Whitening compositions containing ascomycete derived enzyme
US6514506B1 · kind B1 · utility
7Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Feb 14, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to topical whitening compositions comprising a whitening effective amount of an Ascomycete-derived melanin-degrading enzyme extract and methods of preparing the composition. The compositions provide a whitening effect which occurs by degrading melanin in the skin, yet the compositions themselves do not turn dark in color. The enzyme extract can be derived from Aspergillus fumigatus or from Saccharomyces cerevisiae, and is added to the compositions of the present invention. The compositions containing the enzyme extract are twice as effective as kojic acid in producing a whitening effect on the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.