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Title:
AGENT SUPPRESSING DECREASE IN PRESERVATIVE ABILITY IN AMINO-ACID CONTAINING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/155280
Kind Code:
A1
Abstract:
Disclosed is an agent that suppresses a decrease in preservative ability in an amino-acid containing composition that has a sufficient preservative ability even if as low a concentration of preservative as possible is used in combination therewith. The agent that suppresses a decrease in preservative ability is of an amino-acid containing composition that contains D-amino acids. The aforementioned D-amino acids may be D-glutamic acid and/or D-lysine hydrochloride. The amount contained of the agent that suppresses a decrease in preservative ability in the amino-acid containing composition is 0.000015 mass% to 10 mas%, and may be used in combination with 0.01 mass% to 1.0 mass% of preservative. Provided is a cosmetic material that contains the aforementioned agent that suppresses a decrease in preservative ability in an amino-acid containing composition.

Inventors:
OKAWA, Masaki (2-2-1 Hayabuchi, Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
大河 正樹 (〒58 神奈川県横浜市都筑区早渕2-2-1 株式会社資生堂 リサーチセンター(新横浜)内 Kanagawa, 〒2248558, JP)
Application Number:
JP2011/060904
Publication Date:
December 15, 2011
Filing Date:
May 12, 2011
Export Citation:
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Assignee:
SHISEIDO COMPANY, LTD. (5-5 Ginza 7-chome, Chuo-ku Tokyo, 10, 〒1048010, JP)
株式会社資生堂 (〒10 東京都中央区銀座7丁目5番5号 Tokyo, 〒1048010, JP)
OKAWA, Masaki (2-2-1 Hayabuchi, Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
International Classes:
A61K8/44; A23L2/44; A61Q19/00
Attorney, Agent or Firm:
USHIKI, Mamoru (3rd Fl, Yusei Fukushi Kotohira Bldg.14-1, Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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Claims: