Title:
皮膚外用剤の安定化方法
Document Type and Number:
Japanese Patent JP3566739
Kind Code:
B2
Abstract:
A preparation for epidermis containing kojic acid and/or its derivative and a surfactant or surfactants having HLB value adjusted to 12 or less than that is disclosed. This preparation is preferably in a form of O/W emulsion or W/O emulsion, with the latter being preferably formed by gel emulsification process. The surfactants or surface active agents serve to depress coloration or decomposition of kojic acid and/or its derivative and improve application feel of the preparation.
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Inventors:
Takahisa Igaki
Application Number:
JP24483093A
Publication Date:
September 15, 2004
Filing Date:
September 30, 1993
Export Citation:
Assignee:
Sansho Pharmaceutical Co., Ltd.
International Classes:
A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/37; A61K8/49; A61K8/67; A61K8/86; A61K9/00; A61K9/107; A61K31/35; A61K31/70; A61K47/14; A61K47/26; A61Q1/12; A61Q17/04; A61Q19/00; A61Q19/02; (IPC1-7): A61K7/00; A61K7/42
Domestic Patent References:
| JP5221846A | ||||
| JP4352707A | ||||
| JP2028105A | ||||
| JP56053608A | ||||
| JP2083309A | ||||
| JP2215708A | ||||
| JP3293025A | ||||
| JP6072845A |
Attorney, Agent or Firm:
Yukio Shoko