I don't have the knowledge to answer this question, but I would suggest you go to Andreas Moritz website http://www.ener-chi.com The first page will say what the liver does and why it should be cleansed. The cleansing means liverflushing and not regular detoxing with herbs etc. He believes in cleanses.
Also under Healthinfo you can read about the lymphsystem and how this cleans the body.

I do mainly liver/bowel cleanse ( Oxypowder ) to stay clean. I also stimulate the lymphsystem with a chi-machine every day, you can also use a rebounder instead.
My lifestyle is not perfect but it is mainly based on the Ayurveda system, I try to eat according to my body type as much as I can and do food combining protein with veggies or carbohydrates with veggies, eat fruit by itself. All the info is in his book Timeless Secrets etc.

Dear Jason,

eben without beeing a Scientologist I can tell you that sweating is a great detox meaure. I used a infrared sauna bought next to nothing in the internet.
But you should be aware of the following:

If you use such a sauna make sure to take about 10 grams of activaed charcoal 2 to 3 hours before your sauna trip. Toxins released by the liver and guts get will be absorbed by the charcoal.
Furthermore form my experience (20 LFs so far)detoxing should be a continuous process. Liver Flushing alone is not sufficient IMHO. As Andreas stresses modifications in your life style, regular meals, enough water intake, regular bedtimes and the proper organis diet are important things.

I personally use activated charcoal internally on a regular base so interrupt the so called enterohepathic cycle. Thus, toxins excreted by the liver are prevented from being reabsorped in the colon. The results are impressive - at least in me, because I was highly intoxicated.

Blessings