Compositions and methods for inhibiting the formation of unwanted skin pigmentation
US5773014A · kind A · utility
35Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Oct 7, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions for inhibiting the formation of unwanted skin pigmentation combine high tyrosinase blocking capabilities with stability in cosmetic preparations, absence of significant cytotoxic effects and synergy of action. The active components of the compositions include extracts of certain selected plants, namely, mulberry, saxifrage, grape and scutellaria root; and, preferably, ethylenediaminetetraacetic acid (EDTA). These ingredients are combined with various cosmetically acceptable carriers to produce cream and lotion formulations capable of whitening skin safely and effectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.