Process for dyeing or bleaching keratin fibers using particular amino acids in high concentration
US12239726B2 · kind B2 · utility
0Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2021 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Nov 17, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/884
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a process for dyeing or bleaching keratin fibers, comprising the application to the keratin fibers of a composition comprising a high content of one or more particular amino acids followed by the application of a dyeing or bleaching composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.