Title:
ARBUTIN-CONTAINING EXTERNAL PREPARATION FOR SKIN
Document Type and Number:
Japanese Patent JP2009079025
Kind Code:
A
Abstract:
To provide an external preparation for skin, which stably contains arbutin not purified in a high degree in a wide pH range, uses the characteristics of one or more compounds selected from poly--L-glutamic acid, the salts of the poly--L-glutamic acid, a poly--L-glutamic acid cross-linked product, and the salts of the poly--L-glutamic acid cross-linked product, and is excellent in temporal stability.
The external preparation for skins is characterized by containing (a) one or more compounds selected from poly--L-glutamic acid, the salts of the poly--L-glutamic acid, a poly--L-glutamic acid cross-linked product and the salts of the poly--L-glutamic acid cross-linked product, and (b) arbutin.
Inventors:
SUZUKI MICHIKO
YAMAMOTO SHUHEI
KITAGAWA MASARU
SOGABE ATSUSHI
YAMAMOTO SHUHEI
KITAGAWA MASARU
SOGABE ATSUSHI
Application Number:
JP2007298989A
Publication Date:
April 16, 2009
Filing Date:
November 19, 2007
Export Citation:
Assignee:
TOYO BOSEKI
International Classes:
A61K8/64; A61K8/34; A61K8/40; A61K8/44; A61K8/49; A61K8/60; A61K8/73; A61K8/97; A61K8/98; A61K8/99
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