One of the things I learned the hard way was that testing skin shaders in isolation is dangerous. It's all too easy to push the lights into a high intensity that looks good, but leads you to adjust the shader for a light level that is not going to work well in general.

To help with that, I devised a light meter. This is a prop that you place in the scene with the figure and you adjust the lights to a known level, which the meter helps you find. Then you work with the skin to produce good results in that level, instead of adjusting the level to produce good skin results.

You can get the meter here:

http://sites.google.com/site/bagginsbill/file-cabinet/BBLightMeter.zip?attredirects=0&d=1

Read about how to use it here:

http://www.renderosity.com/mod/forumpro/showthread.php?message_id=3627657&ebot_calc_page#message_3627657

Once your light levels produce no red on the meter, render your skin shader again and we'll talk.

Also, the very very first thing to talk about is gamma correction. Are you using render GC? If not, then you must use shader GC or you're just wasting your time.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)