Hi there

Not sure but this looking more like material settings of hair,please check if there plugged translucency and ambient or check my settings

Here is quick 30 sample render

here are settings

and here are hair settings

if you don't or not using EZSkin then I would use EZSkin 3 for hair and skin too,I've used only EZSkin for skin not for hair there

Hope this helps

Thanks,Jura