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Milk Thistle is not #1 for your Liver.
Tudca & NAC is what you want to be taking if you have Liver Issues.
Both have Clinical Studies to back up their effectiveness.
I've Vaguely Familiar with Boldo Tea.
And you have to be Extremely Careful in it's use.
This is from Web-MD on Boldo.................................. JP
BOLDO SIDE EFFECTS & SAFETY
Boldo might be UNSAFE when used for medicinal purposes. Poisoning by ascaridole, a chemical that occurs naturally in boldo, has occurred in people taking boldo. Boldo might cause liver damage when taken by mouth. If you take boldo, use only ascaridole-free preparations. When applied to the skin, boldo can cause irritation.
Special Precautions & Warnings:
Pregnancy and breast-feeding: Boldo might be UNSAFE when used orally in medicinal amounts. Ascaridole, a chemical in boldo, can damage the liver.
Bile duct blockage: Boldo seems to be able to increase the flow of bile, a fluid produced by the liver and stored in the gallbladder. Bile passes through small channels (ducts) in the intestine where it plays an important role in digesting fats. These ducts can become blocked. There is a concern that the extra bile flow caused by boldo might be harmful in people with blocked bile ducts.
Liver disease: There is some concern that boldo can damage the liver, especially in people who have liver disease. Don’t use boldo if you have liver problems.
Surgery: Boldo can slow blood clotting, so there is some concern that it might increase the chance of too much bleeding during and after surgery. Stop using boldo at least two weeks before a scheduled surgery.