Stable ascorbic acid preparation for topical use
US6299889A · kind A · utility
3Cited by
19References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Stable cosmetic compositions containing high levels of ascorbic acid, relatively low levels of water, varying levels of polyhydric alcohol, and organic carbonate are disclosed. The compositions may also include monohydric alcohol or hydroxyalkyl cellulose or both. The compositions are homogeneous solutions, and can be adapted to be topically applied to the skin to impart appearance benefits thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.