Petroleum jelly has many surprising uses ... when a Pennsylvanian chemist began refining the semi-solid mixture of liquid (mineral oil) and solid (paraffin wax and microcrystalline wax ...

"Petroleum jelly is an oily substance made from mineral ... It's produced by refining crude oil, which results in a semi-solid mixture of liquid (mineral oil) and solid (paraffin wax and ...

Petroleum jelly, also known as petrolatum, is a substance that has played a crucial role in both medical and cosmetic fields for more than a century. Originally discovered in the oil industry ...