JP2004083484A - Skin external preparation - Google Patents
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- JP2004083484A JP2004083484A JP2002246815A JP2002246815A JP2004083484A JP 2004083484 A JP2004083484 A JP 2004083484A JP 2002246815 A JP2002246815 A JP 2002246815A JP 2002246815 A JP2002246815 A JP 2002246815A JP 2004083484 A JP2004083484 A JP 2004083484A
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- external preparation
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Abstract
Description
【0001】
【産業上の利用分野】本発明は、ヒアルロン酸またはその塩と海藻抽出物を配合した化粧料に関する。
【0002】
【従来の技術】
皮膚真皮組織に存在するヒアルロン酸はグルクロン酸とN−アセチルグルコサミンのβ−グリコシド結合からなる二糖の繰り返し構造を有する物質で分子量数百万に達する高分子化合物である。ヒアルロン酸は鶏冠,臍帯,眼の硝子体や関節液等の分泌液中にも多量に含まれている。また、ヒアルロン酸は非常に長い酸性糖鎖を持つため、高い抱水能を有し、その1gは6リットルもの水分を保持することから、生理的に皮膚の柔軟性もこの物質にかかる機能と密接に結び付いていると考えら、 ヒアルロン酸はその優れた保湿性や感触で広く化粧品の原料として利用されている。最近は、老化に関する様々な研究が行われるようになり、特に、ヒアルロン酸が皮膚の機能に重要な役割をもつことが解明されてきた。従来より、ヒアルロン酸の皮膚保湿効果などの優れた機能から、鶏冠や微生物発酵由来のヒアルロン酸が種々の医薬品、医薬部外品、化粧品などの皮膚外用剤に配合されている。これらは非常に有効であるが、さらに有効性が期待されている。
【0003】
海藻抽出物も保湿作用などの目的ですでに広く、皮膚外用剤に利用されている。また、海藻抽出物の一部にはヒアルロン酸合成促進作用があることも特開平6−9422号、特開平7−101871号、特開平8−198741号の各公報に記載されている。
【0004】
【発明が解決しようとする課題】
本発明は、保湿性が高く、且つ皮膚の弾力性を高め、且つ安全な皮膚外用剤を開発することである。
【0005】
【課題を解決するための手段】
本発明者らは鋭意研究を重ねた結果、ヒアルロン酸またはその塩と海藻抽出物を配合した皮膚外用剤が本課題を解決することがわかった。
【0006】
以下に具体的に説明すると、まず、ヒアルロン酸であるが、臍帯、鶏のトサカ、動物の皮膚、眼球ガラス帯や、微生物の培養物を抽出処理に付して得られる。分子量10万〜300万でこれらのナトリウム、カリウム、塩基性アミノ酸塩等も勿論利用できる。これを製剤中に0.01〜20%配合する。
【0007】
ヒアルロン酸に加えて、海藻抽出物を配合する。海藻抽出物はいろいろな海藻で実験したがいずれも効果があるが、褐藻類が特に効果があることがわかった。本発明者が実験し、非常に良好なものには以下のものがあった。
ヒジキ(Hizikia fusiformis)の水抽出物と1.3ブチレングリコール:水=1:2の抽出物、ホンダワラ(Sargassum fulvellum) の水抽出物、マコンブ(Laminaria japonica) の水抽出物と1.3ブチレングリコール:水=1:2の抽出物、ミツイシコンブ(L. angustata) の水抽出物と1.3ブチレングリコール:水=1:1の抽出物、アラメ(Eisenia bicyclis) の水抽出物と1.3ブチレングリコール:水=1:3の抽出物、ワカメ(Undaria pinnatifida) の水抽出物と1.3ブチレングリコール:水=1:2の抽出物、ジャイアントケルプ(Macrocystis pyrifera)、ヒバマタ(Fucus evanescens)の水抽出物と1.3ブチレングリコール:水=2:1の抽出物。
勿論これらの近縁海藻を抽出したものも当然効果があるし、抽出方法が1.3ブチレングリコールと水の比が5:1〜0:1のもの、水とエタノール、メタノール、アセトン、グリセリン、プロピレングリコール等の混液で抽出しても目的を達するのは当然である。
これらの海藻抽出物を固形分換算で0.001〜10%製剤に配合する。
【0008】
以上のヒアルロン酸またはその塩と海藻抽出物を配合するとそれぞれ単独で配合した場合に比較して保湿性は勿論、皮膚の弾力性が高まり、皮膚の状態が非常に健康な状態になった。すなわち、肌のハリが増し、シワが少なくなり若々しい肌の状態となった。
これはまた、単に海藻のヒアルロン酸合成作用のみならず、ヒアルロン酸と海藻抽出物を共存させることによってその有効性が飛躍的に向上することがわかった。
【0009】
さらにグリチルリチン酸或いはこれの誘導体または塩、マルチトールを配合すると有効性はさらに増すこともわかった。グリチルリチン酸或いはこれの誘導体または塩にはグリチルリチン酸ジカリウム、グリチルリチン酸モノアンモニウム等、β−グリチルレチン酸、グリチルレチン酸ステアリル、3−サクシニルオキシグリチルレチン酸二ナトリウム等のグリチルリチン酸、若しくはグリチルレチン酸が例示できる。特にグリチルリチン酸或いはこれの誘導体または塩を加えることによって皮膚刺激緩和作用や消炎作用があり、ヒアルロン酸と海藻抽出物の作用と合わせて、皮膚外用剤として非常に有効であった。
【0010】
これらと皮膚外用剤として必要な原料を配合して任意の剤形の製剤を作成する。剤形は、液状、ゲル状、乳液状、パック状、クリーム状、軟膏など任意の剤形を選択できる。以下に実施例を記載するがなんら本発明を限定するものではない。
【0011】
実施例1 保湿液
ヒアルロン酸Na(平均分子量200万)を2.0%(以下重量%)、海藻抽出液1を5.0%、グリセリンを5.0%、1.2ペンタンジオールを2.0%、精製水を86.0%を混合した。
【0012】
実施例2 保湿液
実施例1、100gに対してグリチルリチン酸ジカリウムを0.1g加えた。
【0013】
実施例3 保湿液
実施例1、100gに対してマルチトールを5g加えた。
【0014】
実施例4 クリーム
スクワランを10.0%、ミリスチン酸オクチルドデシルを10.0%、モノステアリン酸グリセリンを5.0%、ポリオキシエチレン(40モル)硬化ヒマシ油を0.5%、ステアリン酸を5.0%、ベヘニルアルコールを1.0%、グリセリンを5.0%、1,3−ブチレングリコールを5.0%、1.2ペンタンジオールを2.0%、フェノキシエタノールを0.5%、エデト酸二ナトリウムを0.01%、ヒアルロン酸Na(平均分子量70万)を0.5%、海藻抽出物2を1.0%、精製水を54.49%を常法に従ってクリームに作成した。
【0015】
実施例5 乳液
スクワランを4.0%、ステアリン酸を0.5%、ステアリルアルコールを0.5%、モノステアリン酸ポリオキシエチレン(20モル)ソルビタンを2.5%、ポリオキシエチレン(60モル)硬化ヒマシ油を0.5%、モノステアリン酸グリセリンを1.0%、パラオキシ安息香酸エステルを0.2%、1,3−ブチレングリコールを5.0%、ヒアルロン酸(平均分子量70万)を0.15%、海藻抽出物3を0.5%、精製水を85.15%
【0016】
なお、上記実施例で用いた海藻抽出物の作成方法は以下の通りである。
海藻抽出物1はヒジキ(Hizikia fusiformis)の乾燥物1kgを細断し、精製水25kgを加えて、80℃5時間抽出したのち、30℃になるまで攪拌しつつ放置した。これを濾布で濾過したのち、0.2μのメンブランフィルターで濾過した。
海藻抽出物2はジャイアントケルプ(Macrocystis pyrifera)の乾燥物1kgを細断し1.3ブチレングリコール10kgと精製水5kgを加えて、80℃で5時間抽出したのち、30℃になるまで攪拌しつつ放置した。これを濾布で濾過したのち、濾紙(東洋濾紙No5C)で濾過した。
海藻抽出物3はマコンブ(Laminaria japonica)を500g、ワカメ(Undaria pinnatifida) を500gを細断し1.3ブチレングリコール7.5kgと精製水15kgを加えて、80℃5時間抽出したのち、30℃になるまで攪拌しつつ放置した。これを濾布で濾過したのち、0.2μのメンブランフィルターで濾過した。
【0017】
有効性を確認するために以下の試験を行った。
有効性試験1
被験者を室温25℃湿度50%の人工環境室に60分間馴化後、前腕内側部3ケ所に2cm角の正方形を書き、皮表角層水分量測定装置SKICON200(IBS社製)で3回づつ測定したのち、検体を20μl塗布した。塗布直後、5、10、20、30、60分後に角質水分量の測定した。
検体は実施例1〜3と比較として以下の比較例1および2を用いた。これを10名の女性にローテーションしながら実施した。
比較例1は実施例1のヒアルロン酸Na(平均分子量200万)を精製水に置き換えて作成したもの
比較例2は実施例1の海藻抽出液1を精製水に置き換えて作成したもの
結果を以下に示す。
【0018】
【0019】
有効性試験2
女性50名を被験者として5グループに分け、実施例1〜3、比較例1〜2を3ヶ月間1日2回使用してもらった後の変化について使用試験を行った。
【0020】
基準は大幅に改善されたを3+、かなり改善された2+、やや改善された+、使用前と変化なし±、悪化したを−とした。(但し結果は−はなかった。)
結果を以下に示す。
【0021】
【0022】
以上のようにヒアルロン酸や海藻抽出物単独でも皮膚水分に対して効果はあるがこの2つの成分を併用するとこの効果が飛躍的に上昇することがわかった。[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic comprising hyaluronic acid or a salt thereof and a seaweed extract.
[0002]
[Prior art]
Hyaluronic acid present in skin dermal tissue is a substance having a repeating structure of disaccharides composed of β-glycosidic bonds of glucuronic acid and N-acetylglucosamine, and is a high molecular compound reaching a molecular weight of several million. Hyaluronic acid is also contained in a large amount in secretions such as cockscomb, umbilical cord, vitreous and synovial fluid of eyes. In addition, hyaluronic acid has a very long acidic sugar chain, so it has a high hydration ability, and 1 g of it retains as much as 6 liters of water. Hyaluronic acid is widely used as a raw material in cosmetics because of its excellent moisturizing properties and texture, which is thought to be closely related. Recently, various studies on aging have been conducted, and it has been revealed that hyaluronic acid has an important role in skin function. BACKGROUND ART Conventionally, hyaluronic acid derived from cockscomb or microbial fermentation has been incorporated into various skin external preparations such as pharmaceuticals, quasi-drugs, and cosmetics because of its excellent functions such as skin moisturizing effect. These are very effective but are expected to be more effective.
[0003]
The seaweed extract has already been widely used for the purpose of moisturizing action and the like, and is used as an external preparation for skin. It is also described in JP-A-6-9422, JP-A-7-101871 and JP-A-8-198741 that a part of the seaweed extract has a hyaluronic acid synthesis promoting action.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to develop a safe external preparation for skin that has high moisturizing properties, enhances skin elasticity, and is safe.
[0005]
[Means for Solving the Problems]
As a result of intensive studies, the present inventors have found that an external preparation for skin containing hyaluronic acid or a salt thereof and a seaweed extract solves this problem.
[0006]
To be more specific, hyaluronic acid is first obtained by subjecting umbilical cord, chicken limpet, animal skin, eyeball glass band, and culture of microorganisms to an extraction treatment. Of course, sodium, potassium, basic amino acid salts and the like having a molecular weight of 100,000 to 3,000,000 can also be used. This is blended in the preparation in an amount of 0.01 to 20%.
[0007]
In addition to hyaluronic acid, a seaweed extract is blended. Although the seaweed extract was tested on various seaweeds, all were effective, but brown algae were found to be particularly effective. The inventors have conducted experiments and found that the following were very good.
Aqueous extract of Hizikia fusiformis and 1.3 butylene glycol: water = 1: 2 extract, water extract of Hondara (Sargassum fulvellum), water extract of Laminaria japonica and 1.3 butylene glycol. : An extract of water = 1: 2, an aqueous extract of Mitsui kelp (L. angusta) and an extract of 1.3 butylene glycol: water = 1: 1, an aqueous extract of alame (Eisenia bicyclis) and 1.3 butylene Glycol: water = 1: 3 extract, wakame (Undaria pinnatifida) water extract and 1.3 butylene glycol: water = 1: 2 extract, giant kelp (Macrocystis pyrifera), hibamata (Fucus evan) water extract and 1.3 butylene glycol: water = 2: 1 extract.
Of course, those obtained by extracting these closely related seaweeds are also effective, and the extraction method is a method in which the ratio of 1.3 butylene glycol to water is 5: 1 to 0: 1, and water and ethanol, methanol, acetone, glycerin, It is natural that the purpose is achieved even if extraction is performed with a mixed solution such as propylene glycol.
These seaweed extracts are blended in a formulation of 0.001 to 10% in terms of solid content.
[0008]
When the above-mentioned hyaluronic acid or a salt thereof and the seaweed extract were blended, not only the moisturizing property but also the elasticity of the skin were increased and the skin condition became very healthy as compared with the case where they were blended alone. In other words, skin firmness increased, wrinkles decreased, and the skin became youthful.
It was also found that not only the action of synthesizing hyaluronic acid by seaweed, but also the effect of the coexistence of hyaluronic acid and seaweed extract dramatically improved its effectiveness.
[0009]
It has also been found that the effectiveness is further increased when glycyrrhizic acid or a derivative or salt thereof, or maltitol is added. Examples of glycyrrhizic acid or a derivative or salt thereof include glycyrrhizic acid such as dipotassium glycyrrhizinate and monoammonium glycyrrhizinate, glycyrrhizic acid such as β-glycyrrhetinic acid, stearyl glycyrrhetinate, and disodium 3-succinyloxyglycyrrhetinate. In particular, the addition of glycyrrhizic acid or a derivative or salt thereof has a skin irritation alleviating effect and an anti-inflammatory effect, and is very effective as a skin external preparation in combination with the effects of hyaluronic acid and seaweed extract.
[0010]
These are mixed with raw materials necessary for an external preparation for the skin to prepare a preparation in an arbitrary dosage form. As the dosage form, any dosage form such as liquid, gel, emulsion, pack, cream, ointment and the like can be selected. Examples are described below, but do not limit the present invention in any way.
[0011]
Example 1 Moisturizing liquid Na hyaluronate (average molecular weight 2,000,000) 2.0% (hereinafter referred to as weight%), seaweed extract 1 5.0%, glycerin 5.0%, 1.2 pentanediol 2. 0% and 86.0% of purified water were mixed.
[0012]
Example 2 0.1 g of dipotassium glycyrrhizinate was added to 100 g of the moisturizing liquid of Example 1.
[0013]
Example 3 5 g of maltitol was added to 100 g of the moisturizing liquid of Example 1.
[0014]
Example 4 10.0% cream squalane, 10.0% octyldodecyl myristate, 5.0% glycerin monostearate, 0.5% polyoxyethylene (40 mol) hydrogenated castor oil, stearic acid 5.0%, behenyl alcohol 1.0%, glycerin 5.0%, 1,3-butylene glycol 5.0%, 1.2 pentanediol 2.0%, phenoxyethanol 0.5%, edetate 0.01% of disodium acid, 0.5% of sodium hyaluronate (average molecular weight 700,000), 1.0% of seaweed extract 2 and 54.49% of purified water were prepared into a cream according to a conventional method.
[0015]
Example 5 4.0% emulsion squalane, 0.5% stearic acid, 0.5% stearyl alcohol, 2.5% polyoxyethylene monostearate (20 mol) sorbitan, polyoxyethylene (60 mol) ) 0.5% hydrogenated castor oil, 1.0% glyceryl monostearate, 0.2% paraoxybenzoate, 5.0% 1,3-butylene glycol, hyaluronic acid (average molecular weight 700,000) 0.15%, seaweed extract 3 0.5%, purified water 85.15%
[0016]
The method of preparing the seaweed extract used in the above example is as follows.
The seaweed extract 1 was prepared by cutting 1 kg of dried Hijiki fusiformis, chopping 25 kg of purified water, extracting the mixture at 80 ° C. for 5 hours, and then stirring the mixture until the temperature reached 30 ° C .. This was filtered through a filter cloth and then filtered through a 0.2 μm membrane filter.
The seaweed extract 2 was prepared by chopping 1 kg of dried giant kelp (Macrocystis pyrifera), adding 1.3 kg of 1.3 butylene glycol and 5 kg of purified water, and extracting at 80 ° C. for 5 hours. I left it. After filtering this with a filter cloth, it filtered with filter paper (Toyo filter paper No5C).
The seaweed extract 3 was prepared by chopping 500 g of Laminaria japonica and 500 g of Undaria pinnatifida, adding 7.5 kg of 1.3 butylene glycol and 15 kg of purified water, extracting at 80 ° C. for 5 hours, and extracting at 30 ° C. for 5 hours. It was left with stirring until it became. This was filtered through a filter cloth and then filtered through a 0.2 μm membrane filter.
[0017]
The following tests were performed to confirm the effectiveness.
Effectiveness test 1
After acclimatizing the subject to an artificial environment room at room temperature of 25 ° C. and humidity of 50% for 60 minutes, write a square of 2 cm square at three places inside the forearm and measure three times with a skin surface stratum corneum moisture meter SKICON200 (manufactured by IBS). After that, 20 μl of the sample was applied. Immediately after application, 5, 10, 20, 30, and 60 minutes later, the amount of keratin moisture was measured.
The following Comparative Examples 1 and 2 were used as samples for comparison with Examples 1 to 3. This was performed while rotating 10 women.
Comparative Example 1 was prepared by replacing Na hyaluronate (average molecular weight: 2,000,000) of Example 1 with purified water Comparative Example 2 was prepared by replacing seaweed extract 1 of Example 1 by purified water Shown in
[0018]
[0019]
Effectiveness test 2
Fifty women were divided into 5 groups as subjects, and a use test was conducted on the changes after using Examples 1 to 3 and Comparative Examples 1 and 2 twice a day for 3 months.
[0020]
The criterion was 3+ for significantly improved, 2+ for significantly improved, + for slightly improved, ± unchanged from before use, and-for worse. (However, the result was not-.)
The results are shown below.
[0021]
[0022]
As described above, it has been found that hyaluronic acid and seaweed extract alone have an effect on skin moisture, but when these two components are used in combination, this effect is dramatically increased.
Claims (3)
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JP2002246815A JP2004083484A (en) | 2002-08-27 | 2002-08-27 | Skin external preparation |
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JP2002246815A JP2004083484A (en) | 2002-08-27 | 2002-08-27 | Skin external preparation |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2008139122A3 (en) * | 2007-05-11 | 2009-02-05 | Galderma Res & Dev | Pharmaceutical or cosmetic preparations for topical and/or parenteral application, preparation methods thereof and use of same |
JP2009067701A (en) * | 2007-09-11 | 2009-04-02 | Maruzen Pharmaceut Co Ltd | Growth promoter of keratinized cell of epidermis and transglutaminase-1 production promoter |
JP2011105665A (en) * | 2009-11-19 | 2011-06-02 | Kao Corp | Nonwoven fabric-impregnated cosmetic |
JP2014136678A (en) * | 2013-01-15 | 2014-07-28 | Kaigen Pharma Co Ltd | Moisturizing cosmetic material and production method thereof |
CN104173231A (en) * | 2014-08-04 | 2014-12-03 | 法国微拉芙生命科学研究院亚洲研发中心有限公司 | Method for extracting fucus extract and application of fucus extract in anti-aging cosmetics |
CN111228130A (en) * | 2019-10-28 | 2020-06-05 | 北京皓尔生物科技有限公司 | Composition with skin cell energy stimulating and skin barrier repairing effects and preparation method and application thereof |
-
2002
- 2002-08-27 JP JP2002246815A patent/JP2004083484A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008139122A3 (en) * | 2007-05-11 | 2009-02-05 | Galderma Res & Dev | Pharmaceutical or cosmetic preparations for topical and/or parenteral application, preparation methods thereof and use of same |
JP2009067701A (en) * | 2007-09-11 | 2009-04-02 | Maruzen Pharmaceut Co Ltd | Growth promoter of keratinized cell of epidermis and transglutaminase-1 production promoter |
JP2011105665A (en) * | 2009-11-19 | 2011-06-02 | Kao Corp | Nonwoven fabric-impregnated cosmetic |
JP2014136678A (en) * | 2013-01-15 | 2014-07-28 | Kaigen Pharma Co Ltd | Moisturizing cosmetic material and production method thereof |
CN104173231A (en) * | 2014-08-04 | 2014-12-03 | 法国微拉芙生命科学研究院亚洲研发中心有限公司 | Method for extracting fucus extract and application of fucus extract in anti-aging cosmetics |
CN111228130A (en) * | 2019-10-28 | 2020-06-05 | 北京皓尔生物科技有限公司 | Composition with skin cell energy stimulating and skin barrier repairing effects and preparation method and application thereof |
CN111228130B (en) * | 2019-10-28 | 2022-09-30 | 北京皓尔生物科技有限公司 | Composition with skin cell energy stimulating and skin barrier repairing effects and preparation method and application thereof |
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