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The solid material primarily is cellulose, while the tincture contains the pharmacologically active substances; the worldwide most widely used aqueous extract, or tincture, obviously is tea. You brew it to obtain the pharmacologically active ingredients (caffeine, theobromine) and discard the solid material (the leaves).
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http://www.asiatour.com/deutsch-thai/v/versand.htm
Jan Garanoz
Juhu Tara Road, Juhu,
Mumbai - 400049 India
Last updated: March 12, 2011