Title:
SKIN-WHITENING COSMETIC
Document Type and Number:
Japanese Patent JP2711782
Kind Code:
B2
Abstract:
PURPOSE: To provide a skin-whitening cosmetic wherein the action of L-ascorbic acid to suppress the melanin formation is increased synergetically, thus showing excellent skin-whitening effect and further prophylactic and curing effects for blots and freckles caused by sun burning.
CONSTITUTION: (A) At least one compound selected from L-ascorbic acid and water-soluble L-ascorbic acid derivatives (for example, a monovalent to trivalent metal salt of L-ascorbic acid ester with phosphoric acid or sulfuric acid and (B) Puerariae Radix extract, for example, the extract of the roots with a solvent such as water, ethanol, methanol, 1,3-butylene glycol and/or propylene glycol, or the powder prepared by drying the extract or isoflavon derivatives isolated from the extract are combined in such amounts as A=0.001 to 30wt.%, preferably 0.1 to 5wt.%, B=0.001 to 10wt.%, preferably 0.01 to 5wt.% to give the objective skin-whitening cosmetic having the above-stated effects.
Inventors:
Susumu Tsuneo
Kimura Mitsutoshi
Masuharu Masuda
Yuji Suzuki
Yoshihiro Minematsu
Kimura Mitsutoshi
Masuharu Masuda
Yuji Suzuki
Yoshihiro Minematsu
Application Number:
JP29450592A
Publication Date:
February 10, 1998
Filing Date:
November 02, 1992
Export Citation:
Assignee:
Kao Corporation
International Classes:
A61K8/67; A61K8/00; A61K8/96; A61K8/97; A61Q19/00; A61Q19/02; (IPC1-7): A61K7/48; A61K7/00
Domestic Patent References:
| JP5139949A | ||||
| JP5279032A |
Attorney, Agent or Firm:
Miyuki Ariga (3 outside)