이 원료는 아선약 Uncaria gambir에서 추출한 것이다.

Uncaria Gambir Extract is an extract of the Gambir Catechu, Uncaria gambier, Rubiaceae. It is a product which may contain resin acids and their esters, terpenes, and oxidation or polymerization products of these terpenes: Uncaria Gambir Extract is an extract of the gambir, Uncaria gambir.

本品は、アセンヤク（ガンビールノキ <I>Uncaria gambir</I> の葉及び若枝から水で抽出して得られるエキス）のエキスである。