Skin depigmental agent

• US 4,959,393 A
• Filed: 04/27/1989
• Issued: 09/25/1990
• Est. Priority Date: 05/09/1988
• Status: Expired due to Term

• Current Assignee: Kuraray Company Limited
• Original Assignee: Kuraray Company Limited
• Inventors: Tasaka, Kenji, Shiono, Manzo, Torihara, Masahiro, Tamai, Yoshin
• Primary Examiner(s): FRIEDMAN, STANLEY
• Application Number:
  US07/343,571
• Time in Patent Office: 516 Days
• Field of Search: 514/724
• US Class Current: 514/724
• CPC Class Codes: A61K 8/347 Phenols
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 19/02 for chemically bleaching or whitening the skin

Abstract

A skin depigmental agent characterized by comprising a resorcinol derivative having a linear alkyl group is provided.

Claims

1. A skin depigmental composition, comprising a skin depigmenting effective amount of a resorcinol of the formula (1) ##STR18## wherein R is a linear alkyl group having from 2-12 carbon atoms or a linear alkyl group having from 2-12 carbon atoms in which a hydrogen atom on the linear alkyl group is substituted by a methyl group, and a cosmetic base.

2. The composition of claim 1, wherein said resorcinol comprises from 0.01-15 wt.% of said composition.

3. The composition of claim 2, wherein said resorcinol comprises 0.1-10 wt.% of said composition.

4. The composition of claim 1, wherein said cosmetic base comprises a cream, ointment, emulsion, lotion, oil or pack.

5. The composition of claim 1, wherein said cosmetic base is beeswax, cetyl alcohol, stearic acid, gylcerine, propylene glycol, propylene glycol monostearate or polyoxyethylene cetyl ether.

6. The composition of claim 1, wherein said cosmetic base is oleyl alcohol, ethanol, lauryl ether or sorbitan monolaurate.