Hard to clean "black" grease / oil hands
Normally, after cleaning or removing the bicycle chain or worse "black smear" actions, you often have to wash your hands with little success or use chemically hazardous solvents or scrub your hands with washing paste.
If one rubs his hands extensively with a (arbitrary) fat cream more or less thick before the start of the work, the pores are "clogged" by this clean fat and everything dirty does not come into contact or hardly with the skin. Then you only need to wash with normal surfactant as much as the first fat needed for removal.
