GOOD GOD GUYS: I was NOT asking about theory and practice of bicycle chain lubrication.

I was asking: (or intended to ask): does anyone happen to know what pro mechanics actually use: tiny bottles like we buy in bike shops? Bulk supplies of the same? Home brew?

I'm not curious about bike lube itself. I'm curious about what the pros actually use. It's just a matter of curiousity on my part. It really doesn't matter at all in regards to influincing my own lube habits since I know and practice: lube often, use whatever you want and it will be good.