Method for treating hair
US6572843B1 · kind B1 · utility
5Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/065
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for treating hair, combining permanent dyeing and straightening of hair, without significantly damaging the hair. According to the method of the present invention the hair is treated by chemically reducing covalent disulfide linkages in the hair, and contacting said hair with at least one oxidoreductase, at least one mediator, and at least one chemical oxidizing agent in an amount equivalent to 0.001-1% hydrogen peroxide calculated by weight of the dyeing formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.