Petroleum, most commonly used in the form of petroleum jelly (such as Vaseline), is scientifically validated for use in supporting the healing of minor scratches and abrasions. Its primary benefit lies in its occlusive properties: when applied to a clean wound, petroleum jelly forms a protective barrier that locks in moisture and prevents the wound from drying out. This moist environment has been shown in multiple studies and clinical guidelines to facilitate faster epithelialization and reduce the risk of scab formation, which in turn minimizes scarring.

The American Academy of Dermatology and other reputable medical organizations recommend the use of petroleum jelly for minor wounds. Research, including a 2015 review published in the Journal of Wound Care, supports the use of non-antibiotic ointments like petroleum jelly for superficial wounds, noting comparable healing rates to topical antibiotics and a lower risk of allergic reactions.

Importantly, petroleum jelly does not possess inherent antimicrobial properties, so it should be used only on clean wounds to prevent trapping bacteria. The evidence supporting petroleum’s use for minor cuts, scratches, and abrasions is robust, with its safety, low cost, and wide availability making it a mainstay in first aid treatment.