Interesting information from Analog Planet on Stylus Cleaner Onzow Zero Dust.

Atomic absorption will tell you also as well mass spectrometry.

we use it a lot doing analysis on fluids. 

@dover 

Yes, I can believe that about fluid residue. Before I had my Koetsu photomicrographed, I cleaned it with 95% pure ethanol. 40 hours later the pump on the electron microscope couldn't pull a sufficient vacuum because of off-gassing - and the only possibility, which I was assured was quite possible, was the alcohol.

@stereo5 , I try to warn people about items that are suspect and I get roasted for it.

Over the years we have heard from numerous ’experts’ in the analog field that there are all kinds of ’no no’s’ when it comes to stylus cleaning. I clearly remember those very same people telling everyone that the Last Stylus cleaner can migrate up the cantilever and cause problems. Then we heard that the same cleaner can damage the glue that is used to hold the stylus. We heard that US cleaning of the cantilever and stylus can damage the coils, we then heard that using BluTac is not recommended ( if I remember correctly it was due to the possibility of BluTac dislodging the cantilever assembly)...and on and on.
Now we hear that the Zerodust can leave a deposit on the stylus, which if one really looks carefully, could be from any number of various culprits...from the vinyl formulation, to the use of a cleaning brush leaving behind a CF strand, to residue left from the inner sleeve and on and on!

Maybe a better question would be to ask..and verify, IF a reduction in SQ is heard by any of these ’deposits’...and then IF the answer is ’yes’ to go about a more scientific process of ’cause and effect’...rather than assuming anything! Just IMHO.

BTW, we then have the disclosure from the source of the information...Wally tools, that they are intending to release a microscope to check on your stylus....hmm, curious timing, if nothing else!!

Remember folks, there are numerous characters in this industry who are 100% sure that all audiophiles are in fact gullible' audiofools' who are just ripe for the taking!! This industry could seriously benefit from a MAJOR clean-out of these very same folk...again IMHO.

Maybe a better question would be to ask..and verify, IF a reduction in SQ is heard by any of these ’deposits’...and then IF the answer is ’yes’ to go about a more scientific process of ’cause and effect’...rather than assuming anything! Just IMHO.

I am sure that is what started the investigation....Though I have one in my lab I do not stick my stylus under an electron microscope never have.