Bile salts are detergent-like chemicals produced by the liver and stored in the gall bladder. Bile salts help absorb certain components of food, while they prevent the absorption of other food components.
In a study in Hungary, 800 patients received bile salts for a period of 1 to 8 weeks. Almost 79% of that test group experienced complete remission of psoriasis, while only 25% of the control group had a similar improvement. The bile therapy led to long-term improvement: a follow-up two years after the intial study found that nearly 80% of the patients that received bile salts were in remission, while only 7% of the control group could say the same. [Pathophysiology. 2003 Dec; 10(1): pp.57-61]