Actually, this forum has many threads on making liquid soap. Including tutorials. I would not suggest the CITR to anyone. Those methods are outdated and unnecessary. However, I am going to warn you that there is going to be a whole discussion on whether soap should be used for hair. I can't use it. It just is a bad idea for my hair. Others have different results. And as for oil choices, that is going to be as individual as you are. You can search "liquid shampoo" and get most of the discussions on both liquid and bar soap, AKA shampoos.