I believe that the herbs come from all over the world.
India is a large producer, and so is China.

Notice the lack of mention of where the herbs come from in this
long "assurance" page. Those of us here have seen many many websites with believeable information, like this that sort of ignore the basic questions, while providing lots of other details.
And I notice too that quantities of the herbs are not listed. So you don't know how much is in each capsule?

http://www.healthconcerns.com/why_assurance.php

Often what is not said can be the most important.

For example, Guggulipids were very popular a while back and hopefully were going to become a replacement for statins to control cholesterol. Many "quality assured" suppliers in US provided them. Then a person in Boston decided to test them himself and found LEAD in them. Just about all gugguls came from India and the lead was traced to there.

http://docs.google.com/viewer?a=v&q=...NDaaRQd_41GbVg

Just before this information broke, a well known supplier in Canada -- Jarrow-- stopped making their guggul product.
I sent emails to two others, and they didn't even respond back to me!
Here is the Canadian info:
http://www.medicalnewstoday.com/releases/27621.php

So it is not only China. What the Chinese often do and this has happened with many of their herbal products is lace them with drugs. Statins, phenylbutazone (an anti-inflammatory taken off the market in US due to toxicity) and digoxin, have been found in various herbal mixtures for cholesterol, arthritis, and heart herbs respectively.

This link is very interesting too:
http://www.ebmedicine.net/topics.php...=19&seg_id=301

So I have to confess I remain skeptical. But is your choice in the end , however. With a complex diagnostic problem, removing variables is important, to get more accurate results in testing.
If phenylbutazone were in that product or heavy metals, you would certainly have toxicity issues clouding all your efforts for
help.

Keep in mind that licorice root is not safe for long term administration as it affects blood pressure and potassium levels.

This Commission E reference would be a good place to look up your herbal list, to find out facts about safety and effectiveness.
http://cms.herbalgram.org/commissione/index.html

We just had a poster on our PD forum buy a product from a doctor in India, purported to help Parkinson's. I don't know much about it, but I think this subject is on several blogs at this time. Well, she put the "pills" in a closet and it they were attacked by rats, which died there! This is her post!
Rather icky I do confess...but one can never tell what is going to happen sometimes!

http://neurotalk.psychcentral.com/thread160536.html