Cosmetic compositions
US6309657A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q1/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are cosmetic compositions, including lipsticks, comprising from 0.01% to about 50%, by weight, of cylindrical crystalline vitamin B.sub.3 particles having a particle size distribution such that at least about 70% of the crystalline particles have a height to width ratio greater than 1; from about 1% to about 90%, by weight, of an emollient component; from about 1% to about 90%, by weight, of a solidifying agent; and from about 1% to about 90%, on an anhydrous basis, of a color. The compositions provide improved skin feel of crystalline vitamin B3 compounds when applied to skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.