Sometimes beauty innovations come from the most unlikely places. Chemist Robert Chesebrough discovered petroleum jelly while visiting an oil rig back in the mid-1800s. The drillers were using the cream (then called "rod wax") to heal cuts and sores. In Chesebrough's Brooklyn lab, it became Vaseline. Over the decades, it has morphed from a medicinal salve to a drugstore regular.
The iconic product: Vaseline Pure Petroleum Jelly ($4)