You CAN actually do whatever you like in music! If whatever you like sounds good (even just to you), then yes, it's permissable. Not many musicians go to the firing squad for playing what they want, regardless - although there's an idea there somewhere!
Seriously, by the time you've counted all the notes from the parallel scales and modes, there's none left. They all feature somewhere! The most common borrowing is major/minor, which actually gives you C D E♭ E F G A♭ A B♭ and B. In fact, the only missing notes are just the two - C♯ and F♯. And if you include C blues scale that's F♯ catered for! Oh, and the missing C♯ comes out to play when tts is used. There you are - all of them.
As I say to students at some point - even though you know all the scales, you can use any note anywhere at any time in any piece. It's just being cute enough to know where it'll fit best. But it will fit somewhere!
Incidentally, using pentatonic minor notes is no different - they're already covered in the minor scale notes.