No mineral oil/paraffin. It acts like a thick layer that never gets absorbed by the skin. It prevents the skin from breathing or getting moisturized, and could create skin conditions like eczema. It also creates an addiction for the skin that creates less needed oils on it's own. Same thing goes with children of course when it comes to common "baby oils".
Mineral oil is the byproduct of distilled gasoline, synthetically produced & it cannot spoil. Yum, sounds healthy right? It clogs up the pores, preventing the skin from breathing. It then slows down cell renewal in the skin, causing increased risks of skin disorders. It's not properly absorbed & will need harsh sulfates to fully remove it.
The small amount that gets absorbed through much difficulty of out largest breathing organ, the skin or mucus membranes, will pass through the liver & collect the fat soluble vitamins, essentially stealing them.
Use virgin coconut oil, or another light runny vegetable oil. Don't forget to test for allergies behind the pig's ear.