Since it exists in every culture that has ever been known to man, it's not actually possible to draw conclusions in the normal way, by comparing a culture with makeup to one without. You can make claims about what it would mean for a culture not to use makeup, but if you do you should realize that those claims are, in their entirety, just some random junk you made up.
I was inferring global human culture, we didn't really develop in vacuums. And pardon my wording, I meant species, but I felt that'd imply that women were biologically disposed to wear makeup, which obviously I don't believe is true(maybe social factors caused by biology, but none still relevant in the 21st century).
More importantly, you're right though, I have zero evidence backing this up, or going against it. I just don't feel like it's very right.
