Vaseline (petroleum jelly) is a safe and effective option for minor cuts, and dermatologists actively recommend it. The American Academy of Dermatology advises using petroleum jelly on cuts, scrapes, and scratches to keep the wound moist, which speeds healing and reduces scarring. Dry wounds that form scabs can take up to twice as long to heal compared to wounds kept moist.
How Petroleum Jelly Helps Cuts Heal
Petroleum jelly works by creating a physical barrier that seals moisture into the skin. Your skin cells need a moist environment to migrate across a wound and close it. When a cut dries out and forms a hard scab, those cells have to work underneath and around the scab, which slows the whole process considerably.
Keeping the wound moist also helps prevent scars from becoming too large, deep, or itchy. A clinical trial published in JAMA Dermatology found that patients using petroleum ointment after surgery rated their scar appearance around 7 out of 10 at the 30 and 90 day marks, comparable to results from specialized wound dressings designed for scar prevention.
Vaseline Works as Well as Antibiotic Ointment
Many people reach for Neosporin or Bacitracin when they get a cut, but the evidence suggests plain petroleum jelly does the same job. A large multicenter trial with over 900 patients found that petrolatum was as safe and effective as the topical antibiotic bacitracin in preventing infections after dermatological surgery. Both groups had similarly low infection rates.
The real difference showed up in side effects. Antibiotic ointments cause contact dermatitis (redness, swelling, itching around the wound) at a notably higher rate. One study found that surgical wounds treated with Aquaphor, a petroleum-based ointment containing additional ingredients, showed redness in 52% of cases compared to just 12% for plain white petrolatum. The petrolatum group in the large bacitracin trial reported zero cases of contact dermatitis. If you’ve ever noticed irritation around a cut after applying antibiotic ointment, the ointment itself was likely the problem.
The overall rate of wound infection with clean technique is very low, around 0.91% for surgical wounds. For a minor cut at home, the key to preventing infection is cleaning the wound thoroughly, not applying antibiotics to it.
How to Apply It Properly
Start by washing the cut with clean water and mild soap to remove any dirt or debris. Pat the area dry, then apply a thin layer of petroleum jelly over the entire wound. Cover it with a bandage or adhesive strip to keep the jelly in place and protect the wound from bacteria.
Clean the wound and reapply fresh petroleum jelly daily. Each time you change the bandage, gently wash the cut again before putting on a new layer. The American Academy of Dermatology notes that as long as you clean the wound daily, antibacterial ointments are unnecessary.
Choose the Right Product
Not all petroleum jelly is created equal. Look for products that clearly state “fully refined” or “white petrolatum” on the label. Unrefined or poorly refined petroleum jelly may contain contaminants called polycyclic aromatic hydrocarbons, which are a known carcinogen. Standard Vaseline brand petroleum jelly meets this standard, but if you’re using a generic or off-brand product, check the label before putting it on broken skin.
When Vaseline Isn’t Enough
Petroleum jelly is appropriate for minor cuts, scrapes, and scratches, the kind of everyday wounds that stop bleeding on their own within a few minutes. It is not a treatment for deep puncture wounds, animal bites, wounds with embedded debris you can’t remove, or cuts that won’t stop bleeding. These injuries carry a higher infection risk or may need stitches, and sealing them under an occlusive layer without proper medical cleaning could trap bacteria inside.
If a cut shows signs of infection after a day or two, such as increasing redness that spreads outward, warmth, swelling, pus, or red streaks moving away from the wound, petroleum jelly alone won’t resolve the problem. The same applies to any wound that hasn’t started to improve within a few days of consistent care.