The best way - by far - to take colloidal silver for the liver is rectally - either via a therapeutic enema with colloidal silver or a syringe type rectal applicator, or perhaps even a tampon like item soaked in colloidal silver. The reason that rectal administration is best for the liver is that when anything is applied through the rectum it travels first to the liver via the portal vein system. Thus there is no issue of how much silver is able to get past the digestive system - which could be very little depending upon the product and amount taken.
One caution is that since the absorption of anything applied rectally is so high and does go straight to the liver, one might be advised to do some kind of liver cleansing as well as coffee enemas to make sure that the liver is able to process and elminate the toxic die-off and other toxins that may be produced.
As an interesting aside, I and others are currently investigating rectal administration of oleander extract (as well as sub-lingual administration) since some people have some digestive system issues that makes it difficult to take oleander orally. Rectal or sublingual administration should eliminate such issues. Stay tuned . . .