Make material attributes - Brake material attributes - older version of unreal engine

Hi everyone,

I am trying to recreate the skin shader material that was introduced to male bust a while ago. There are 2 nodes that for a few days now I am trying to understand how they work. Can they be recreated using material functions instead?
Maybe your wondering what is the point.

The point is I am trying to remake this whole material for another project that is in development for a while and does not have the material attributes / brake material attributes coded inside the engine.
Is an older version. of unreal engine.

Sadly there is no way we can update the project. Do you guys think is possible to recreate these material functions?

Thank you for reading this. Any help will be appreciated.