Don't you think any olive oil soap with the least amount of additives and no coloring would work?
I've had goat's milk soap take oil off my hands better than others. I might try that sometime.
Probably. I think the olive oil thing is that oil removes oil...and then the olive oil doesn't leave behind a residue. If there are other oil based soaps, they would probably also work for the same reasons. I'm no chemist though!