JP2004175750A - Dermopathy inhibitor and dermopathy improving agent, and skin care preparation for external use containing them - Google Patents
Dermopathy inhibitor and dermopathy improving agent, and skin care preparation for external use containing them Download PDFInfo
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- JP2004175750A JP2004175750A JP2002345789A JP2002345789A JP2004175750A JP 2004175750 A JP2004175750 A JP 2004175750A JP 2002345789 A JP2002345789 A JP 2002345789A JP 2002345789 A JP2002345789 A JP 2002345789A JP 2004175750 A JP2004175750 A JP 2004175750A
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Abstract
Description
【0001】
【発明の属する技術分野】
本発明は、紫外線曝露に起因する皮膚障害を抑制する作用を有する皮膚障害抑制剤、紫外線曝露に起因する皮膚障害を改善する作用を有する皮膚障害改善剤、及びそれらを含有する皮膚外用剤に関する。更に詳細にはエルゴカルシフェロール及び/又はコレカルシフェロールを含有し、紫外線曝露に起因する皮膚障害を抑制する作用を有する皮膚障害抑制剤、及び紫外線曝露に起因する皮膚障害を改善する作用を有する皮膚障害改善剤に関するものである。更に、その皮膚障害抑制剤、皮膚障害改善剤を含有し、紫外線曝露によるシワ形成、皮膚腫瘍、皮膚肥厚及び皮膚硬化を抑制、改善し、化粧品や医薬品として有用である皮膚外用剤に関する。
【0002】
【従来の技術】
紫外線(太陽光)の連続的な長期間曝露は皮膚にケミカルメディエーター、サ
イトカイン等による炎症を生じせしめ、シワ、タルミ、皮膚肥厚、皮膚硬化、皮膚癌、日光性弾性線維症等の皮膚障害が生じる(非特許文献1参照)。特に表皮及び真皮が肥厚することにより、皮膚の弾性、保湿性が低下し、これが皮膚老化の要因の一つとなっていると考えられている。そこで、従来からこれらの障害を防ぐために、紫外線吸収剤(特許文献1、非特許文献2参照)、紫外線散乱剤(非特許文献3参照)が配合された外用剤、すなわち乳液、クリーム、ローション、美容液、ファンデーション、軟膏、パップ剤、貼付剤等が使用されている。
又、加齢、紫外線曝露等により生じる皮膚のシワやタルミ、ハリや弾力性の低下を予防、あるいは改善するために、レチノイン酸(非特許文献4参照)、抗炎症薬(非特許文献5参照)やオウバクエキス、シラカンバエキス、セージエキス、ローマカミツレエキス等(特許文献2参照)、メリッサ抽出物等(特許文献3参照)が配合されている。
しかしながら、例えば、レチノイン酸を配合した皮膚外用剤は、真皮上層にコラーゲンを増殖させシワ改善効果は有するが、シワの発生を抑制する効果はなく、塗布を中止すると元に戻ってしまい、また、塗布部位に紫外線が曝露すると却って皮膚癌を誘発する等の問題がある。紫外線吸収剤、紫外線散乱剤、抗炎症薬、植物抽出物等を配合した他の皮膚外用剤においても、シワ形成、皮膚腫瘍、皮膚肥厚等の抑制・改善効果が十分ではなかったり、効果を高めるためにこれらの添加物を高濃度に配合すると製剤の使用感が損なわれたり、高温時や経時で変質する等の問題が生じる場合があった。そこで、外用剤の剤型や使用感に影響を与えず、紫外線(太陽光)曝露によるシワ形成、皮膚腫瘍、皮膚肥厚及び皮膚硬化
症等の皮膚障害の発現を抑制する皮膚障害抑制剤、又、発現した皮膚障害を改善する皮膚障害改善剤、及びそれらを含有する皮膚外用剤の開発が望まれていた。
【0003】
【特許文献1】
特開平09−268194号公報
【特許文献2】
特開平8−109122号公報
【特許文献3】
特開平9−241148号公報
【非特許文献1】
菅原努、野津敬一著「太陽紫外線と健康」裳華房(1998)P.
2〜100
【非特許文献2】
ニコラス・J・ローウ/ナディム・A・ジャーム編「サンスクリーン剤と皮膚科学」フレグランスジャーナル社1993年5月20日発行、P.195〜262
【非特許文献3】
「FRAGRANCE JOURNAL」フレグランスジャーナル社
2002年7月号 P.16〜27、33〜38
【非特許文献4】
Lorraine H.Kligman著,“Effects ofall−trans−retinoic acid on the dermis of hairless mice”,Journal of the American Academy of Dermatology,1986年,vol.15,No.4,Part.2,October,P.779〜785
【非特許文献5】
Bissett DL,et.al著,“Photoprotective effect of topical anti−inflammatory agents against ultraviolet radiation−induced chronic skin damage in the hairless mouse”,1990年,vol.7,P.153〜158
【発明が解決しようとする課題】
【0004】
従って、本発明の目的は、紫外線(太陽光)によるシワ形成、皮膚腫瘍、皮膚
肥厚及び皮膚硬化症の発現を抑制する皮膚障害抑制剤、並びに発現した皮膚障害を改善する皮膚障害改善剤、及びそれらを含有する皮膚外用剤を提供することにある。
【0005】
【課題を解決するための手段】
本発明者らは、上記目的を達成するために、すでに安全性が確認されている医薬品、化粧品原料、及び民間薬等で使用されている植物に着目し、鋭意研究を重ねた結果、エルゴカルシフェロール及び/又はコレカルシフェロールが紫外線曝露による線維芽細胞の異常増殖やコラーゲンの異常産生、及び、コラーゲン、エラスチンの架橋等による皮膚肥厚の抑制・改善に働くこと、更には、皮膚のホメオスタシスを正常に維持することで皮膚腫瘍、皮膚硬化症の発現等の皮膚障害の抑制・改善に効果があることを見出した。そして、更にエルゴカルシフェロール及び/又はコレカルシフェロールが、紫外線曝露により過剰に生じたケミカルメディエーター、サイトカイン等により生ずる紅斑、炎症等を抑制し、シワ形成、皮膚腫瘍、皮膚硬化症等の発現等の皮膚障害を抑制、改善するとの新知見を得、本発明を完成した。
【0006】
【発明の実施の形態】
本発明に用いられるエルゴカルシフェロール及び/又はコレカルシフェロールは、紫外線曝露による線維芽細胞の異常増殖や、コラーゲンの異常産生、及び、コラーゲン、エラスチンの架橋等による皮膚肥厚の抑制・改善に働き、皮膚のホメオスタシスを正常に維持することで皮膚腫瘍、皮膚硬化症等の発現等の皮膚障害を抑制し改善する。エルゴカルシフェロール、コレカルシフェロールは、その由来や製法等は特に制限はなく、エルゴカルシフェロールは、例えば、ビール酵母、シイタケ等から溶媒を用いてエルゴステロールを抽出し、加熱・紫外線照射することによって得られる。又、コレカルシフェロールは、例えば7−デヒドロコレステロールを紫外線照射して工業的に得られる。
【0007】
本発明の皮膚障害抑制剤、皮膚障害改善剤については、エルゴカルシフェロール及び/又はコレカルシフェロールを有効成分として含む限り、特に制限はなく、液状、ペースト状、クリーム状、ゲル状等いずれの形態で用いることもでき、更にスプレードライ等により乾燥させて粉末として用いることもできる。
【0008】
本発明の皮膚障害抑制剤、皮膚障害改善剤における、エルゴカルシフェロール及び/又はコレカルシフェロールの含有量は、0.0001〜100質量%(以下、単に「%」と記す)が好ましく、より好ましくは0.0005〜0.1%である。この範囲であれば、紫外線曝露による線維芽細胞の異常増殖や、コラーゲンの異常産生、及びコラーゲン、エラスチンの架橋等による皮膚肥厚の抑制・改善に働き、皮膚のホメオスタシスを正常に維持し、シワ形成、皮膚腫瘍、皮膚肥厚及び皮膚硬化症の発現を抑制、改善する効果に優れ、経時安定性の面からも良好なものが得られる。
【0009】
本発明の皮膚外用剤は、前記皮膚障害抑制剤及び/又は皮膚障害改善剤を含有することを特徴とする。本発明の皮膚外用剤における、エルゴカルシフェロール及び/又はコレカルシフェロールの含有量は、0.0001〜1%が好ましく、より好ましくは0.0005〜0.1%である。この範囲であれば、紫外線曝露による線維芽細胞の異常増殖や、コラーゲンの異常産生、及びコラーゲン、エラスチンの架橋等による皮膚肥厚の抑制・改善に働き、皮膚のホメオスタシスを正常に維持し、シワ形成、皮膚腫瘍、皮膚肥厚及び皮膚硬化症の発現を抑制、改善する効果に優れ、経時安定性の面からも良好なものが得られる。
【0010】
本発明の皮膚外用剤には上記必須成分の他、化粧料や医薬部外品、外用医薬品等に通常使用される各種の成分、即ち、水、アルコール、油剤、界面活性剤、増粘剤、粉体、キレート剤、pH調整剤、美白剤、抗炎症剤、抗酸化剤、保湿剤、殺菌剤、血行促進剤等の各種薬効剤、動植物・微生物由来の抽出物、紫外線吸収剤、紫外線散乱剤、香料等を、本発明の効果を損なわない範囲で目的に応じて適宜加えることができる。
【0011】
また、本発明の皮膚外用剤としては、化粧料、医薬部外品、医薬品等が挙げられ、剤型も水性剤型、油性剤型、乳化剤型、粉末剤型、固形剤型等いずれの剤型にも配合することができる。例えば、化粧料としては、化粧水、乳液、クリーム、美容液、パック、バスソルト軟膏、ゲル剤、ファンデーション、パウダー、リップクリーム、口紅、日焼け止め製品等とすることができる。
【0012】
【実施例】
次に実施例を挙げて本発明を更に詳細に説明するが、本発明はこれらに何ら制約されるものではない。
実施例1:ヘアレスマウス紫外線照射による皮膚障害抑制試験
下記調製方法により皮膚障害抑制剤を調製し、紫外線照射による皮膚肥厚、皮膚腫瘍、シワ形成、皮膚硬化、及び皮膚老化の各試験を行い、皮膚障害の抑制を評価した。
【0013】
[試料(皮膚障害抑制剤)の調製]
エルゴカルシフェロール、コレカルシフェロールを基剤(ポリエチレングリコール1000:エチルアルコール=1:1)に溶解し、表1に示す皮膚障害抑制剤1〜5を調製した。また、比較品には上記の基剤を用いた。
【0014】
[試料塗布法と紫外線照射法]
1群8匹とし、紫外線照射90分前に上述の試料(皮膚障害抑制剤)をヘアレスマウス(10週齢)背中に0.1g塗布し、一定量の紫外線(東芝BLBランプ)を1日2時間(5回/週)15週間照射し(総照射量:716J/cm2)、皮膚肥厚、皮膚腫瘍、シワ形成及び皮膚硬化の抑制効果、並びに皮膚老化のマーカー物質抑制効果を調べた。
尚、これらの試料の紫外線吸収スペクトルを測定し、これらは評価試験に影響を与えないことを確認した。
【0015】
[評価法]
(皮膚肥厚抑制効果)
紫外線照射前と紫外線照射15週後の皮膚の厚みをダイアル厚みゲージ(OZAK.MFG.CO.LTD.)を用い測定した。結果は、8匹の皮膚の厚みの平均値、及び紫外線照射15週後の増加率で評価した。
(皮膚腫瘍抑制効果)
皮膚腫瘍は径が0.5mm以上の腫瘍を発症したマウスの発生率(8匹中)で評価した。
【0016】
(シワ形成抑制効果)
紫外線照射15週後のシワ形成について、下記表2に示す「光皮膚老化グレード」に基づいてシワグレードを判定した。尚、紫外線照射前のヘアレスマウスのシワグレードはいずれも0であった。結果は、8匹の評点の平均値で表し評価した。
【0017】
(皮膚硬化症の発現抑制効果)
紫外線照射15週後の各ヘアレスマウス皮膚背部中央部位を摘み、復元に5秒以上を要する皮膚を皮膚硬化症とし、マウス8匹中の発現率で評価した。
【0018】
(皮膚老化のマーカー物質抑制効果)
皮膚老化のマーカー物質であるデルマタン硫酸は、ヘアレスマウス背部皮膚を剥離し、コラーゲナーゼ及びコンドロイチナーゼで分解し、二単糖としてHPLC法により定量し、平均値を算出した。15週間後のデルマタン硫酸の生成抑制率は試料塗布群(本発明品塗布)のデルマタン硫酸の減少量をコントロール群(比較品塗布)のデルマタン硫酸量で割り、算出した。
【0019】
皮膚肥厚、皮膚腫瘍、シワ形成、皮膚硬化、及び皮膚老化マーカーについての各抑制評価結果を表1に示す。
【0020】
(結果)
【0021】
【表1】
【0022】
【表2】
【0023】
表1から明らかなように、エルゴカルシフェロール及び/又はコレカルシフェロールを含む皮膚障害抑制剤(本発明品1〜5)は、いずれも顕著な皮膚肥厚及び皮膚腫瘍、シワ及び皮膚硬化の発現を抑制するとともに、皮膚老化マーカーの生成を効果的に抑制する極めて優れたものであった。
【0024】
実施例2 クリーム
下記表3に示す組成及び下記製法でクリームを調製し、肌のシワ改善効果を評価した。
【0025】
(製法)
A.成分(1)〜(8)及び(10)を混合し、加熱して70℃に保つ。
B.成分(9)及び(12)を加熱して70℃に保つ。
C.AにBを加えて乳化する。
D.Cに成分(11)を加えた後、冷却してクリームを得た。
【0026】
(試験方法)
41〜59才の女性20名をパネルとし、毎日朝と夜の2回、15週間にわたって洗顔後に被験クリームの適量を顔面に塗布した。塗布による肌のシワ改善効果を以下の基準によって評価し、各評価基準に該当する人数を表3に併せて示した。
【0027】
(評価基準)
<評価> <内 容>
有 効 肌のシワが目立たなくなった。
やや有効 肌のシワがあまり目立たなくなった。
無 効 使用前と変化なし。
【0028】
(組成及び結果)
【0029】
【表3】
【0030】
表3の結果に示されるように、エルゴカルシフェロール及び/又はコレカルシフェロールを配合した本発明品6〜10は、比較品に比べ、肌のシワ改善効果が明らかに認められた。
【0031】
実施例3 乳液
下記表4に示す組成及び下記製法で乳液を調製し、肌のシワ改善効
果を評価した。
【0032】
(製法)
A.成分(1)〜(12)及び(17)を混合し、加熱して70℃に保つ。
B.成分(13)〜(16)及び(19)を混合し、加熱して70℃に保つ。
C.AにBを加えて乳化する。
D.Cに成分(18)を加えた後、冷却して乳液を得た。
【0033】
(試験方法)
実施例2と同じ方法により評価を行った。又、各評価基準に該当する人数を表4に併せて示した。
【0034】
(組成及び結果)
【0035】
【表4】
【0036】
表4の結果に示されるように、エルゴカルシフェロール及び/又はコレカルシフェロールを配合した本発明品11〜15は、比較品に比べ、肌のシワ改善効果が明らかに認められた。
【0037】
【0038】
(製法)
A.成分(1)〜(7)及び(9)を混合し、加熱して70℃に保つ。
B.成分(8)及び(11)を混合し、加熱して70℃に保つ。
C.AにBを加えて乳化する。
D.Cに成分(10)を加えた後、冷却してクリームを得た。
【0039】
実施例5 化粧水
(成分) (%)
(1)グリセリン 10.0
(2)1,3−ブチレングリコール 6.0
(3)クエン酸 0.1
(4)クエン酸ナトリウム 0.3
(5)精製水 残量
(6)コレカルシフェロール*1 0.005
(7)ポリオキシエチレン硬化ヒマシ油(60E.O.) 0.5
(8)エチルアルコール 8.0
(9)防腐剤 適量
(10)香料 適量
*1 関東化学工業社製
【0040】
(製法)
A.成分(1)〜(5)を混合溶解する。
B.成分(6)〜(10)を混合溶解する。
C.AとBを混合して、均一にし、化粧水を得た。
【0041】
実施例6 化粧水
(成分) (%)
(1)グリセリン 10.0
(2)1,3−ブチレングリコール 6.0
(3)クエン酸 0.1
(4)クエン酸ナトリウム 0.3
(5)精製水 残量
(6)エルゴカルシフェロール*1 0.005
(7)ポリオキシエチレン硬化ヒマシ油(60E.O.) 0.5
(8)エチルアルコール 8.0
(9)防腐剤 適量
(10)香料 適量
*1 ナカライテスク社製
【0042】
(製法)
A.成分(1)〜(5)を混合溶解する。
B.成分(6)〜(10)を混合溶解する。
C.AとBを混合して、均一にし、化粧水を得た。
【0043】
実施例7 化粧水
(成分) (%)
(1)グリセリン 10.0
(2)1,3−ブチレングリコール 6.0
(3)乳酸 0.1
(4)乳酸ナトリウム 0.3
(5)精製水 残量
(6)エルゴカルシフェロール*1 0.002
(7)コレカルシフェロール*2 0.002
(8)ポリオキシエチレン硬化ヒマシ油(60E.O.) 0.5
(9)エチルアルコール 8.0
(10)防腐剤 適量
(11)香料 適量
*1 ナカライテスク社製
*2 関東化学工業社製
【0044】
(製法)
A.成分(1)〜(5)を混合溶解する。
B.成分(6)〜(11)を混合溶解する。
C.AとBを混合して均一にし、化粧水を得た。
【0045】
【0046】
(製法)
A.成分(1)〜(13)を加熱混合し、70℃に保つ。
B.成分(14)〜(18)を加熱混合し、70℃に保つ。
C.AにBを加えて混合し、均一に乳化する。
D.Cを冷却後(19)〜(21)を加え、均一に混合して乳液を得た。
【0047】
実施例4〜8はいずれも経時安定性に優れ、肌に適用することにより、肌のシワを改善し、張りのある美しい肌にするクリーム、化粧水、及び乳液であった。
【0048】
実施例9 軟膏
(成分) (%)
(1)ステアリン酸 18.0
(2)セタノール 4.0
(3)エルゴカルシフェロール*1 0.1
(4)防腐剤 適量
(5)トリエタノールアミン 2.0
(6)グリセリン 5.0
(7)精製水 残量
*1 ナカライテスク社製
【0049】
(製法)
A.成分(5)〜(7)を加熱混合し、75℃に保つ。
B.成分(1)〜(4)を加熱混合し、75℃に保つ。
C.AをBに徐々に加え、冷却して軟膏を得た。
【0050】
実施例9は経時安定性に優れ、肌に適用することにより、肌のシワ改善効果に優れ、さらに張りのある美しい肌にする軟膏であった。
【0051】
実施例10 パック
(成分) (%)
(1)ポリビニルアルコール 15.0
(2)無水ケイ酸 0.5
(3)ポリエチレングリコール 0.5
(4)ポリオキシプロピレンメチルグルコシド 5.0
(5)グリセリン 5.0
(6)精製水 残量
(7)エチルアルコール 10.0
(8)防腐剤 適量
(9)エルゴカルシフェロール*1 0.1
(10)香料 適量
*1 ナカライテスク社製
【0052】
(製法)
A.成分(1)〜(6)を混合し、70℃に加熱して溶解する。
B.成分(7)〜(10)を混合して溶解する。
C.Bを先のAに加え、混合した後、冷却してパックを得た。
【0053】
実施例11 パック
(成分) (%)
(1)ポリビニルアルコール 15.0
(2)無水ケイ酸 0.5
(3)ポリエチレングリコール 0.5
(4)ポリオキシプロピレンメチルグルコシド 5.0
(5)グリセリン 5.0
(6)精製水 残量
(7)エチルアルコール 20.0
(8)防腐剤 適量
(9)コレカルシフェロール*1 0.1
(10)香料 適量
*1 関東化学工業社製
【0054】
(製法)
A.成分(1)〜(6)を混合し、70℃に加熱して溶解する。
B.成分(7)〜(10)を混合して溶解する。
C.Bを先のAに加え、混合した後、冷却してパックを得た。
【0055】
実施例10及び11は経時安定性に優れ、肌に適用することにより、肌のシワを改善し、張りのある美しい肌にするパックであった。
【0056】
【0057】
(製法)
A.成分(1)〜(8)を加熱し混合溶解する。
B.Aに成分(14)〜(19)を加え、均一に混合し、70℃に保つ。
C.成分(9)〜(13)を均一に溶解し、70℃に保つ。
D.CにBを添加して、均一に乳化する。
E.Dを冷却後、成分(20)を添加してリキッドファンデーションを得た。
【0058】
【0059】
(製法)
A.成分(1)〜(10)を混合溶解する。
B.Aに成分(16)〜(23)を加え、均一に混合し、70℃に保つ。
C.成分(11)〜(15)を均一に溶解し、70℃に保つ。
D.CにBを添加して、均一に乳化する。
E.Dを冷却後、成分(24)を添加してリキッドファンデーションを得た。
【0060】
実施例14 油性ファンデーション
(成分) (%)
(1)キャンデリラワックス 4.0
(2)パラフィンワックス 5.0
(3)ワセリン 5.0
(4)ジメチルポリシロキサン 15.0
(5)スクワラン 25.0
(6)トリイソステアリン酸ジグリセリル 残量
(7)エルゴカルシフェロール*1 0.02
(8)コレカルシフェロール*2 0.02
(9)有機変性ベントナイト 3.0
(10)酸化チタン 10.0
(11)セリサイト 5.0
(12)ナイロンパウダー 5.0
(13)着色顔料 適量
(14)アルキル変性カルボキシビニルポリマー 0.1
(15)グリセリン 0.5
(16)香料 適量
*1 ナカライテスク社製
*2 関東化学工業社製
【0061】
(製法)
A.成分(1)〜(8)を80℃で加熱溶解し、(9)〜(14)を加え均一に混合する。
B.Aに成分(15)及び(16)を加えて均一に混合し、冷却固化して油性ファンデーションを得た。
【0062】
実施例15 日焼け止め乳液
(成分) (%)
(1)ポリオキシアルキレン変性オルガノポリシロキサン 1.0
(2)ジメチルポリシロキサン 5.0
(3)オクタメチルシクロテトラシロキサン 20.0
(4)イソノナン酸イソトリデシル 5.0
(5)パラメトキシケイ皮酸−2−エチルヘキシル 5.0
(6)エルゴカルシフェロール*1 0.02
(7)防腐剤 適量
(8)微粒子酸化チタン 10.0
(9)微粒子酸化亜鉛 10.0
(10)酸化ジルコニウム 5.0
(11)ポリスチレン末 3.0
(12)トリメチルシロキシケイ酸 0.5
(13)ジプロピレングリコール 3.0
(14)エチルアルコール 10.0
(15)精製水 残量
(16)食塩 0.2
(17)香料 適量
*1 ナカライテスク社製
【0063】
(製法)
A.成分(1)〜(12)を混合分散する。
B.成分(13)〜(16)及び(17)を混合溶解する。
C.AにBを添加して、均一に乳化して日焼け止め乳液を得た。
【0064】
実施例16 日焼け止め乳液
(成分) (%)
(1)ポリオキシアルキレン変性オルガノポリシロキサン 1.0
(2)ジメチルポリシロキサン 5.0
(3)オクタメチルシクロテトラシロキサン 20.0
(4)イソノナン酸イソトリデシル 5.0
(5)パラメトキシケイ皮酸−2−エチルヘキシル 10.0
(6)エルゴカルシフェロール*1 0.05
(7)コレカルシフェロール*2 0.05
(8)防腐剤 適量
(9)微粒子酸化チタン 8.0
(10)微粒子酸化亜鉛 7.0
(11)酸化ジルコニウム 5.0
(12)ポリスチレン末 3.0
(13)トリメチルシロキシケイ酸 0.5
(14)ジプロピレングリコール 3.0
(15)エチルアルコール 10.0
(16)精製水 残量
(17)食塩 0.2
(18)香料 適量
*1 ナカライテスク社製
*2 関東化学工業社製
【0065】
(製法)
A.成分(1)〜(13)を混合分散する。
B.成分(14)〜(17)を混合溶解する。
C.AにBを添加して、均一に乳化する。
D.Cに成分(18)を添加し、日焼け止め乳液を得た。
【0066】
実施例12〜16は経時安定性に優れ、ファンデーションや日焼け止め乳液としての効果に加え、肌に適用することにより、肌のシワを改善する効果にも優れたものであった。
【0067】
【発明の効果】
以上のごとく、本発明に係わるエルゴカルシフェロール及び/又はコレカルシフェロールを有効成分とする皮膚障害抑制剤は紫外線曝露に起因するシワ形成、皮膚肥厚、皮膚腫瘍の発生及び皮膚硬化症の発現を顕著に抑制した。又、本発明に係わるエルゴカルシフェロール及び/又はコレカルシフェロールを有効成分とする皮膚障害改善剤は紫外線曝露により発現した皮膚障害を改善するものであった。更に、これらの皮膚障害抑制剤及び/又は皮膚障害改善剤を含有した本発明の皮膚外用剤も、紫外線曝露におけるシワ形成、皮膚肥厚、皮膚腫瘍の発生及び皮膚硬化症の発現を顕著に抑制、改善する効果を有するものであった。従って、本発明の皮膚外用剤は、皮膚老化防止を目的とする化粧品や医薬品等として有利に利用することができるものである。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a skin damage inhibitor having an action of suppressing skin damage caused by exposure to ultraviolet light, a skin damage improving agent having an action of improving skin damage caused by exposure to ultraviolet light, and a skin external preparation containing the same. More specifically, a skin disorder inhibitor containing ergocalciferol and / or cholecalciferol, which has an action of suppressing skin damage caused by ultraviolet light exposure, and skin having an action of improving skin damage caused by ultraviolet light exposure It relates to a disorder improving agent. Furthermore, the present invention relates to an external preparation for skin which contains the skin disorder inhibitor and the skin disorder improving agent, suppresses and improves wrinkle formation, skin tumor, skin thickening and skin hardening caused by exposure to ultraviolet rays, and is useful as cosmetics and pharmaceuticals.
[0002]
[Prior art]
Continuous long-term exposure to ultraviolet rays (sunlight) causes inflammation of the skin by chemical mediators, cytokines, etc., and causes skin disorders such as wrinkles, tallness, skin thickening, skin sclerosis, skin cancer, and solar elastosis. (See Non-Patent Document 1). In particular, it is considered that the thickening of the epidermis and dermis reduces the elasticity and moisturizing property of the skin, which is one of the factors of skin aging. Therefore, in order to prevent these obstacles, external preparations containing an ultraviolet absorber (see Patent Document 1 and Non-patent Document 2) and an ultraviolet scattering agent (see Non-Patent Document 3), that is, emulsions, creams, lotions, Essences, foundations, ointments, cataplasms, patches and the like are used.
In addition, retinoic acid (see Non-Patent Document 4), anti-inflammatory drugs (see Non-Patent Document 5) to prevent or ameliorate wrinkles and tallness, firmness and decreased elasticity of the skin caused by aging, exposure to ultraviolet light, etc. ), Oak extract, birch extract, sage extract, Roman chamomile extract and the like (see Patent Document 2), Melissa extract and the like (see Patent Document 3).
However, for example, a skin external preparation containing retinoic acid has a wrinkle-reducing effect by increasing collagen in the upper layer of the dermis, but has no effect of suppressing wrinkles and returns to its original state when application is stopped. Exposure of the application site to ultraviolet rays causes problems such as inducing skin cancer. Other skin external preparations containing UV absorbers, UV scattering agents, anti-inflammatory drugs, plant extracts, etc., have insufficient or improved effects of suppressing or improving wrinkle formation, skin tumors, skin thickening, etc. Therefore, if these additives are blended at a high concentration, there may be a problem that the feeling of use of the preparation is impaired, and the preparation deteriorates at high temperatures or over time. Therefore, a skin disorder suppressant that does not affect the dosage form or feeling of use of the external preparation and suppresses the appearance of skin disorders such as wrinkle formation, skin tumors, skin thickening and skin sclerosis due to exposure to ultraviolet rays (sunlight), There has been a demand for the development of skin disorder ameliorating agents for improving the developed skin disorders, and skin external preparations containing them.
[0003]
[Patent Document 1]
JP 09-268194 A [Patent Document 2]
JP-A-8-109122 [Patent Document 3]
JP-A-9-241148 [Non-Patent Document 1]
Tsutomu Sugawara and Keiichi Nozu, "Solar Ultraviolet Rays and Health," Shokabo (1998)
2-100
[Non-patent document 2]
"Sunscreen and Dermatology," edited by Nicholas J. Lowe / Nadim A. Germ, Fragrance Journal, May 20, 1993; 195-262
[Non-Patent Document 3]
"FRAGANCE JOURNAL", Fragrance Journal, July 2002, p. 16-27, 33-38
[Non-patent document 4]
Lorraine H. Kligman, "Effects of fall-trans-retinoic acid on the dermis of herice mice", Journal of the American Academy of Dermatology, 1986, Journal of the American Medicine. 15, No. 4, Part. 2, October, P .; 779-785
[Non-Patent Document 5]
Bissett DL, et. al., "Photoprotective effect of topical anti-inflammatory agents against ultravioletradiation-induced chronic skin aging in 90 years. 7, p. 153-158
[Problems to be solved by the invention]
[0004]
Accordingly, an object of the present invention is to provide a skin disorder inhibitor which suppresses the formation of wrinkles, skin tumors, skin thickening and skin sclerosis caused by ultraviolet rays (sunlight), a skin disorder improving agent which improves the developed skin disorder, and An object of the present invention is to provide a skin external preparation containing them.
[0005]
[Means for Solving the Problems]
The present inventors have focused on pharmaceuticals, cosmetic raw materials, and plants used in folk medicines and the like, which have already been confirmed to be safe. Ferrol and / or cholecalciferol act on abnormal proliferation of fibroblasts and abnormal production of collagen due to exposure to ultraviolet rays, and suppression and improvement of skin thickening due to cross-linking of collagen and elastin, and normal skin homeostasis. It has been found that the maintenance of an effective amount is effective in suppressing and improving skin disorders such as development of skin tumors and skin sclerosis. Further, ergocalciferol and / or cholecalciferol further suppresses erythema, inflammation, and the like caused by chemical mediators, cytokines, and the like excessively generated by exposure to ultraviolet light, and causes the formation of wrinkles, skin tumors, skin sclerosis, and the like. We have obtained new findings that suppress and improve skin disorders, and completed the present invention.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Ergocalciferol and / or cholecalciferol used in the present invention acts on abnormal growth of fibroblasts due to exposure to ultraviolet light, abnormal production of collagen, and suppression and improvement of skin thickening due to crosslinking of collagen and elastin. By maintaining normal skin homeostasis, skin disorders such as development of skin tumors and skin sclerosis are suppressed and improved. Ergocalciferol, cholecalciferol, its origin and manufacturing method is not particularly limited, ergocalciferol, for example, by extracting ergosterol using a solvent from brewer's yeast, shiitake, etc., by heating and ultraviolet irradiation can get. Cholecalciferol can be obtained industrially, for example, by irradiating 7-dehydrocholesterol with ultraviolet light.
[0007]
The skin disorder inhibitor and skin disorder improving agent of the present invention are not particularly limited as long as they contain ergocalciferol and / or cholecalciferol as an active ingredient, and may be in any form such as liquid, paste, cream, and gel. And further dried by spray drying or the like to be used as a powder.
[0008]
The content of ergocalciferol and / or cholecalciferol in the skin disorder inhibitor and the skin disorder improving agent of the present invention is preferably 0.0001 to 100% by mass (hereinafter, simply referred to as “%”), and more preferably. Is 0.0005 to 0.1%. Within this range, it acts on abnormal growth of fibroblasts due to exposure to ultraviolet light, abnormal production of collagen, and suppression / improvement of skin thickening due to crosslinking of collagen and elastin, etc., maintaining normal skin homeostasis and forming wrinkles. It is excellent in the effects of suppressing and improving the appearance of skin tumors, skin thickening and skin sclerosis, and is also excellent in stability over time.
[0009]
The skin external preparation of the present invention is characterized by containing the above-mentioned skin disorder inhibitor and / or skin disorder improving agent. The content of ergocalciferol and / or cholecalciferol in the skin external preparation of the present invention is preferably 0.0001 to 1%, more preferably 0.0005 to 0.1%. Within this range, it acts on abnormal growth of fibroblasts due to exposure to ultraviolet light, abnormal production of collagen, and suppression / improvement of skin thickening due to crosslinking of collagen and elastin, etc., maintaining normal skin homeostasis and forming wrinkles. It is excellent in the effects of suppressing and improving the appearance of skin tumors, skin thickening and skin sclerosis, and is also excellent in stability over time.
[0010]
The skin external preparation of the present invention, in addition to the above essential components, various components usually used in cosmetics, quasi-drugs, topical medicines, etc., namely, water, alcohol, oils, surfactants, thickeners, Powders, chelating agents, pH adjusters, whitening agents, anti-inflammatory agents, antioxidants, moisturizers, bactericides, blood circulation promoters, and other medicinal agents, extracts from plants, animals and microorganisms, ultraviolet absorbers, ultraviolet scattering Agents, fragrances, and the like can be appropriately added according to the purpose within a range that does not impair the effects of the present invention.
[0011]
In addition, examples of the external preparation for skin of the present invention include cosmetics, quasi-drugs, and pharmaceuticals, and the dosage form is any of aqueous preparations, oily preparations, emulsification preparations, powder preparations, and solid preparations. It can also be compounded in a mold. For example, cosmetics include lotions, emulsions, creams, serums, packs, bath salt ointments, gels, foundations, powders, lip balms, lipsticks, sunscreen products and the like.
[0012]
【Example】
Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.
Example 1: Skin damage suppression test by ultraviolet irradiation of hairless mouse A skin damage inhibitor was prepared by the following preparation method, and each test of skin thickening, skin tumor, wrinkle formation, skin hardening, and skin aging by ultraviolet irradiation was performed. Disability suppression was evaluated.
[0013]
[Preparation of sample (skin damage inhibitor)]
Ergocalciferol and cholecalciferol were dissolved in a base (polyethylene glycol 1000: ethyl alcohol = 1: 1) to prepare skin disorder inhibitors 1 to 5 shown in Table 1. The above-mentioned base was used as a comparative product.
[0014]
[Sample coating method and UV irradiation method]
Each group consisted of 8 animals, and 90 minutes before ultraviolet irradiation, the above-mentioned sample (skin damage inhibitor) was applied to the back of a hairless mouse (10 weeks old) at 0.1 g, and a fixed amount of ultraviolet light (Toshiba BLB lamp) was applied 2 times a day. Irradiation was performed for 15 hours (5 times / week) for 15 weeks (total irradiation amount: 716 J / cm 2 ), and the effect of suppressing skin thickening, skin tumor, wrinkle formation and skin hardening, and the effect of suppressing marker substances of skin aging were examined.
The ultraviolet absorption spectra of these samples were measured, and it was confirmed that these samples did not affect the evaluation test.
[0015]
[Evaluation method]
(Skin thickening inhibitory effect)
The skin thickness before ultraviolet irradiation and 15 weeks after ultraviolet irradiation was measured using a dial thickness gauge (OZAK.MFG.CO.LTD.). The results were evaluated by the average value of the thickness of the skin of eight animals and the increase rate after 15 weeks of ultraviolet irradiation.
(Skin tumor inhibitory effect)
Skin tumors were evaluated by the incidence (out of 8) of mice that developed tumors having a diameter of 0.5 mm or more.
[0016]
(Wrinkle formation suppression effect)
Regarding the formation of wrinkles after 15 weeks of ultraviolet irradiation, the wrinkle grade was determined based on the “photo-skin aging grade” shown in Table 2 below. The wrinkle grade of the hairless mouse before ultraviolet irradiation was 0 in all cases. The results were expressed as the average of the scores of the eight animals and evaluated.
[0017]
(Effect of suppressing skin sclerosis)
The central part of the back of the skin of each hairless mouse 15 weeks after ultraviolet irradiation was removed, and the skin requiring 5 seconds or more for restoration was defined as skin sclerosis, and the expression rate in 8 mice was evaluated.
[0018]
(Skin aging marker substance suppression effect)
Dermatan sulfate, a marker substance for skin aging, was obtained by exfoliating the skin on the back of a hairless mouse, decomposing it with collagenase and chondroitinase, quantifying it as a disaccharide by the HPLC method, and calculating the average value. The suppression rate of dermatan sulfate production after 15 weeks was calculated by dividing the amount of decrease in dermatan sulfate in the sample application group (application of the present invention) by the amount of dermatan sulfate in the control group (application of comparison product).
[0019]
Table 1 shows the results of evaluation of the suppression of skin thickening, skin tumor, wrinkle formation, skin hardening, and skin aging markers.
[0020]
(result)
[0021]
[Table 1]
[0022]
[Table 2]
[0023]
As is clear from Table 1, the skin disorder suppressants containing ergocalciferol and / or cholecalciferol (Products 1 to 5 of the present invention) all show significant skin thickening and development of skin tumors, wrinkles and skin hardening. In addition to suppressing the generation of the skin aging marker, it was extremely excellent.
[0024]
Example 2 Cream A cream was prepared by the composition shown in Table 3 below and the following production method, and the effect of improving skin wrinkles was evaluated.
[0025]
(Production method)
A. Components (1)-(8) and (10) are mixed and heated to 70 ° C.
B. Heat components (9) and (12) and maintain at 70 ° C.
C. Add B to A and emulsify.
D. After adding the component (11) to C, the mixture was cooled to obtain a cream.
[0026]
(Test method)
Twenty women aged 41 to 59 years were used as a panel, and an appropriate amount of the test cream was applied to the face twice a day, morning and evening, after washing the face for 15 weeks. The effect of improving the wrinkles on the skin by application was evaluated according to the following criteria, and the number of persons corresponding to each evaluation criteria was also shown in Table 3.
[0027]
(Evaluation criteria)
<Evaluation><Contents>
Effective Skin wrinkles are less noticeable.
Slightly effective Skin wrinkles are less noticeable.
Ineffective No change from before use.
[0028]
(Composition and results)
[0029]
[Table 3]
[0030]
As shown in the results of Table 3, the present invention products 6 to 10 containing ergocalciferol and / or cholecalciferol clearly showed an effect of improving skin wrinkles as compared with comparative products.
[0031]
Example 3 Emulsion An emulsion was prepared according to the composition shown in Table 4 below and the following production method, and the effect of improving skin wrinkles was evaluated.
[0032]
(Production method)
A. Components (1)-(12) and (17) are mixed and heated to 70 ° C.
B. Components (13)-(16) and (19) are mixed and heated to 70 ° C.
C. Add B to A and emulsify.
D. After adding the component (18) to C, the mixture was cooled to obtain an emulsion.
[0033]
(Test method)
Evaluation was performed in the same manner as in Example 2. Table 4 also shows the number of persons corresponding to each evaluation criterion.
[0034]
(Composition and results)
[0035]
[Table 4]
[0036]
As shown in the results of Table 4, the products 11 to 15 of the present invention containing ergocalciferol and / or cholecalciferol clearly showed an effect of improving skin wrinkles as compared with the comparative product.
[0037]
[0038]
(Production method)
A. Components (1)-(7) and (9) are mixed and heated to 70 ° C.
B. Components (8) and (11) are mixed and heated to 70 ° C.
C. Add B to A and emulsify.
D. After adding the component (10) to C, the mixture was cooled to obtain a cream.
[0039]
Example 5 Lotion (Ingredient) (%)
(1) Glycerin 10.0
(2) 1,3-butylene glycol 6.0
(3) Citric acid 0.1
(4) Sodium citrate 0.3
(5) Remaining amount of purified water (6) Cholecalciferol * 1 0.005
(7) Polyoxyethylene hydrogenated castor oil (60EO) 0.5
(8) Ethyl alcohol 8.0
(9) Preservative appropriate amount (10) Fragrance appropriate amount * 1 manufactured by Kanto Chemical Industry Co., Ltd.
(Production method)
A. Components (1) to (5) are mixed and dissolved.
B. Components (6) to (10) are mixed and dissolved.
C. A and B were mixed and made uniform to obtain a lotion.
[0041]
Example 6 Lotion (Component) (%)
(1) Glycerin 10.0
(2) 1,3-butylene glycol 6.0
(3) Citric acid 0.1
(4) Sodium citrate 0.3
(5) Remaining purified water (6) Ergocalciferol * 1 0.005
(7) Polyoxyethylene hydrogenated castor oil (60EO) 0.5
(8) Ethyl alcohol 8.0
(9) Preservative appropriate amount (10) Fragrance appropriate amount * 1 manufactured by Nakarai Tesque [0042]
(Production method)
A. Components (1) to (5) are mixed and dissolved.
B. Components (6) to (10) are mixed and dissolved.
C. A and B were mixed and made uniform to obtain a lotion.
[0043]
Example 7 Lotion (Component) (%)
(1) Glycerin 10.0
(2) 1,3-butylene glycol 6.0
(3) Lactic acid 0.1
(4) Sodium lactate 0.3
(5) Remaining purified water (6) Ergocalciferol * 1 0.002
(7) Cholecalciferol * 2 0.002
(8) Polyoxyethylene hydrogenated castor oil (60EO) 0.5
(9) Ethyl alcohol 8.0
(10) Preservative appropriate amount (11) Fragrance appropriate amount * 1 manufactured by Nakarai Tesque * 2 manufactured by Kanto Chemical Industry Co., Ltd.
(Production method)
A. Components (1) to (5) are mixed and dissolved.
B. Components (6) to (11) are mixed and dissolved.
C. A and B were mixed and made uniform to obtain a lotion.
[0045]
[0046]
(Production method)
A. Components (1) to (13) are mixed by heating and maintained at 70 ° C.
B. The components (14) to (18) are mixed by heating and kept at 70 ° C.
C. Add B to A, mix and emulsify uniformly.
D. After cooling C, (19) to (21) were added and mixed uniformly to obtain an emulsion.
[0047]
All of Examples 4 to 8 were creams, lotions, and emulsions which were excellent in stability over time and applied to the skin to improve wrinkles of the skin and make the skin firm and beautiful.
[0048]
Example 9 Ointment (component) (%)
(1) Stearic acid 18.0
(2) Cetanol 4.0
(3) Ergocalciferol * 1 0.1
(4) Preservative appropriate amount (5) Triethanolamine 2.0
(6) Glycerin 5.0
(7) Remaining purified water * 1 manufactured by Nakarai Tesque [0049]
(Production method)
A. Components (5) to (7) are mixed by heating and kept at 75 ° C.
B. Components (1) to (4) are mixed by heating and kept at 75 ° C.
C. A was gradually added to B and cooled to obtain an ointment.
[0050]
Example 9 was an ointment which was excellent in stability over time, applied to the skin, was excellent in the effect of improving skin wrinkles, and made the skin firmer and more beautiful.
[0051]
Example 10 Pack (ingredient) (%)
(1) Polyvinyl alcohol 15.0
(2) Silicic anhydride 0.5
(3) Polyethylene glycol 0.5
(4) Polyoxypropylene methyl glucoside 5.0
(5) Glycerin 5.0
(6) Remaining purified water (7) Ethyl alcohol 10.0
(8) Preservative appropriate amount (9) Ergocalciferol * 1 0.1
(10) Appropriate amount of fragrance * 1 manufactured by Nakarai Tesque [0052]
(Production method)
A. Components (1) to (6) are mixed and heated to 70 ° C. to dissolve.
B. Components (7) to (10) are mixed and dissolved.
C. B was added to A, mixed, and then cooled to obtain a pack.
[0053]
Example 11 Pack (ingredient) (%)
(1) Polyvinyl alcohol 15.0
(2) Silicic anhydride 0.5
(3) Polyethylene glycol 0.5
(4) Polyoxypropylene methyl glucoside 5.0
(5) Glycerin 5.0
(6) Remaining purified water (7) Ethyl alcohol 20.0
(8) Preservative appropriate amount (9) Cholecalciferol * 1 0.1
(10) Perfume appropriate amount * 1 manufactured by Kanto Chemical Industry Co., Ltd.
(Production method)
A. Components (1) to (6) are mixed and heated to 70 ° C. to dissolve.
B. Components (7) to (10) are mixed and dissolved.
C. B was added to A, mixed, and then cooled to obtain a pack.
[0055]
Examples 10 and 11 were packs which were excellent in stability over time and applied to the skin to improve wrinkles on the skin and make the skin firm and beautiful.
[0056]
[0057]
(Production method)
A. The components (1) to (8) are heated and mixed and dissolved.
B. Add components (14) to (19) to A, mix uniformly, and keep at 70 ° C.
C. Components (9) to (13) are uniformly dissolved and kept at 70 ° C.
D. Add B to C and emulsify uniformly.
E. FIG. After cooling D, component (20) was added to obtain a liquid foundation.
[0058]
[0059]
(Production method)
A. Components (1) to (10) are mixed and dissolved.
B. Add the components (16) to (23) to A, mix uniformly, and keep at 70 ° C.
C. Components (11) to (15) are uniformly dissolved and kept at 70 ° C.
D. Add B to C and emulsify uniformly.
E. FIG. After cooling D, component (24) was added to obtain a liquid foundation.
[0060]
Example 14 Oily foundation (component) (%)
(1) Candelilla wax 4.0
(2) Paraffin wax 5.0
(3) Vaseline 5.0
(4) Dimethylpolysiloxane 15.0
(5) Squalane 25.0
(6) Diglyceryl triisostearate remaining amount (7) Ergocalciferol * 1 0.02
(8) Cholecalciferol * 2 0.02
(9) Organically modified bentonite 3.0
(10) Titanium oxide 10.0
(11) Sericite 5.0
(12) Nylon powder 5.0
(13) Color pigment appropriate amount (14) Alkyl-modified carboxyvinyl polymer 0.1
(15) Glycerin 0.5
(16) Appropriate amount of fragrance * 1 manufactured by Nakarai Tesque * 2 manufactured by Kanto Chemical Industry Co., Ltd.
(Production method)
A. The components (1) to (8) are heated and dissolved at 80 ° C., and the components (9) to (14) are added and uniformly mixed.
B. The components (15) and (16) were added to A, mixed uniformly, and cooled and solidified to obtain an oily foundation.
[0062]
Example 15 Sunscreen milk lotion (component) (%)
(1) Polyoxyalkylene-modified organopolysiloxane 1.0
(2) Dimethyl polysiloxane 5.0
(3) Octamethylcyclotetrasiloxane 20.0
(4) Isotridecyl isononanoate 5.0
(5) 2-Ethylhexyl paramethoxycinnamate 5.0
(6) Ergocalciferol * 1 0.02
(7) Preservative appropriate amount (8) Fine particle titanium oxide 10.0
(9) Fine particle zinc oxide 10.0
(10) Zirconium oxide 5.0
(11) Polystyrene powder 3.0
(12) Trimethylsiloxysilicic acid 0.5
(13) Dipropylene glycol 3.0
(14) Ethyl alcohol 10.0
(15) Remaining amount of purified water (16) Salt 0.2
(17) Appropriate amount of fragrance * 1 manufactured by Nakarai Tesque Co., Ltd.
(Production method)
A. Components (1) to (12) are mixed and dispersed.
B. Components (13) to (16) and (17) are mixed and dissolved.
C. B was added to A and emulsified uniformly to obtain a sunscreen emulsion.
[0064]
Example 16 Sunscreen milk lotion (component) (%)
(1) Polyoxyalkylene-modified organopolysiloxane 1.0
(2) Dimethyl polysiloxane 5.0
(3) Octamethylcyclotetrasiloxane 20.0
(4) Isotridecyl isononanoate 5.0
(5) 2-Ethylhexyl paramethoxycinnamate 10.0
(6) Ergocalciferol * 1 0.05
(7) Cholecalciferol * 2 0.05
(8) Preservative suitable amount (9) Fine particle titanium oxide 8.0
(10) Fine particle zinc oxide 7.0
(11) Zirconium oxide 5.0
(12) Polystyrene powder 3.0
(13) Trimethylsiloxysilicic acid 0.5
(14) Dipropylene glycol 3.0
(15) Ethyl alcohol 10.0
(16) Remaining purified water (17) Salt 0.2
(18) Appropriate amount of fragrance * 1 manufactured by Nakarai Tesque * 2 manufactured by Kanto Chemical Industry Co., Ltd.
(Production method)
A. Components (1) to (13) are mixed and dispersed.
B. Components (14) to (17) are mixed and dissolved.
C. Add B to A and emulsify uniformly.
D. Component (18) was added to C to give a sunscreen emulsion.
[0066]
Examples 12 to 16 were excellent in stability over time and, in addition to the effects as a foundation and a sunscreen milky lotion, were also excellent in the effect of improving skin wrinkles by applying to the skin.
[0067]
【The invention's effect】
As described above, the skin disorder inhibitor containing ergocalciferol and / or cholecalciferol according to the present invention as an active ingredient has a remarkable effect on wrinkle formation, skin thickening, skin tumor occurrence and skin sclerosis caused by ultraviolet exposure. Was suppressed. Further, the skin disorder improving agent containing ergocalciferol and / or cholecalciferol as an active ingredient according to the present invention improves skin disorder developed by exposure to ultraviolet rays. Further, the external preparation for skin of the present invention containing these skin disorder suppressing agents and / or skin disorder improving agents also significantly suppresses wrinkle formation, skin thickening, skin tumor occurrence and skin sclerosis on exposure to ultraviolet light, It had an effect of improving. Therefore, the external preparation for skin of the present invention can be advantageously used as cosmetics and pharmaceuticals for the purpose of preventing skin aging.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002345789A JP2004175750A (en) | 2002-11-28 | 2002-11-28 | Dermopathy inhibitor and dermopathy improving agent, and skin care preparation for external use containing them |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002345789A JP2004175750A (en) | 2002-11-28 | 2002-11-28 | Dermopathy inhibitor and dermopathy improving agent, and skin care preparation for external use containing them |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2004175750A true JP2004175750A (en) | 2004-06-24 |
Family
ID=32706881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002345789A Pending JP2004175750A (en) | 2002-11-28 | 2002-11-28 | Dermopathy inhibitor and dermopathy improving agent, and skin care preparation for external use containing them |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2004175750A (en) |
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