Planta Med 1980; 40: 84-90
DOI: 10.1055/s-2008-1075009
Research Articles

© Georg Thieme Verlag Stuttgart · New York

Bioassay of Crude Drugs for Hair Growth Promoting Activity in Mice by a New Simple Method

S. Tanaka, M. Saito, M. Tabata
  • Faculty of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
Further Information

Publication History

Publication Date:
29 April 2008 (online)


A simple method appropriate for measuring hair growth in mice has been devised in relation to the test animal's age and body region as well as of the hair-removing technique. Four commercial hair tonics and 33 crude drugs were tested by this method for their effects on hair growth in the posterior dorsal region of 5-week-old mice. The alcoholic extracts of Cinchona succirubra (bark), Dictamnus dasycarpus (root bark), Brassica juncea (seed) and Sophora flavescens (root) were found to promote hair growth in mice.