I've never heard that before and would be very interested to know where you read it. Because Bentonite works mechanically rather than chemically I don't know how it could drive anything deeper into the cells. In fact, Bentonite is used in some mercury/heavy metal detox protocols...both internally and externally in the form of baths. I still have a couple of Amalgams and know of many others with Amalgams who have used p&b with good results and numerous improvements in their health. Give it a go...