Emulsion cosmetic stably containing vitamin C
US4818521A · kind A · utility
40Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1986 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Nov 24, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/52
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An emulsion cosmetic stably containing vitamin C which comprises a mixture of L-ascorbic acid or a fatty acid ester thereof and an oil, and conventional ingredients for the emulsion cosmetic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.