External skin-care composition
US5783601A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Apr 15, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed herein is an external skin-care composition comprising hydroxycarboxylic acids or derivatives thereof represented by the general formulae (1), (2), and (3), or the salts thereof: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are each independently a hydroxyl group, an amino group or an alkoxyl group which may be substituted by 1-3 hydroxyl groups, l is a number of 7-11, m is a number of 6-10, and n is a number of 5-9. This composition exhibits an excellent moisturizing effect, moisturizes the skin, has a great effect in preventing skin roughness and shows excellent effects in enhancing the clear skin tone of the skin and reducing skin dullness, and is hence particularly useful for cosmetic skin-care compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.