JP2002104925A - Skin care preparation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin care preparation without having a slimy feeling and creaky feeling on applying it, having a smooth use feeling and tension touch feeling and excellent in skin humidity-retaining effect and skin-tightening effect. SOLUTION: This skin lotion is obtained by incorporating 1 kind or >=2 kinds of polyacrylic acid-based polymers and 1 kind or >=2 kinds of sea alga extracts simultaneously. As the polyacrylic acid-based polymer, a carboxyvinyl polymer is preferable and as the sea alga extract, the extract of the sea algae belonging to red alga, especially the sea alga belonging to the order of Gigartina tenella is preferably used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external preparation for skin which has no slimy or squeaky feeling during application, has a smooth feeling of use and a firm feel, and is excellent in skin moisturizing effect and skin tightening effect. More specifically, one or more polyacrylic polymer compounds and one of the seaweed extract
The present invention relates to an external preparation for skin comprising a kind or two or more kinds.

[0002]

2. Description of the Related Art Conventionally, external preparations for the skin have been used for the purpose of protecting the skin by imparting an appropriate viscosity or forming a film on the skin in order to improve the usability of the external preparation and the stability of the preparation. A water-soluble polymer compound having a thickening effect and a film forming property is used.

Examples of such water-soluble polymer compounds include plant-derived polysaccharides such as guar gum, locust bean gum and quince seed; seaweed-derived polysaccharides such as alginic acid and carrageenan; and polysaccharides produced by microorganisms such as xanthan gum and curdlan. Natural polymer compounds have been used.

[0004] However, the above-mentioned natural polymer compounds are easily susceptible to contamination by microorganisms, and require sterilization and use of preservatives. For this reason, polyacrylic acid-based polymer compounds such as carboxyvinyl polymers have been widely used because of their stable quality, little variation in viscosity over time and little temperature dependency, and low susceptibility to microbial contamination. . However, when a large amount of a carboxyvinyl polymer or the like is blended, there is a problem that a slimy feeling and a squeaky feeling are remarkably generated when the external preparation for skin is applied.

[0005] When a conventional water-soluble polymer compound is used, it is possible to obtain a compound which exhibits a moderate film-forming property while having a smooth feeling of use, and can exhibit a moisturizing effect and a tightening effect on the skin. I didn't.

[0006]

Accordingly, in the present invention, there is no slimy feeling or squeaky feeling at the time of application, a smooth feeling of use and a tactile feeling, and a skin moisturizing effect and an excellent skin tightening effect. The purpose is to obtain an external preparation.

[0007]

As a result of various studies to solve the above-mentioned problems, one of the polyacrylic acid-based polymer compounds was obtained.
By using one or more species or two or more species of seaweed extract in combination, it is possible to obtain an improved feeling in use and a synergistic skin moisturizing effect and an improved skin tightening effect. They have found and completed the present invention.

That is, in the present invention, one or more polyacrylic acid polymer compounds and one or more seaweed extracts are used in combination in a skin external preparation. As the polyacrylic acid-based polymer compound, a carboxyvinyl polymer is preferable, and as the seaweed extract, it is preferable to use an extract of a red algae, particularly, a seaweed belonging to the order of the genus Cucumber.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The polyacrylic acid-based polymer compound used in the present invention includes polyacrylic acid and salts thereof, polyacrylamide, polyethyl acrylate, carboxyvinyl polymer and the like. Among these, a carboxyvinyl polymer can be preferably used.
Carboxyvinyl polymers include inorganic bases such as potassium hydroxide and sodium hydroxide, L-arginine and L-arginine.
It is preferable to neutralize with an organic base such as lysine, L-histidine, triethanolamine and the like, and it is particularly preferable to neutralize with a basic amino acid such as L-arginine.

As the polyacrylic acid-based polymer compound, Julimer AC-10H (manufactured by Nippon Pure Chemical Co., Ltd.), AquaKeep 10SH-NF (manufactured by Iron and Steel Chemical Co., Ltd.), Aron A-20 (P) (Toa Gosei Co., Ltd.) ), Aronbis AH (manufactured by Daicel Chemical Industries, Ltd.), Aronbis M (manufactured by Nippon Pure Chemical Industries, Ltd.), Carbopol 1342, Carbopol 934, Carbopol 940, Carbopol 941, and Carbopol 981 (all BF Goodrid)
ch), Hibiswako 104, Hibiswako 105
(Supplied by Wako Pure Chemical Industries, Ltd.) and other raw materials for cosmetics and pharmaceuticals marketed by various companies.

Next, in the present invention, as seaweed extracts, brown algae ( Phaeophyta ), green algae ( Chlorophyta ),
Use one or more of seaweed extract of red algae (Rhodophyta), but it is preferable to use an extract of seaweed belonging to red algae (Rhodophyta). The seaweed belonging to the red algae (Rhodophyta), Chirinomo eyes (Porphyridiales), Benimidoro eyes (Goniotrichales), Ushikenori eyes (Bangia
les), seaweed and, Umizoumen eyes belonging to the primitive Benimotsuna (Protoflorideae) such as Ooishisou eyes (Compsopogonales) (Nemalionales), Gelidium eyes (Gelidiales), Kakureito eyes (Cryptonemiales), Suginori eyes (Gigartinal
es), dulse eyes (Rhodymeniales), Igisu eyes (Ceramia
les ) and other seaweed extracts belonging to the genus Red Algae ( Florideae ).

In the present invention, the red algae ( Rhodophy
Among the seaweed belonging to ta), especially Suginori eyes (Gigartin
It is preferred to use extracts of seaweed belonging to ales ).
In the order of Gigartinales , seaweeds belonging to the family Cypressaceae, Smeltaceae, Lycopogonidae, Ogonori, Eucalyptus, Chidinoceae, Atsubanori, Suskebeniaceae, Myrinaceae, Isomotsuka, Ibaranori, Oxanteriaceae, etc. , Gitinina ( Gigartina tenella Harvey), Kainori ( Gigartina intermedia Suringar), Shikinori ( Gigartina teedii Lamouroux), Ibonori ( Gigart )
ina pacifica Kjellman, Ikanoashi ( Gigartina mam )
illosa J. Agardh), Thunomata ( Chondrus ocellatus Ho)
lmes), hirakotoji ( Chondrus pinnulatus Okamur)
a), Chondrus armatus Okamura, Chondrus elatus Holmes, Chondrus yendoi Ymada et Mikami, Rhodoglossum pulcherum Setchell et
Gardner), Ogonori ( Gracilaria verrucosa Papenfu)
ss), Giant squirrel ( Gracilariopsis gigas Harve)
y), Shiramo ( Gracilaria bursa- pastris Silva), Tsurushiramo ( Gracilaria chorda Ohmi), Mizoogonori ( Gracilaria incurvata Okamura), Kaba nori ( Gracil )
aria textorii Suringar), Yumigata Ogonori ( Gracil
aria arcuata Zanardini), Ryukyu Ogonori ( Gr.
acilaria eucheumoides Harvey), Fushikenori ( Cora )
llopsis opuntia J. Agardh), sponges ( Ceratodi )
ctyon spongiosum Zanardini), Namiiwatake ( Tylotus )
lichenoides Okamura), Isomoka ( Catenella opun )
tia Greville), Usuginu ( Nemastoma lancifolia Oka)
mura), Hounoo ( Platoma japonica Okamura), Venice sago ( Schizymenia dubyi J. Agardh), Yukari ( Ploc
amium telfairiae Harvey), Hosoyukari ( Plocamium l )
eptophyllum var. flexuosum J. Agardh), Makiyukari ( Plocamium recurvatum Okamura), Himeyukari ( Ploc )
amium oviforme Okamura) 、 Islander ( Caulacanth )
us okamurai Yamada), Kijinoo ( Phacelocarpus japo )
nicus Okamura) and mirin ( Solieria robusta Kyli)
n), Hosobamilin ( Solieria mollis Kylin), Ezonameshi ( Turnellaella mertensiana Schmitz), Tosakanori ( Meristotheca papulosa J. Agardh), Kikutosaka ( Me
ristotheca coacta Okamura, Giraffe ( Eucheuma )
muricatum Weber van Bosse), Amakusa Kirin Sai (E
ucheuma amakusanensis Okamura), Togekirinsai (E
ucheuma serra J. Agardh), juniper ginseng ( Eu )
cheuma cupresoideum Weber van Bosse), Susukabebeni ( Halarachnion latissimum Okamura), Ibaranori ( Hypnea charoides Lamouroux), Kagiibaranori ( Hy
pnea japonica Tanaka), rhinoceros rose ( Hypnea saida )
na Holmes), Hypnea variabilis Oka
mura), Himobara ( Hypnea chordacea Kuetzing),
Rerun (Ahnfeltia concinna J.Agardh), Itanigusa (Ahnfeltia plicata F.Fries), Harigane (Ahnfeltia
paradoxa Okamura), Okitsunori ( Gymnogongrus flab )
elliformis Harvey), Mianagusa ( Trematocarpus pyg )
maeus Yendo), Atsubanori ( Sarcodia ceylanica Harv)
ey), Lotus lotus ( Stenogramma interrupta Montagn)
e), Echimadara ( Fauchea stipitata Ymamada et Se)
gawa), Uebagusa (Webberella micans Hauptfleisc
h) and the like.

The above-mentioned seaweed may be subjected to extraction as it is, but in consideration of the extraction efficiency, it is preferable to perform extraction after performing processing such as shredding, drying, and pulverization. The extraction is performed by immersion in an extraction solvent. Stirring may be performed to increase the extraction efficiency, or homogenization may be performed in an extraction solvent. It is appropriate that the extraction temperature is set to a temperature of about 5 ° C. to the boiling point of the extraction solvent or lower. The extraction time varies depending on the type of the extraction solvent and the extraction temperature, but is suitably about 4 hours to 14 days.

As an extraction solvent, in addition to water, methanol,
Lower alcohols such as ethanol, propanol and isopropanol; polyhydric alcohols such as 1,3-butylene glycol, propylene glycol, dipropylene glycol and glycerin; ethers such as ethyl ether and propyl ether; esters such as ethyl acetate and butyl acetate And polar organic solvents such as ketones such as acetone and ethyl methyl ketone, and one or more of these can be selected and used. Further, physiological saline, phosphate buffer, phosphate buffered saline, or the like may be used.

The extract of seaweed with the above-mentioned solvent can be contained in the external preparation for skin according to the present invention as it is, but the concentrated and dried extract can be dissolved again in water or a polar solvent, or the physiologically active substance can be used. Decolorization within the range that does not impair the function,
It may be used after performing a purification treatment such as deodorization and desalting, or after performing a fractionation treatment by column chromatography or the like.
The extract of seaweed, its processed product and fractionated product may be freeze-dried after each treatment and fractionation, and used after dissolving in a solvent at the time of use. Further, it can also be used by being encapsulated in vesicles such as liposomes, microcapsules and the like.

In the present invention, one or more polyacrylic acid-based polymer compounds and one or more seaweed extracts are contained in a skin external preparation base. The content of these in the external preparation for skin is preferably 0.01 to 2 for one or more of the polyacrylic acid-based polymer compounds.
About 2.0% by weight, one or more of the seaweed extract varies depending on the preparation method, but it is suitably about 1.0 to 50.0% by weight.

The external preparation for skin according to the present invention can be provided in various dosage forms such as lotions, emulsions, gels, creams, ointments, powders, granules and the like. Also, skin cosmetics such as lotion, milky lotion, cream, serum, pack, etc.
It can be provided as a base cosmetic such as a make-up base lotion and a make-up base cream, a foundation of various dosage forms such as emulsion, oily and solid forms, and a make-up cosmetic such as an eye color and a cheek color.

The external preparation for skin according to the present invention includes, in addition to polyacrylic acid-based polymer compounds and seaweed extracts, oily components, surfactants, humectants, other water-soluble polymer compounds,
Raw materials for general pharmaceuticals and cosmetics such as pigments, ultraviolet absorbers, antioxidants, fragrances, antibacterial and antifungal agents, skin cell activators,
A physiologically active ingredient such as an anti-inflammatory agent and a whitening agent can be contained.

[0019]

EXAMPLES Further, the features of the present invention will be described in detail with reference to examples.

First, a preparation example of a seaweed extract used in the present invention will be described.

[Suginori extract, Tsunomata extract, Ogonori extract] Suginori ( Gigartina tenella Harvey),
Dry powders of tsunomata ( Chondrus ocellatus Holmes) and Ogonori ( Gracilaria verrucosa Papenfuss) 25
0 g was immersed in 1.2 liters of a 50% by volume aqueous ethanol solution and extracted at 20 ° C. for 7 days. The extract was filtered to collect the filtrate, which was designated as each extract.

[Sponge extract] Sponge extract ( Ce
ratodictyon spongiosum Zanardini) each dry powder 30
0 g was immersed in 1.5 liters of a 50% by volume aqueous ethanol solution, and extracted at 20 ° C. for 7 days. The extract was filtered, the filtrate was collected, concentrated to dryness and freeze-dried,
It was the title extract.

[ Kirinsai extract, Barnacle extract, Ibaranori extract] Kirinsai ( Eucheuma muricat)
um Weber van Bosse), Togekirinsai (Eucheuma ser
ra J. Agardh) and Ibaranori ( Hypnea charoides Lamo)
1.2 kg of each alga body of uroux) was immersed in 3 liters of 1,3-butylene glycol, and extracted with stirring at 15 ° C. for 3 days. The extract was filtered to collect the filtrate, which was designated as each extract.

[ Saimi extract] Saimi ( Ahnfeltia conc)
After drying 2.4 kg of alga bodies of C. inna J. Agardh), they were pulverized, immersed in 1.5 liters of purified water, and extracted with stirring at 50 ° C to 60 ° C for 10 hours. The extract was filtered and the filtrate was collected to obtain the title extract.

Next, the formulations of the examples of the external preparation for skin according to the present invention are shown.

[Example 1] Lotion agent (1) Ethanol 20.00 (wt%) (2) Polyoxyethylene (60E.O.) hydrogenated castor oil 1.00 (3) Allantoin 0.10 (4) Paraoxyl Methyl benzoate 0.10 (5) Dipropylene glycol 5.00 (6) 1,3-butylene glycol 10.00 (7) Sodium polyacrylate 0.01 (8) Suginori extract 5.00 (9) Purification Water 58.79 Production method: (2) to (4) are added to (1) and dissolved to form an alcohol phase. On the other hand, (5) to (8) are sequentially dissolved in (9) to form an aqueous phase. Add the alcohol phase to the aqueous phase, stir and mix.

Example 2 Emulsion (1) Cetanol 1.00 (% by weight) (2) Beeswax 0.50 (3) Vaseline 2.00 (4) Squalane 6.00 (5) Dimethylpolysiloxane 2.00 (6) polyoxyethylene (20E.O.) sorbitan 1.00 monostearate (7) glyceryl monostearate 1.00 (8) glycerin 4.00 (9) 1,3-butylene glycol 4.00 (10) Methyl paraoxybenzoate 0.10 (11) Purified water 53.25 (12) Carboxyvinyl polymer 10.00 (1.0% by weight aqueous solution) (13) Potassium hydroxide 0.10 (14) Ethanol 00 (15) Pyridoxine hydrochloride 0.05 (16) Tsunomata extract 10.00 Production method: The oil phase components of (1) to (7) are mixed, and dissolved by heating to 75
° C. On the other hand, the aqueous phase components (8) to (11) are mixed and dissolved to 75 ° C. The oil phase was added thereto, and the mixture was pre-emulsified. (12) was added, and the mixture was uniformly emulsified with a homomixer. ~
Add (16) and mix.

Example 3 Gel Preparation (1) Dipropylene glycol 10.00 (% by weight) (2) Carboxyvinyl polymer 0.50 (3) Potassium hydroxide 0.10 (4) Methyl paraoxybenzoate 10 (5) Dipotassium glycyrrhizinate 0.05 (6) Ogonori extract 3.50 (7) Giraffe extract 3.50 (8) Purified water 82.25 Production method: (2) was uniformly dissolved in (8) Thereafter, (4) to (7) are dissolved and added to (1), and then (3) is added to increase the viscosity.

Example 4 Oil-in-Water Cream (1) Beeswax 6.0 (% by weight) (2) Cetanol 5.0 (3) Reduced Lanolin 8.0 (4) Squalane 27.5 (5) Glyceryl fatty acid Ester 4.0 (6) Lipophilic glyceryl monostearate 2.0 (7) Polyoxyethylene (20E.O.) sorbitan 5.0 Monolaurate (8) Propylene glycol 5.0 (9) Paraoxybenzoate Methyl acrylate 0.1 (10) Carboxyvinyl polymer 0.2 (11) Sponge extract 2.5 (12) Purified water 34.5 (13) Sodium hydroxide 0.1 (14) Sodium hyaluronate 0.1 Production method : Mix and dissolve the oil phase components (1) to (7) to 75 ° C. On the other hand, the aqueous phase components (8) to (12) were mixed and dissolved,
Heat to ° C. Next, the oil phase component was added to the aqueous phase component, preliminarily emulsified, uniformly emulsified with a homomixer, added (13) to increase the viscosity, cooled, and cooled at 40 ° C.
4) Add and mix.

Example 5 Serum (1) 1,3-butylene glycol 5.0 (% by weight) (2) Carboxyvinyl polymer 0.5 (3) Potassium alginate 0.1 (4) Polyoxyethylene ( 50E.O.) Hardened castor oil 1.0 (5) Methyl paraoxybenzoate 0.1 (6) L-arginine 1.0 (7) Ascorbic acid phosphate magnesium salt 0.1 (8) Simi extract 20 0.0 (9) Purified water 72.2 Production method: (1) to (8) are sequentially added to (9), and uniformly mixed and dissolved.

Example 6 Emulsion (1) Stearyl alcohol 0.5 (% by weight) (2) Jojoba oil 3.0 (3) Squalane 30.0 (4) Sorbitan sesquioleate 1.6 (5) Polyoxyethylene (20E.O.) oleyl 2.4 ether (6) 1,3-butylene glycol 6.0 (7) Polyethylene glycol (average molecular weight 400) 4.0 (8) Methyl paraoxybenzoate 0.1 ( 9) Carboxyvinyl polymer 15.0 (1.0% by weight aqueous solution) (10) Rhododendron extract 10.0 (11) Ibaranori extract 7.5 (12) L-lysine 0.3 (13) Purified water 19 .5 (14) Fragrance 0.1 Production method: The oil phase components of (1) to (5) are mixed and dissolved by heating.
° C. On the other hand, (6) to (8) were added to (13), dissolved and
° C. After adding the oil phase and pre-emulsifying,
(9) to (11) were added and homogenized uniformly with a homomixer,
Next, after adding (12) to increase the viscosity, the mixture was cooled, and then cooled at 40 ° C to (14)
Add and mix.

Example 7 Makeup Base Cream (1) Stearic acid 12.0 (% by weight) (2) Cetanol 2.0 (3) Glyceryl tri-2-ethylhexanoate 2.5 (4) Self-emulsification Type glyceryl monostearic acid 2.0 ester (5) propylene glycol 10.0 (6) potassium hydroxide 0.3 (7) methyl paraoxybenzoate 0.1 (8) sodium polyacrylate 0.2 (9) Kirinsai Extract 3.5 (10) Simi extract 3.5 (11) Purified water 61.3 (12) Titanium oxide 2.0 (13) Bengala 0.4 (14) Yellow iron oxide 0.1 (15) Fragrance 0.1 Production method: Mix and dissolve oil phase components (1) to (4) to 75 ° C. On the other hand, the aqueous phase components (5) to (11) were mixed and dissolved by heating.
The pigment components (12) to (14) are added thereto, and the mixture is uniformly dispersed with a homomixer to 75 ° C. Next, the oil phase component is added to the water phase component, and the mixture is uniformly emulsified with a homomixer. After cooling, (15) is added and mixed at 40 ° C.

Example 8 Emulsion Foundation (1) Stearic acid 2.00 (% by weight) (2) Squalane 5.00 (3) Octyldodecyl myristate 5.00 (4) Cetanol 1.00 (5) Decaglyceryl monoisopalmitate 9.00 (6) 1,3-butylene crychol 6.00 (7) Potassium hydroxide 0.20 (8) Methyl parahydroxybenzoate 0.10 (9) Carboxyvinyl polymer 15 (10) Sodium polyacrylate 0.10 (11) Purified water 50.70 (12) Titanium oxide 9.00 (13) Talc 7.40 (14) Bengala 0.50 (15) Yellow iron oxide 1.10 (16) Black iron oxide 0.10 (17) Fragrance 0.15 (18) Suginori extract 2.50 Production method: Mix and dissolve oil phase components (1) to (5) to 75 ° C. On the other hand, the aqueous phase components (6) to (11) are mixed and dissolved by heating.
The pigment components (12) to (16) are added thereto, and the mixture is uniformly dispersed with a homomixer to 75 ° C. Next, the oil phase component is added to the water phase component, and the mixture is uniformly emulsified by a homomixer. After cooling, (17) and (18) are added and mixed at 40 ° C.

Example 9 Jelly Pack Cosmetic (1) Ethanol 5.0 (% by weight) (2) Polyoxyethylene (20E.O.) lauryl ether 1.0 (3) Methyl paraoxybenzoate 1 (4) Fragrance 0.1 (5) Polyethylene glycol 5.0 (Average molecular weight 1500) (6) Dipropylene glycol 5.0 (7) Sorbitol 5.0 (8) Carboxyvinyl polymer 1.5 (9) Tsunomata Extract 22.5 (10) Spontaneous extract 2.5 (11) Purified water 51.8 (12) Potassium hydroxide 0.5 Production method: Add (2) to (4) to (1), dissolve The alcohol phase. On the other hand, the aqueous phase components of (5) to (11) are mixed and dissolved, the alcohol phase is added to solubilize the mixture, and then (12) is added to increase the viscosity.

Example 10 Sunscreen Emulsion (1) Oleyl Oleate 5.0 (% by weight) (2) Dimethylpolysiloxane 3.0 (3) Vaseline 0.5 (4) Cetanol 1.0 ( 5) Sorbitan sesquioleate 0.8 (6) Polyoxyethylene (20E.O.) oleyl ether 1.2 (7) 2-Ethylhexyl paramethoxycinnamate 6.0 (8) Oxybenzone 4.0 (9) Glycerin 6.0 (10) Methyl paraoxybenzoate 0.1 (11) Carboxyvinyl polymer 0.2 (12) Purified water 66.0 (13) Sodium hydroxide 0.1 (14) Ogonori extract 6.0 (15) ) Fragrance 0.1 Production method: The oil phase components of (1) to (8) are mixed and dissolved by heating.
° C. On the other hand, (9) to ((12) were mixed and dissolved to 75 ° C. The oil phase was added to emulsify the mixture, and then (13) was added to increase the viscosity. Add (14) and (15),
Mix.

The above examples of the present invention were subjected to use tests to evaluate the slickness and squeaky feeling during application, the smoothness and tension during use, the skin moisturizing effect and the skin tightening effect. At that time, all of the seaweed extract contained in each Example was replaced with the components shown in Table 1, and the total amount was adjusted to 100% by weight with purified water.
At the same time. Use test is in the 20s
Twenty female panelists in their 50s were grouped into one group, and each group was blindly used in each of the examples and comparative examples, and was subjected to a sensory evaluation of the evaluation items. The evaluation results were scored according to the evaluation criteria shown in Table 2, and the average value of 20 persons was calculated and shown in Table 3.

[0037]

[Table 1]

[0038]

[Table 2]

[0039]

[Table 3]

As is clear from Table 3, in the group using the example of the present invention, good evaluation was obtained for all items in all the groups. On the other hand, in the comparative example use group, the evaluation was lower than the corresponding example use group for each item, and the polyacrylic acid-based polymer compound was increased in place of the seaweed extract, or the seaweed extract was used. Comparative Example 2, Comparative Example 3, Comparative Example 5 in which was replaced with another polymer compound
In Comparative Example 7 and Comparative Example 9 use groups, a slimy feeling and a squeaky feeling during application were remarkably recognized, and the evaluation of smoothness during use was poor. In addition, in the group using the comparative example containing no seaweed extract, the evaluation of the skin tightening effect was low in all cases.

In Examples 1 to 10, 2
When stored at 5 ° C. for 6 months, no change in the condition was observed, and no problematic skin irritation was observed in a 48-hour back obstruction sticking test by 30 male panelists.

[0042]

As described in detail above, according to the present invention, there is no slimy feeling or squeaky feeling at the time of application, and it has a smooth feeling of use and a firm feeling, and is excellent in skin moisturizing effect and skin tightening effect. An external preparation for skin was obtained.

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Claims (4)

[Claims] An external preparation for skin comprising one or more polyacrylic acid-based polymer compounds and one or more seaweed extract. 2. The external preparation for skin according to claim 1, wherein the polyacrylic acid-based polymer compound is a carboxyvinyl polymer. 3. The seaweed extract according to claim 1, wherein the seaweed extract is a seaweed extract belonging to a red algae ( Rhodophyta ).
Or the external preparation for skin according to claim 2. 4. The method according to claim 1, wherein the seaweed extract is of the order Gigartinal.
The skin external preparation according to any one of claims 1 to 3, which is a seaweed belonging to es ).