Whatever works , but I would never put straight oil or vaseline on my face. That's just my opinion.
Since I was about twenty I've been using Lubriderm on my skin. I believe it is good stuff. My wife often tells me I look at least ten years younger than other men my age. 62 . Some of that is genetic. Some is diet. Some is taking care of the skin on my face. My hands...that's another story. Almost fifty years of fly fishing, much of it before sunscreens were invented, has taken its toll on my hands. Which my wife sez look 20 years older than I do.

Good quality skin lotions, like Lubriderm and Neutrogena make a difference, IMO.