My library co-workers tended to be fairly subdued with their makeup. It doesn't hurt that they were generally all already attractive. However, I remember one woman at another branch who was, shall we say, enthusiastic in her application of cosmetics, and even as a non-makeup-user, I could tell her foundation was a shade or two off.
There's an old joke where an farmer asks his pastor about whether his wife wearing makeup was a sin, and the pastor hemmed and hawed a bit before saying, "You know your neighbor old Mr. Thompson? You see how his barn is cracked and peeling from age? Well, if the barn needs painting, paint it!