Description of Petroleum Jelly Petroleum Jelly, a byproduct of crude oil, is a product made from Vaseline, paraffin oil, paraffin wax, lanolin, and vitamin E. The main ingredient in Vaseline is petroleum jelly, whic, a byproduct of crude oil, is a product made from petroleum jelly, paraffin oil, paraffin wax, lanolin, and vitamin E. The […]