EXTERNAL PREPARATION FOR SKIN

PROBLEM TO BE SOLVED: To provide an external preparation for skin which has a good feeling to the skin such as good compatibility to the skin, and also has an excellent skin improving effect by porphyrin production inhibition, as well as has a long-lasting moisturizing effect, a wrinkle-improving ef...

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Bibliographische Detailangaben
Hauptverfasser: IIMORI KOJI, ISHIDA MISAKI, HAYASHI SHINJI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an external preparation for skin which has a good feeling to the skin such as good compatibility to the skin, and also has an excellent skin improving effect by porphyrin production inhibition, as well as has a long-lasting moisturizing effect, a wrinkle-improving effect, and a skin texture-uniforming effect.SOLUTION: The invention provides an external preparation for skin containing (a) 0.0001-5 mass% of 1-acyl 2,3-cyclic phosphatidic acid represented by formula [I], or a salt thereof; (b) 1-10 mass% of alkanediol of carbon number 5-8; and (c) 0.01-5 mass% of polyoxyethylene sorbitan fatty acid ester or polyoxyethylene hardened castor oil. (where R represents an acyl group of carbon number 10-22.) 【課題】肌へのなじみ性などの肌への感触が良好であり、かつ保湿効果の持続性、シワ改善効果、肌のキメを整える効果に優れると共に、ポルフィリン産生抑制による肌の改善効果にも優れる皮膚外用剤の提供。【解決手段】(a)式[I]で表される1−アシル−2,3−環状ホスファチジン酸またはその塩を0.0001〜5質量%、(b)炭素数5〜8のアルカンジオールを1〜10質量%、(c)ポリオキシエチレンソルビタン脂肪酸エステルまたはポリオキシエチレン硬化ヒマシ油を0.01〜5質量%含有する皮膚外用剤。(式中、Rは炭素数10〜22のアシル基を表す。)【選択図】なし