When retouching photos of people there are a lot of things to take into consideration, especially when it comes to working on their skin. Retouching skin can be a very tricky thing! It's very easy for it to look too blotchy or too plastic, and normally that is not what you want. My favorite method is frequency separation, and I reference this tutorial by Sara Kiesling often. How do you retouch skin? Let us know in the comments!