And here the math room setup I used on the skin. It worked pretty good for my light setup.

From the texture, to a hsv node where I change the Hue, Saturation and Value slightly.

This hsv node has 3 outputs:

1. Goes to Math_functions/Substract to make a B&W map to feed the Displacement Input_1.
2. Goes to Math_Functions_2/Substract to make a softer map to feed the Blender_2 Input_1 that will feed the Blinn node afterwards.
3. Goes to Diffuse_Color at 0.85

Displacement at 0.01 Goes to a Blender where a Turbulence _2 is mixed with the B&W output from the hsv node

Alternate_Specular goes to a Blinn node that gets its data from Blender_2 where the softer map from the hsv node is mixed with the Turbulence_2

This setup gives lots of flexibility.

1. Use the hsv node to "color" the skin. => very controllable

2. Use Displacement to get some skin detail => Darker parts, like, brows, get more displacement

3. Use the Alternate_Specular to get the "shine". => Darker parts, like brows,  get less "shine". the lighter skin gets more shine.

Click to enlarge.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!