Extracts from black yeast for whitening skin
US7291340B2 · kind B2 · utility
2Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to topical skin whitening compositions comprising a whitening effective amount of a black yeast-derived melanin-degrading enzyme extract and a method of preparing the compositions. The compositions provide a whitening effect by degrading melanin on the surface of the skin, the hair and the nails. The enzyme extract can be derived from Exophiala mansonii. The compositions containing the enzyme extract are more effective than are similar compositions containing kojic acid in producing a whitening effect on the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.