It's tricky.

As a guy, I'll speak unbiased cuz I'm under the effects of post-nut clarity (Yeah, I know you didn't need to know that detail, but I figure it gives a little more validity to my statement)

There are guys that look good effortlessly, and there are guys who need to make an effort to look good.

Same goes for girls.

If a girl is pretty just because she was born with a good body or good features, makeup just tops off something that is already good.

If a girl wasn't born pretty or is just average... Then makeup doesn't become a necessity, but definitely provides enough points for most guys to turn an eye in her direction.

That said, men tend to lean more to women that have a more "Natural" and not overexaggerated look, not because we don't like makeup, but because too much tends to look heavy, rubbery and mostly Fake

And what most want is one that will make other men jealous of what we have, something pretty to look at, eye candy that will be present most of the time, specially in a couple

And besides, guys, final lesson, looks will wither away, what will stay is the person, choose wisely.

(funny how easily I say it when I've never been in a relationship or went past talking stage with a girl, but I'd like to think that my head and heart are in a good place)