I've been working on researching, gathering, modifying, color correcting and all kind of retouching in skin textures for using within zbrush and photoshop, and i think that now i have a set worth sharing with the community. So here it is, use it as you see fit, it is free.
There are 168 textures.
I did a sample polypainting in a sphere, skinshader is Sebcesoir_Skinwax
Download it here
Visit my Sketchbook Thread
Download my Skin Texture Pack