for those where IP6 apparently does nothing, try MCP: modified citrus pectin; available in 2 varities - regular and very expensive in the nanoparticle form. A motto: "A Baker's dozen might be better than one"; and don't forget your raw chocolate! Yummie.
http://www.newliving.com/issues/oct_2003/articles/modified%20citrus%20pectin.html