Hair coloring compositions
US6398821B1 · kind B1 · utility
26Cited by
10References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jun 23, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A hair coloring composition comprising: (a) an inorganic peroxygen oxidizing agent; and (b) an oxidative hair coloring agent; wherein the pH of each of components (a) and (b) is in the range of from about pH 1 to about pH 4.5 and wherein the pH of the composition is in the range of from about pH 1 to about pH 4.5. The products can provide excellent hair coloring and in-use efficacy benefits including excellent initial color and good wash fastness in combination with reduced hair damage at low pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.