Skin whitening agents
US6365137B1 · kind B1 · utility
10Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/782
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are stable compositions which are effective as skin whitening agents, comprising alpha, beta or gamma substituted mono-, di or polyhydroxy or polycarboxy carboxylic acids; mono-, di, tri or polyhydroxy alkyl compound; and effective amounts of an inhibitor of tyrosinase and a pigmentation reversing reagent. Also disclosed are methods of forming stable compositions of the type described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.