Hornet3d
Wise
It is a complex shader, well it is to me but then most are and the downside is it does slow the render down. I understand little of how it works but I do know where to plug in the colour and transparency maps but that is just a question of looking for the nodes with image maps marked as none so hardly difficult. Other than that I know it uses two anistotropicBsdf nodes to give highlight to the hair which very few, if any other hair shaders are able to create. For me the extra render time is well worth the sheen given to the hair and given the right hair it looks stunning, not quite photo-realistic, but for given Posers limitations it is a big step in that direction.