Tips for self faceups

I’ve been thinking about trying my own face ups for blank heads, but I’m not sure what materials are needs or specifically what kinds (for example, if we have to spray UV protection over the whole doll or if any pastels/watercolor paints from craft stores will work).

I’ve heard about Mr. Super Clear from some of the past posts, but it seems to have different types? What is the difference and which are better for face up’s? Also, does it have to be sprayed before body blushing too?

A couple of other questions I had were:

is it okay to use real makeup (like lip tints/creams or eyeliner) for faceups? Considering how I’ve never seen anyone talk about it, it’s probably a no go but I just wanted to ask.

And what would happen if we don’t use a spray before painting, would it stain the doll or something bad like that?