Method and composition for hair coloring using green tea polyphenols
US6099591A · kind A · utility
6Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/498
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A hair coloring composition, and a method for using the composition in which a natural plant-derived chemical of the formula ##STR1## is employed as a coupler-modifier in a composition containing a primary intermediate and a customary coupler. The novel coupler-modifiers produce a composition which is more physiologically suitable for use in hair colorings than the prior art compositions and allows for the preparation of compositions which produce highly stable colorings over a broad range shades and tones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.