Sounds obscene. And it is, but not in the way you're thinking.
Something wannabe fashion photographers seen to be obsessed with is their skin work. They seemingly spend all day turning their hapless models into plastic dolls and complimenting one another on their ability to do so.
The technique du jour is frequency separation, where you simply crush all the detail at the spatial frequencies where blemishes occur. At first glance the results are like friggin' magic.
Flipping through a fashion mag right now with a lot of high end photography. Here's the interesting thing: skin has good detail, interesting and important detail, at all spatial frequencies.
Do it with makeup, once, rather than botching it all up in shot after shot in Photoshop.