This is what a friend of my told me when we were in college. He was in the Art School studying Visual Design, and he said that he can’t look at Maxim or any of those skin magazines the same way anymore. “All I see is Photoshop retouching!”, he’d exclaim.

And oh, yes, I do know what he means.

Here’s before

A small child with a rock, and a couple scratches

Here’s after a couple strokes of the healing brush:

Okay, now there's a face a mother could love, right?

I used a couple things to retouch the image:
Clone Stamp, Healing Brush, Dodge, Patch, and Burn tools.