You may want to get Dr. Clarks latest updated book on HIV/AIDS.
I think I remember that she no longer requires the glycerin. But I don't remember why. Maybe someone on this forum does.
I went to http://store.yahoo.com/drclarkstore/33327.html. There you will see a complete kit for the kidney cleanse.
It does not list the glycerin.
I also went to the Self Health Resource website at the price list page and did not see the glycerin listed there either. http://www.shrc.net/currlist.pdf