Quote - If your skin is coming out too red, try adjusting the PM:Tint color and also try increasing the PM:Diffuse Reflectivity.

I did both here. Compare this to the last render.

Tint changed from white to RGB(240, 255, 245)
Diffuse Reflectivity changed from .75 to .8

The Diffuse Reflectivity parameter controls how much of the incoming light is diffusely reflected. Whatever is left is what goes to the SSS calculation. So if you increase the diffuse, you're also decreasing the SSS

bumping this for future use.