Petroleum jelly (also called petrolatum) is a mixture of mineral oils and waxes, which form a semisolid jelly-like substance. Petroleum jelly’s benefits come from its main ingredient petroleum, which helps seal your skin with a water-protective barrier. This helps your skin heal and retain moisture. A study shows Trusted Source that petroleum jelly is effective in keeping skin moist during post-surgery healing. This may be particularly good for regular, less dramatic skin injuries. Make sure that the surface you apply petroleum jelly on is properly cleaned and disinfected. Otherwise, bacteria and other pathogens can get trapped inside and delay the healing process. Product Description: Pure cosmetic grade petroleum jelly. No fragrance oil added. Can be use directly on skin. Unscented.