I'm sure it does help but if you keep it clean thats 99% of the battle.
I keep mine pretty clean and haven't used noalox in almost .... errr ..... never
And while too much probably couldn't hurt it is super sticky and makes all the dirt and lint collect and stay right where you
don't want it .... on the contact points. So if it were up to me (and its not) I would say very very little or none at all.