof, which improves the feeling of use such as stickiness and squeaking due to 4-methoxysalicylic acid or a salt thereof, and has excellent usability and whitening effect. Regarding cosmetics.

  Alkoxysalicylic acid including 4-methoxysalicylic acid is a cosmetic ingredient known as a whitening agent. Patent Document 1 discloses an external preparation for skin containing alkoxysalicylic acid as a whitening agent, and describes a lotion in which 3-methoxysalicylic acid and sodium hyaluronate are combined (0042-0045).

  However, in patent document 1, it is not studied at all that stickiness and creaking caused by blending 3-methoxysalicylic acid are suppressed by blending hyaluronic acid or xanthan gum. Further, Patent Document 1 does not envisage improving the feeling of use by combining hyaluronic acid and xanthan gum in a liquid cosmetic containing 4-methoxysalicylic acid or a salt thereof.

  Patent Document 2 discloses that stickiness and creaking are suppressed by blending a small amount (0.01 to 3% by mass) of an oil component into a liquid cosmetic containing an alkoxysalicylic acid derivative. However, in order to suppress the stickiness and squeaking of the alkoxysalicylic acid derivative, the oil component is essential, and since the amount thereof cannot be blended in a large amount, the reduction of stickiness and squeaking is not sufficient, and the feeling of use is also limited.

  In the prior art, in cosmetics containing 4-methoxysalicylic acid or a salt thereof, hyaluronic acid is usually only added as a moisturizing agent, and xanthan gum is usually added as a viscosity modifier. When 4-methoxysalicylic acid or a salt thereof, hyaluronic acid and xanthan gum are combined in combination, the use feeling and the whitening effect are not studied at all and are not assumed.

Japanese Patent No. 2722309 JP 2009-242326 A

In view of the circumstances described above, the present inventors surprisingly found that when liquid hyaluronic acid or a derivative thereof and xanthan gum were used in combination in a liquid cosmetic containing a certain amount of 4-methoxysalicylic acid or a salt thereof, 4-methoxysalicylic acid or The inventors found that the salt is excellent in the effect of reducing stickiness and creaking caused by the salt, and completed the present invention.
Furthermore, when a specific hydrophilic surfactant is also used in combination, it has been found that an excellent usability can be achieved in terms of familiarity with the skin, and the present invention has been completed.

  An object of the present invention is a liquid cosmetic composition containing 4-methoxysalicylic acid or a salt thereof as a whitening agent, which remarkably improves the feeling of use (particularly stickiness and creaking) and has an excellent whitening effect. Is to provide a fee.

  That is, in the present invention, (A) 4-methoxysalicylic acid or a salt thereof is 0.7 to 5.0% by mass, and (B) hyaluronic acid or a derivative thereof is 0.001 to 3. The present invention provides a liquid cosmetic comprising 0% by mass and 0.01 to 1.0% by mass of (C) xanthan gum.

  Moreover, this invention provides said liquid cosmetics characterized by further containing (D) hydrophilic surfactant.

  Further, in the present invention, (D) the hydrophilic surfactant is selected from the group consisting of polyoxyalkylene alkyl ether, polyoxyalkylene hydrogenated castor oil, polyoxyalkylene phytosterol, polyoxyalkylene dialkyl dimer diol ether 1 The present invention provides the above-described liquid cosmetic, which is a seed or two or more kinds.

  In addition, the present invention provides (E) the above-described liquid cosmetic, which further contains an oil, and the oil content is 5.0% by mass or less based on the total amount of the liquid cosmetic. It is.

According to the present invention, by using hyaluronic acid and xanthan gum in combination, a liquid cosmetic containing 4-methoxysalicylic acid or a salt thereof excellent in usability can be obtained. Furthermore, by using a specific hydrophilic surfactant in combination, a liquid cosmetic having an excellent usability can be obtained.
In addition, since a certain amount of 4-methoxysalicylic acid or a salt thereof can be blended into the liquid cosmetic without impairing the feeling of use, a product having an excellent whitening effect can be produced.

(A) 4-methoxysalicylic acid or a salt thereof 4-methoxysalicylic acid or a salt thereof is a known cosmetic ingredient and is known to have a whitening effect. The salt of 4-methoxysalicylic acid is not particularly limited. For example, an alkali metal salt or alkaline earth metal salt such as sodium salt, potassium salt, calcium salt, magnesium salt, ammonium salt, amino acid salt, etc. Salt.

The compounding quantity of 4-methoxy salicylic acid or its salt is 0.7-5.0 mass% with respect to liquid cosmetics whole quantity, Preferably it is 1.0-3.0 mass%. If it is less than 0.7% by mass, it is difficult to obtain a sufficient whitening effect, and if it exceeds 5.0% by mass, it tends to promote deterioration in feeling of use such as stickiness.
In the prior art, when a large amount of 4-methoxysalicylic acid or a salt thereof is added to the liquid cosmetic, the feeling of use such as stickiness has deteriorated. However, according to the present invention, 4-methoxysalicylic acid or a salt thereof can be blended in the range of 0.7 to 5.0% by mass while maintaining an excellent usability, so that a product excellent in whitening effect can be obtained. Can be designed.

(B) Hyaluronic acid or a derivative thereof Hyaluronic acid or a derivative thereof is not particularly limited, and examples thereof include hyaluronic acid or a salt thereof, acetylated hyaluronic acid or a salt thereof, and the like.
Particularly preferred are sodium hyaluronate and acetylated sodium hyaluronate. Furthermore, acetylated sodium hyaluronate is more preferred than sodium hyaluronate.

  The compounding quantity of hyaluronic acid or its derivative is 0.001-3.0 mass% with respect to liquid cosmetics whole quantity, Preferably it is 0.005-1.0 mass%. If it is less than 0.001% by mass, the effect of reducing squeakiness and stickiness is not sufficient, and if it exceeds 3.0% by mass, it tends to increase deterioration in feeling of use such as stickiness.

(C) Xanthan gum A normal commercial product can be used for xanthan gum, and its blending amount is 0.01 to 1.0% by mass, preferably 0.05 to 0.3% by mass, based on the total amount of the liquid cosmetic. It is. If it is less than 0.01% by mass, the effect of reducing squeakiness and tackiness is not sufficient, and if it exceeds 1.0% by mass, the feeling of use such as stickiness tends to be worsened.

In the present invention, it is possible to reduce stickiness and creaking due to 4-methoxysalicylic acid or a salt thereof in a liquid cosmetic by using together (B) hyaluronic acid or a derivative thereof and (C) xanthan gum.
In liquid cosmetics containing a certain amount of 4-methoxysalicylic acid or a salt thereof, (B) hyaluronic acid or a derivative thereof and (C) xanthan gum are used in combination, thereby allowing stickiness and creaking of 4-methoxysalicylic acid or a salt thereof. No study has been made so far, and this is an effect that was first studied and achieved by the present inventors.

(D) Hydrophilic surfactant The hydrophilic surfactant used in the present invention includes polyoxyalkylene alkyl ethers such as polyoxyethylene polyoxypropylene decyl tetradecyl ether, and polyoxyalkylene cured products such as polyoxyethylene hydrogenated castor oil. Castor oil, polyoxyethylene phytosterol, polyoxyalkylene phytosterols such as polyoxyethylene polyoxypropylene phytosterol, polyoxyalkylene dialkyl dimer diol ethers such as polyoxyethylene polyoxybutylene dimethyl diol ether, polyoxyethylene sorbitan monostearate, Polyoxyalkylene fatty acid sorbitans such as polyoxyethylene sorbitan monooleate, sucrose fatty acid esthetics such as sucrose stearate And fatty acid polyoxyalkylene glyceryl such as polyoxyethylene glyceryl isostearate, acylalkyl taurine salts such as stearoylmethyl taurine sodium, and polyether-modified silicones such as polyoxyethylene dimethylsiloxane.
Particularly preferred hydrophilic surfactants are selected from polyoxyethylene polyoxypropylene decyl tetradecyl ether, polyoxyethylene polyoxypropylene decyl tetradecyl ether, polyoxyethylene phytosterol, polyoxyethylene polyoxybutylene dimethyl dimer diol ether 1 It is a seed or two or more, and is excellent in use feeling such as non-stickiness and non-squeaking.

The compounding quantity of a hydrophilic surfactant is 0.01-3.0 mass% normally with respect to liquid cosmetics whole quantity, Preferably it is 0.05-1.0 mass%.
By further blending a hydrophilic surfactant, the familiarity with the skin is improved, and the oil can be solubilized and emulsified.

(E) Oil content Although it does not specifically limit as an oil content which can be mix | blended with this invention, Liquid fats and oils, solid fats and oils, wax, hydrocarbon oil, higher fatty acid, higher alcohol, ester oil, silicone oil are mentioned.
In particular, squalane, liquid paraffin, hydrogenated polydecene, isododecane, isohexadecane, isostearic acid, isostearyl alcohol, triethylhexanoin, tetraethylhexanoate pentaerythrityl, ethylhexanoate cetyl, dimethylpolysiloxane, methylphenylpolysiloxane, decamethyl Liquid oils such as cyclopentasiloxane are preferred.
However, the use of oil as α-gel combining higher alcohols with hydrophilic surfactants or higher fatty acid soaps combining higher fatty acids with metal salts increases the deterioration of the feeling of use of liquid cosmetics such as skin familiarity. It is not preferable because it tends to be.

The amount of oil must be 5.0% by mass or less based on the total amount of the liquid cosmetic. Preferably it is 0.5-3.0 mass%.
By blending oil, it is particularly moist, non-squeezed and non-sticky.

<Liquid cosmetic>
The cosmetics of the present invention are whitening cosmetics, and the effects of the present invention are preferably exerted particularly when liquid cosmetics are used. The viscosity is not limited as long as it is liquid, but it is usually 1000 mPa · s or less, particularly preferably 500 mPa · s or less, in terms of familiarity with the skin.
In addition, the dosage form of liquid cosmetics is not specifically limited, Solubilization type liquid cosmetics (skin lotion, cosmetic liquid, etc.), Two-layer liquid cosmetics (beauty liquid etc.), Oil-in-water type liquid cosmetics (lotion) , Milky lotion, serum, etc.).

In addition to the above essential components, the liquid cosmetic of the present invention is a component usually incorporated in cosmetics, for example, a whitening agent other than 4-methoxysalicylic acid or a salt thereof, an ultraviolet absorber, a surfactant, a moisturizing agent, a thickening agent. A sticking agent, alcohols, powder components, coloring materials, pH adjusting agents, stabilizers, preservatives, fragrances, various skin nutrients, and the like can be appropriately blended as necessary, and can be produced by conventional methods.
In addition, it is preferable to mix | blend humectants, such as glycerol and butylene glycol, from a viewpoint of a moisturizing effect.

  EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited by this. Unless otherwise specified, the blending amounts in the examples are indicated by mass%.

"Examples 1-14, Comparative Examples 1-6"
A cosmetic (beauty liquid) having the composition listed in “Tables 1 to 3” was prepared as a sample. A panel of 10 people applied the sample directly to the face and evaluated the skin's familiarity, moistness, non-stickiness, and squeakiness. For each test item, each specialized panel evaluated based on the following evaluation point criteria, and the evaluation criteria were set in four stages according to the total of the evaluation points. The results are also shown in each table.

[Evaluation criteria]
5 points: Excellent 4 points: Excellent 3 points: Normal 2 points: Inferior 1 point: Very inferior
[Evaluation criteria]
◎: Total score of 40 points or more ○: Total score of 30-39 points Δ: Total score of 20-29 points ×: Total score of 19 points or less

From the results shown in Tables 1 to 3, by using hyaluronic acid or a derivative thereof and xanthan gum in combination with a certain amount of 4-methoxysalicylate, a liquid cosmetic excellent in non-stickiness and non-staining is obtained. It was.
When the blending amount of hyaluronic acid or a derivative thereof or xanthan gum is small, the effect of reducing stickiness and creaking tends to be inferior (Examples 1 and 5, Comparative Examples 1 and 3). It cannot be supplemented by the formulation (Comparative Examples 5 and 6). Moreover, when there are many compounding quantities, there exists a tendency for the effect which reduces the feeling of use and stickiness, such as the familiarity to skin (Examples 4 and 7, Comparative Examples 2 and 4), and acetylated sodium hyaluronate is sodium hyaluronate. It turns out that it is more excellent in the effect which reduces stickiness and a squeak (Examples 1 and 8).
By blending with a hydrophilic surfactant, it has excellent conformability to the skin, especially polyoxyalkylene alkyl ether, polyoxyalkylene hydrogenated castor oil, polyoxyalkylene phytosterol, polyoxyalkylene dialkyl dimer diol ether are other hydrophilic properties. It turns out that it is excellent also in the feeling of use, such as a non-stickiness and a non-stain, rather than surfactant (Example 2, 9-12).
It turns out that it is excellent in the non-stickiness and the non-stain in the blending of the oil (Examples 13 and 14).

  Below, the other liquid cosmetics of this invention are shown.

Example 15 Liquid cosmetic (skin lotion)
(Compounding ingredients) (mass%)
Ethanol 10.0
PEG / polybutylene glycol-44 / 15-methyl ether hydrogenated dimer linoleyl
0.3
Methylparaben 0.1
Phenoxyethanol 0.1
Fragrance Appropriate Glycerin 2.0
PEG / PPG-14 / 7 dimethyl ether 3.0
Dipropylene glycol 1.0
1,3-butylene glycol 5.0
4-methoxysalicylic acid potassium salt 3.0
Ascorbic acid glucoside 2.0
Dipotassium glycyrrhizinate 0.05
Vitamin C ethyl 0.3
Sodium hyaluronate 1.0
Xanthan gum 0.2
Citric acid Appropriate amount Sodium citrate Appropriate amount edetate Appropriate amount of ion-exchanged water Residue

Example 16 Liquid cosmetic (beauty liquid)
(Compounding ingredients) (mass%)
Polyglyceryl diisostearate0.2
Polyoxyethylene (60) hydrogenated castor oil 0.2
Triethylhexanoin 0.3
Isostearic acid 0.1
Methylparaben 0.2
Ethylparaben 0.2
Glycerin 3.0
1,3-butylene glycol 9.0
4-methoxysalicylic acid potassium salt 2.0
Acetylated hyaluronic acid 2.0
Xanthan gum 0.05
Citric acid Appropriate amount Sodium citrate Appropriate amount edetate Appropriate amount of ion-exchanged water Residue

Example 17 Liquid cosmetic (beauty liquid)
(Compounding ingredients) (mass%)
Ethanol 5.0
Dipropylene glycol 1.0
1,3-butylene glycol 0.6
Polyethylene glycol 1000 1.0
Polyethylene ethylene glucoside 1.0
Isostearic acid 0.2
Triethylhexanoin 0.3
Polyoxyethylene (30) phytosterol 0.09
Sorbitan sesquiisostearate 0.03
4-methoxysalicylic acid potassium salt 3.0
Tranexamic acid 3.0
Carboxyvinyl polymer 0.1
Xanthan gum 0.01
Acetylated sodium hyaluronate 0.2
Sodium hyaluronate 0.05
Caustic potash appropriate amount edetate appropriate amount ion-exchanged water remaining

Example 18 Liquid cosmetic (milky lotion)
(Compounding ingredients) (mass%)
Cyclomethicone 1.0
Dimethicone 1.0
Cetyl octanoate 1.0
(Acrylic acid / alkyl acrylate (C10-30)) copolymer
0.2
Hydroxyethyl cellulose 0.1
Glycerin 9.0
Propylene glycol 5.0
Sodium hyaluronate 0.1
Xanthan gum 0.1
4-methoxysalicylic acid potassium salt 1.5
Tocopherol acetate 0.5
Nicotinamide 4.0
Dipotassium glycyrrhizinate 0.05
Aminomethylpropanol Appropriate amount Sodium metaphosphate Appropriate amount of ion-exchanged water Residual

  The present invention relates to a liquid cosmetic containing 4-methoxysalicylic acid or a salt thereof, which improves the feeling of use such as stickiness and squeak due to 4-methoxysalicylic acid or a salt thereof, and has an excellent usability and whitening effect. It is. The liquid cosmetic composition of the present invention is suitably used mainly as a whitening lotion, cosmetic liquid or emulsion.

Claims (4)

  (A) 4-methoxysalicylic acid or a salt thereof is 0.7 to 5.0% by mass, (B) hyaluronic acid or a derivative thereof is 0.001 to 3.0% by mass with respect to the total amount of the liquid cosmetic, (C ) A liquid cosmetic comprising xanthan gum in an amount of 0.01 to 1.0% by mass.   The liquid cosmetic according to claim 1, further comprising (D) a hydrophilic surfactant.   The hydrophilic surfactant (D) is one or more selected from the group consisting of polyoxyalkylene alkyl ether, polyoxyalkylene hydrogenated castor oil, polyoxyalkylene phytosterol, polyoxyalkylene dialkyl dimer diol ether. The liquid cosmetic according to claim 1, wherein the liquid cosmetic is provided.   The liquid cosmetic according to any one of claims 1 to 3, further comprising (E) an oil, wherein the oil content is 5.0% by mass or less based on the total amount of the liquid cosmetic. .