Guest guest Posted February 25, 2009 Report Share Posted February 25, 2009 I wrote a little piece on xi xin and its legal status on my blog at bluepoppy.com The situation with xi xin is quite interesting. I was recently talking to some Taiwanese granule factory QC experts and some materia medica scholars in Hong Kong to learn more. Apparently in ancient times, only the root of xi xin was used. Later on, the whole plant became commonly used, but now people have returned to using only the root, since it lacks aristolochic acid. Check it out if you are interested in such things: http://www.bluepoppy.com/blog/blogs/blog1.php Eric Quote Link to comment Share on other sites More sharing options...
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