I'd be skeptical. Have you tried claybaring it? That might help more than nufinish. Or, you could stop running into ****, that'd probably work better 
+1 To that. If you're not gonna make it look pretty, why bother cleaning it up? lolSo, not waxing the car doesn't bother you, but 3 little smudges do?
Dude, wtf are you doing to make your headliner dirty? I know you're not tall enough for your greasy *** polish hair to be on it (wait, confusing you with Pete here).Sorry to go off topic here. Since the master detailer is answering questions though, what's the best thing to use to clean our headliners? Mine is disgusting.
The only reason why I said the detailer, is from what I've seen, a lot of them come in the box together. The thing about the detailer though, is if you're working when it's hot out, you don't stand the risk of a few runaway suds drying on the paint. That is all.dont waste your money on that detailer spray crap. buy the clay bar, wash the car really good. rinse off. and use FRESH soapy water with the clay bar on the scuffs. no need to spend the extra 5.00 or so on the detailer spray. soapy water will work just as good and save you some coin.
just walk into any auto parts store, and go to the detailing isle. look for a package that says clay bar. grab the mild one, there are 3-4 different types. from light to heavy.