Cosmetic composition
US5545399A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1994 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Oct 24, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for topical application to the skin in order to promote the repair of photo-damaged or aged skin and/or to reduce or prevent damaging effects of ultra-violet light on skin and/or to lighten the skin comprising a hydrocalchone of general structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, represent H, --OH, --OR or --COR (where R is a C.sub.1-20 alkyl group); R.sub.4, R.sub.5, R.sub.6 and R.sub.7, which may be the same or different, represent H or --COR (where R is as herein before defined). Optional additional ingredients include sunscreens and other skin lightening skin lightening agents, particularly retinol or derivatives thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.