Gorgomyte is an enviromentally safe, chemically treated cloth
containing lemon oil that is the modern alternative to steel wooling
your precious frets to clean them and make them shine. Gorgomyte is
non-abrasive and gives your frets a luster that is literally
brighter than when they were new. Just wipe it on and buff it off.
Both the frets AND the fingerboard are super cleaned without wearing
out the metal or shaving of the wood. Why would you use anything
else. Pros have known about this stuff for years. Now it's your
chance to have the smoothest, fastest, singing fingerboard you've
ever played.
http://www.gorgomyte.com