Adding mud on hair as a layered material possible

Hey guys, dont know much about shaders so wanted to ask first before starting to dig deeper into this. I am trying to add mud on hair and I was thinking it might be a good idea to try a layered material. Is it possible to convert the hair shader epic came out with to be used in a layered material setup so i can add the mud on top as a second layer?
Thanks in advance :slight_smile: