Petroleum jelly’s founder, Robert Chesebrough, believed he had found the perfect formula for healing wounds. He believed in his product so much that he would apply petroleum jelly to every wound to prove they would heal faster. Not only did he apply it externally, but he also ate a spoonful of it every day until his death. However, all “medical benefits” from petroleum jelly have been debunked, and today we know that its only benefit relates to the moisturization of skin.