What do those of you who make liquid soap use to color it? I have been looking into FD&C colorants but I am not sure these are suitable for liquid soaps.
I think they are but I never color. I leave them in their natural state.
I have seen where people used Fd&c. I think anything you use to color Melt and pour you can use in LS.
simple food coloring is fine; it's what i use with no staining of the tub or skin. If you want to get creative, mica will work, but it can settle a little if you use too much. The old saying ' a little goes a long way" definitely applies with coloring liquid soap.