Use of one or several substances selected from the group of pyrimidines and purines in cosmetic preparations for tanning the skin

US7270804B2 · kind B2 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Werner Berens · Bethesda, US
• Rainer Wolber · Hamburg, DE
• Christoph Smuda · Leck, DE
• Jan Batzer · Hamburg, DE
• Claudia Mundt · Bremen, DE
• Franz Stab · Echem, DE
• Thomas Blatt · Wedel, DE

Key dates

• Filing date: Apr 9, 2004
• Grant date: Sep 18, 2007
• Expiry date: May 12, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Use of one or more substances selected from the group of pyrimidines and purines for the preparation of cosmetic or dermatological preparations for boosting natural skin tanning and/or for stimulating melanogenesis in human skin.