Gradual haircolor compositions and methods of using the same
US9474704B2 · kind B2 · utility
2Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2016 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jan 11, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/4324
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The disclosure relates to a method for gradually coloring hair comprising the steps of: a) applying an air oxidation haircolor composition to hair; b) removing the air oxidation haircolor composition from the hair directly after application; and c) repeating a set comprising the steps a) and b) in multiple spaced intervals. The air oxidation haircolor composition can include: 1) at least one primary oxidation dye intermediate; 2) at least one aromatic triol; and 3) water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.