Whereas masculinity also appeals to me on a most primal level, I cannot champion such unreasonably defined concepts of 'manliness'. In a similar vein to Chris' post, men are no longer so resolutely confined to iniquitous gender roles. A man using product to conceal his acne scars or periorbital dark circles is not a beacon of femininity, but more likely self-consciousness and insecurity. (I also loathe the misogynistic conjecture that a man feeling insecure is 'womanly', but that discussion feels
slightly off-topic.)
Either way, if I'm with a man, I want him to feel confident and attractive. If wearing make-up is what allows for him to feel that way, then I have absolutely no objections; similar to his choice to trim, shave, or leave his body hair au naturel (correct, oakpope?

) . However, I would also wish for him to feel secure in the knowledge that I see through his physical imperfections to the man beyond, and that in bed with me he needn't conceal his acne scars, blemishes, or flaws.
He is in bed with me because I want him to be there, imperfections and all - and the only reason I'd kick him out is to have sex on the floor.