the right ones like pro gold work, they keep the sound from degrading not improving it.
The BIG THING is to not use too much!
Whatever kind is used apply only enough to coat the surfaces. Usually wipe off any that will come off with a dry paper towel (Viva towels do not scratch)
The coating only needs (and should be) a few microns thick!
Too much is what degrades the sound after awhile. (a really big problem with too much Tweek)
I use a product called STABILANT 22A; which is an electrical contact enhancer. It has been around for a long time and is used heavily in the electronics industry. I own a 20 year old media duplication and media editing company; and have used it extensively in our three studios. Works great and dosen't leave a film or get sticky. Also used in my mostly McIntosh and JM Lab audio systems at home too.