JP7377526B2 - Skin cosmetic composition - Google Patents

Description

The present invention relates to a skin cosmetic composition, and particularly to a skin cosmetic composition that imparts a moist and elastic feel to the skin and has a good long-lasting moist feeling.

Conventionally, skin cosmetic compositions have been required to improve skin conditions such as dryness and rough skin. Polyhydric alcohols, vegetable oils, etc. have been used as ingredients to improve dryness and rough skin.

In recent years, as consumers' awareness of safety and health has increased, lactic acid bacteria, which exist in the human body and play a beneficial role, have attracted attention. Lactic acid bacteria are known as safe materials with intestinal regulating effects and immune enhancement, and yogurts and drinks containing large amounts of lactic acid bacteria are widely supported by consumers as being good for health and beauty. Recently, these lactic acid bacteria have also been used as raw materials for cosmetics aimed at improving skin conditions.

Patent Document 1 discloses that applying a cosmetic composition containing heat-treated killed bacteria of Enterococcus lactic acid bacteria to the skin improves the moist feel and firmness of the skin. Disclosed.

Patent Document 2 discloses that the skin moisturizing effect is enhanced by applying a cosmetic composition containing an enzyme-treated culture of Lactobacillus Crispatus to the skin. There is.

JP 2017-101006 Publication Japanese Patent Application Publication No. 2015-40201

Skin cosmetic compositions are required not only to improve the skin condition when applied to the skin, but also to maintain their effects.

However, although the cosmetic compositions described in Patent Document 1 and Patent Document 2 impart a moist and firm feel to the skin, the effect is temporary, and in particular, the sustainability of the moist feeling is insufficient. Ta.

An object of the present invention is to provide a skin cosmetic composition that imparts a moist and elastic feel to the skin and has a good long-lasting moist feeling.

The present inventor has proposed a method containing at least one species selected from (A) Lactobacillus of the genus Enterococcus and (B) Lactobacillus of the genus Lactobacillus, and (C) one or more species selected from amino acid derivatives; A skin cosmetic composition that imparts a moist and elastic feel to the skin and has a good long-lasting moist feeling, with the content of component (C) being 0.002 to 1% by mass. The present inventors have discovered that the following can be obtained, and have completed the present invention.

ADVANTAGE OF THE INVENTION According to the present invention, a skin cosmetic composition that imparts a moist and elastic feel to the skin and has a good long-lasting moist feeling has been obtained.

The present invention will be explained in detail below.

The present invention contains at least one species selected from (A) Lactobacillus of the genus Enterococcus and (B) Lactobacillus of the genus Lactobacillus, and (C) one or more species selected from amino acid derivatives, and (C) at least one species selected from amino acid derivatives; A skin cosmetic composition in which the content of component C) is 0.002 to 1% by mass.

The present invention contains (A) lactic acid cocci of the genus Enterococcus from the viewpoint of imparting a moist feeling and the sustainability of the moist feeling.

The component (A) of the present invention is a killed bacterial cell of lactic acid coccus of the genus Enterococcus.

The component (A) used in the present invention is not particularly limited, but includes, for example, Enterococcus faecalis, Enterococcus faecium, Enterococcus avium, and Enterococcus gallium. Enterococcus gallinarum ), Enterococcus casseliflavus, etc., and the component (A) may contain one or more types.

Among the components (A) used in the present invention, Enterococcus faecalis is preferred from the viewpoint of improving the moist feeling and the sustainability of the moist feeling.

The content of the component (A) used in the present invention is preferably 0.0001 to 2% by mass, more preferably 0.0005 to 1% by mass, and still more preferably 0.001 to 1% by mass. When the amount of component (A) is less than 0.0001% by mass, there is a possibility that a moist feeling cannot be imparted. When the amount of component (A) exceeds 1% by mass, no further improvement in moist feeling is observed.

The present invention contains (B) Lactobacillus lactobacillus from the viewpoint of imparting a moist feeling and the sustainability of the moist feeling.

The component (B) of the present invention is a killed bacterial cell of Lactobacillus lactobacillus.

The component (B) used in the present invention is not particularly limited, but includes, for example, Lactobacillus crispatus, Lactobacillus casei, Lactobacillus fermentum, Lactobacillus - Examples include Lactobacillus paracasei, Lactobacillus brevis, Lactobacillus rhamnosus, etc., and the component (B) may contain one or more types.

Among the components (B) used in the present invention, Lactobacillus crispatus is preferred from the viewpoint of imparting a moist feeling and the sustainability of the moist feeling.

The content of the component (B) used in the present invention is preferably 0.0001 to 2% by mass, more preferably 0.0005 to 1% by mass, and even more preferably 0.001 to 1% by mass. When the amount of component (B) is less than 0.0001% by mass, there is a possibility that a moist feeling cannot be imparted. When the amount of component (B) exceeds 1% by mass, no further improvement in moist feeling is observed.

By containing the component (A) and the component (B) used in the present invention, the sustainability of the moist feeling can be improved.

The content of the component (A) and the component (B) used in the present invention is preferably 0.0002 to 2% by mass, more preferably 0.001 to 2% by mass, and even more preferably 0.002 to 2% by mass. Mass% is good.

The present invention contains (C) an amino acid derivative from the viewpoint of imparting a chewy feel.

The component (C) used in the present invention is not particularly limited, but includes, for example, alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, and methionine in one molecule. , phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, etc., and salts thereof, and may contain one or more of the component (C). As the component (C), arginine derivatives and glycine derivatives are particularly preferable from the viewpoint of imparting a chewy feel.

The arginine derivatives are not particularly limited, but include, for example, dihydroxypropyl arginine HCl, cocoyl arginine ethylpyrrolidone carboxylic acid, arginine pyrrolidone carboxylate, arginine aspartate, acetyl arginine, arginine HCl, arginine glutamate, and the like.

Examples of the glycine derivative include, but are not limited to, capryloylglycine, trimethylglycine, glycylglycine, cocoylglycine triethanolamine, lauryl aminopropylglycine, lauroylglycine triethanolamine, and the like.

Among the components (C) used in the present invention, a combination of dihydroxypropyl arginine HCl and capryloylglycine is preferred from the viewpoint of improving the chewy feeling.

The content of the component (C) used in the present invention is preferably 0.002 to 1% by mass, more preferably 0.02 to 1% by mass. When the amount of the component (C) is less than 0.002% by mass, there is a possibility that a chewy feeling cannot be imparted. If the content of component (C) exceeds 1% by mass, stickiness may occur and the feeling of use may be impaired.

The skin cosmetic composition according to the present invention preferably has a viscosity of 500 to 35,000 mPa·s at 20° C. from the viewpoint of feeling when applied.

In the present invention, the viscosity is determined by preparing the skin cosmetic composition using a conventional method, filling 120 g of the obtained skin cosmetic composition into a sample bottle (Food 140, manufactured by Daiichi Glass Co., Ltd.), and using a B-type viscometer with a helical stand (model; Measurement is performed using a digital viscometer TVB-10M (manufactured by Toki Sangyo Co., Ltd.) under the conditions of a rotation speed of 12 rpm and 20° C. for 1 minute with a No. M4 rotor.

From the viewpoint of stability, the skin cosmetic composition according to the present invention preferably has a pH of 4 to 8, more preferably 5 to 7, at 20°C.

In the present invention, the pH is adjusted by a conventional method, and 120 g of the obtained skin cosmetic composition is filled into a sample bottle (Food 140, manufactured by Daiichi Glass Co., Ltd.), and a glass electrode type hydrogen ion concentration indicator (F -71: manufactured by Horiba, Ltd.) to measure the pH of the stock solution at 20°C.

In addition to the above-mentioned essential ingredients, the skin cosmetic composition of the present invention contains various ingredients used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc., such as other surfactants, oily ingredients, humectants, and thickeners. agents, chelating agents, medicinal ingredients, protein derivatives, hydrolyzed proteins, stabilizers, antioxidants, botanical extracts, crude drug extracts, vitamins, fragrances, preservatives, dyes, pigments, powders, pH adjusters , ultraviolet absorbers, etc., may be contained within a range that does not impair the effect. However, the present invention is not limited to these examples.

The present invention will be explained in more detail with reference to Examples below, but these are not intended to limit the present invention in any way.

In the evaluation test shown in this specification, the components contained in the skin cosmetic composition and their contents were variously changed. All units indicating the content of each component are mass %, and were prepared by a conventional method.

In the evaluation test method shown in this specification, "moist feeling", "duration of moist feeling", and "fluffy feeling" were evaluated by the following methods.

"Moist feeling"
A test was conducted to evaluate the moist feel of the skin cosmetic compositions obtained in Examples and Comparative Examples by 15 expert panelists. In the evaluation test, 2 g of the skin cosmetic compositions of Examples and Comparative Examples, whose temperature was adjusted to 20°C, were applied uniformly to the entire face at a room temperature of 20°C and a humidity of 60%, and whether or not a moist feeling was felt upon application. This was evaluated by sensory evaluation.
<Evaluation criteria>
5:15 out of 15 people, more than 13 people felt moisturized.
4:15 out of 10 or more and 12 or less people felt moisturized.
3:7 to 9 people out of 15 people felt moist.
2: Out of 15 people, 4 or more and 6 or less felt a moist feeling.
1:3 or less out of 15 people felt moist.

"Sustainable moist feeling"
An evaluation test was conducted by 15 expert panelists to evaluate the durability of the moist feeling of the skin cosmetic compositions obtained in the Examples and Comparative Examples. In the evaluation test, 2 g of the skin cosmetic compositions of the Examples and Comparative Examples, whose temperature was adjusted to 20°C, were applied uniformly to the entire face at a room temperature of 20°C and a humidity of 60%, and the skin was left untouched for 6 hours. After waiting, a sensory evaluation was made to determine whether a moist feeling was felt.
<Evaluation criteria>
5: More than 13 out of 15 people felt the same level of moistness compared to the results evaluated for "moist feeling".
4: 10 to 12 out of 15 people felt the same level of moistness compared to the results evaluated in terms of "moist feeling".
3: 7 or more and 9 or less out of 15 people felt the same level of moistness compared to the "moist feeling" evaluation results.
2: More than 4 people and less than 6 people out of 15 people felt the same level of moistness compared to the results evaluated by "moist feeling".
1: Less than 3 out of 15 people felt the same level of moistness compared to the evaluation results for "moist feeling".

"A chewy feeling"
A test was conducted to evaluate the elasticity of the skin cosmetic compositions obtained in Examples and Comparative Examples by 15 expert panelists. In the evaluation test, 2 g of the skin cosmetic compositions of the Examples and Comparative Examples, whose temperature was adjusted to 20°C, were applied uniformly to the entire face at a room temperature of 20°C and a humidity of 60%, and whether the skin felt firm when applied. A sensory evaluation was made to determine whether or not the product was present.
<Evaluation criteria>
5:15 out of 15 people, more than 13 people felt a feeling of elasticity.
4:15 out of 10 or more and 12 or less felt the feeling of being sticky.
3: More than 7 people and less than 9 people out of 15 people felt a feeling of elasticity.
2: Out of 15 people, 4 or more and 6 or less felt a feeling of elasticity.
1: Less than 3 out of 15 people felt a sticky feeling.

*1: La Flora EC-12 (manufactured by Ichimaru Falcos)
*2: KT-11 HKN (manufactured by Kitty)
*3: Amitose R (manufactured by Seiwa Kasei Co., Ltd.)
*4: LIPACIDE C8G (manufactured by SEPPIC S.A.)
*5: Enterococcus faecium (manufactured by Seti)
*6: Lactobacillus casei (manufactured by Seti)
*7: CAE (manufactured by Ajinomoto Co.)
*8: Amino coat (manufactured by Asahi Kasei Finechem)

From Examples 1 to 30 shown in Tables 1 to 4, it was confirmed that good results were obtained for skin cosmetic compositions that imparted a moist and elastic feel to the skin and had good sustainability of the moist feeling. It was done.

Even when evaluation tests were conducted using Examples 31 to 34 below, skin cosmetic compositions that imparted a moist and elastic feel to the skin and had good long-lasting moist feeling were obtained.

<Example 31 (lotion)>
Component Content (mass%)
(A) Enterococcus faecalis
(Enterococcus faecalis) 0.010
(B) Lactobacillus crispatus
(Lactobacillus crispatus) 0.002
(C) Dihydroxypropyl arginine HCl 0.030
(C) Capryloylglycine 0.050
Edetate disodium 0.050
Carboxymethyl cellulose sodium 0.050
Acrylic acid/alkyl methacrylate copolymer 0.200
Sodium hyaluronate (2) 0.010
1,3-butylene glycol 9.000
Hydroxyethyl cellulose 0.050
Dipropylene glycol 5.000
Concentrated glycerin 4.000
Polyoxyethylene methyl glucoside 2.000
Phenoxyethanol 0.300
Glycerin mono-2-ethylhexyl ether 0.200
2-amino-2-methyl-1-propanol 0.080
N-lauroyl-L-glutamate di(phytosteryl 2-octyldodecyl) 0.150
Polystyrene 0.098
Succinyl atelocollagen 0.010
Dextrin 0.008
Fragrance 0.012
Purified water 78.690
Total 100.000

<Example 32 (emulsion)>
Component Content (mass%)
(A) Enterococcus faecalis
(Enterococcus faecalis) 0.010
(B) Lactobacillus crispatus
(Lactobacillus crispatus) 0.002
(C) Dihydroxypropyl arginine HCl 0.030
(C) Capryloylglycine 0.050
Isopropyl myristate 7.500
Vaseline 0.500
Sorbitan monoisostearate 0.500
Edetate disodium 0.110
Acrylic acid/alkyl methacrylate copolymer 0.230
Concentrated glycerin 3.000
1,3-butylene glycol 7.000
Phenoxyethanol 0.300
Glycerin mono-2-ethylhexyl ether 0.200
Polyoxyethylene methyl glucoside 2.000
Hydroxyethyl cellulose 0.300
Sodium hyaluronate (2) 0.010
2-amino-2-methyl-1-propanol 0.120
Succinyl atelocollagen 0.100
Dextrin 0.008
Fragrance 0.016
Purified water 78.014
Total 100.000

<Example 33 (cream)>
Component Content (mass%)
(A) Enterococcus faecalis
(Enterococcus faecalis) 0.010
(B) Lactobacillus crispatus
(Lactobacillus crispatus) 0.002
(C) Dihydroxypropyl arginine HCl 0.030
(C) Capryloylglycine 0.050
Concentrated glycerin 3.000
1,3-butylene glycol 7.000
Methyl paraoxybenzoate 0.300
Polyoxyethylene methyl glucoside 2.000
Edetate disodium 0.050
Acrylic acid/alkyl methacrylate copolymer 0.200
(Acryloyldimethyltaurine ammonium/VP) copolymer 0.500
Octyldodecyl myristate 5.000
Squalane 5.600
Sorbitan monostearate 0.400
Stearyl stearate 0.300
2-Amino-2-methyl-1-propanol 0.200
Sodium hyaluronate (2) 0.010
Succinyl atelocollagen 0.100
Dextrin 0.008
Fragrance 0.016
Purified water 75.224
Total 100.000

<Example 34 (pack)>
Component Content (mass%)
(A) Enterococcus faecalis
(Enterococcus faecalis) 0.010
(B) Lactobacillus crispatus
(Lactobacillus crispatus) 0.002
(C) Dihydroxypropyl arginine HCl 0.030
(C) Capryloylglycine 0.050
Edetate disodium 0.100
Concentrated glycerin 5.000
Dipropylene glycol 4.000
1,3-butylene glycol 12.000
Phenoxyethanol 0.300
Acrylic acid/alkyl methacrylate copolymer 0.250
Bisstearyl PEG/PPG-8/6
(SMDI/PEG-400) copolymer 1.100
Hydroxyethyl cellulose 0.300
Sodium hyaluronate (2) 0.010
Glycerin mono-2-ethylhexyl ether 0.200
Methyl polysiloxane 1.800
N-lauroyl-L-glutamic acid di(phytosteryl 2-octyldodecyl) 0.300
Polyoxyethylene sorbitan monostearate 0.100
2-Amino-2-methyl-1-propanol 0.090
Succinyl atelocollagen 0.100
Dextrin 0.008
Fragrance 0.016
Purified water 74.234
Total 100.000

INDUSTRIAL APPLICABILITY The present invention can provide a skin cosmetic composition that imparts a moist and elastic feel to the skin and has a good long-lasting moist feeling.

Claims (1)

(A) Enterococcus faecalis
(B) Lactobacillus crispatus
(C) Dihydroxypropyl arginine HCl and capryloylglycine
The content of the component (A) is 0.001 to 1% by mass, the content of the component (B) is 0.001 to 1% by mass, and the content of the component ( C) is 0.02% by mass. ~1% by mass of a skin cosmetic composition.