Method for evaluating cosmetic for effectiveness in improving wrinkles
US9488590B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Mar 6, 2013 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The purpose of the present invention is to provide a rapid and widely practicable cosmetic-evaluating method for evaluating the performance of candidate cosmetics in improving wrinkles in the horny cell layer. Provided is a method for evaluating the effectiveness in wrinkle improvement of a candidate cosmetic by immersing a horny-cell-layer sheet having creases and wrinkles in the candidate cosmetic, and verifying the disappearance of the creases and wrinkles after drying, whereby the purpose is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.