I vote for EIS. It is not trademarked. It describes the
production process as well as the product. And the
process is very important in making it practical.
The letter E could be taken as either electrically or
electrolytically. (The latter tells more about the process.)
The letter I denotes isolation, which can be associated
with the property of oligodynamism - an amazing
characteristic of the product (increased potency upon
dilution.)

If we must have a synonym acceptable to scientists,
we could use the term used by ukrainian electrochemists
many years ago - serebrianna voda.

Matthew