Silver directly counteract Mercury in the body which is why they mix it half and half no doubt as it takes a while before the effects of the Mercury start to really become more and more noticeable. Eventually though the silver is not enough and you need either even more silver like colloidal silver to control the Mercury but the only real fix is to get the fillings removed and be in a constant state of detox with the iodine and flush the mercury out of the brain with the colloidal gold from my perspective.