Petroleum jelly has been used for decades as a go-to moisturizer, lip protectant, and healing ointment. Its affordability and accessibility make it a staple in many households. But despite its popularity, it’s important to understand petroleum jelly risks, especially if you're using it regularly on your skin.
This guide breaks down the potential concerns, petroleum jelly disadvantages, and what you need to know about how it interacts with the skin barrier.
How Petroleum Jelly Works - and Why Risks Exist
Petroleum jelly is an occlusive ingredient. This means it forms a thick, protective layer on top of the skin, preventing water from evaporating. While this can lock in moisture, it can also create an environment where certain skin concerns may worsen.
The Potential Risks of Petroleum Jelly
a. Skin Barrier Issues
While petroleum jelly does not damage the barrier directly, it does not repair it either.
If your skin barrier is compromised (dryness, irritation, redness), petroleum jelly simply seals the surface, potentially trapping irritants or bacteria underneath.
Result:
You may notice breakouts, small bumps, or a worsening of existing irritation.
b. Risk of Trapped Bacteria and Breakouts
Because it is highly occlusive, petroleum jelly can prevent the skin from “breathing” (not literally, but in terms of natural oil flow).
This may:
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Trap sweat and oils
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Increase the likelihood of clogged pores
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Trigger breakouts, especially in acne-prone skin
c. Not Suitable for Oily or Acne-Prone Skin
One of the biggest petroleum jelly disadvantages is that it can make oily skin feel heavier and greasier.
People with acne-prone or sensitive skin often experience:
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Whiteheads
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Blackheads
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Increased oiliness
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Closed comedones
d. Risk of Allergic Reactions (Rare but Possible)
Pure petroleum jelly is unlikely to cause allergies—but not all products are pure.
If mixed with fragrances or additives, there’s a small chance of:
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Redness
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Sensitivity
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Itching
e. Not a Moisturizer on Its Own
Petroleum jelly does not hydrate the skin.It only locks in existing moisture, so applying it on dry skin without a hydrating layer underneath may worsen dryness over time.
Quick Comparison Table: Benefits vs. Risks
|
Category |
Benefits |
Petroleum Jelly Risks / Disadvantages |
|
Skin Barrier |
Seals the surface and prevents moisture loss |
Can trap irritants; does not repair the barrier |
|
Hydration |
Locks in moisture if applied over damp skin |
Cannot hydrate by itself; may worsen dryness if used incorrectly |
|
Breakouts |
Non-comedogenic in theory |
May clog pores in acne-prone or oily skin |
|
Healing |
Helps protect cuts and abrasions |
Can trap bacteria if applied without proper cleaning |
|
Skin Type Compatibility |
Good for dry, flaky skin |
Not ideal for oily, acne-prone, or sensitive skin |
How to Use Petroleum Jelly Safely
If you still prefer to use it, here’s how to minimize risks:
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Apply only on clean, dry skin
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Pair with a hydrating serum or moisturizer underneath
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Avoid using on acne-prone areas
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Do not apply on infected skin
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Choose pure, fragrance-free petrolatum
5. Want to Learn More About the Benefits Too?
If you're curious about the positive side of using this ingredient, don’t miss Stillman’s detailed blog: “What Does Petroleum Jelly Do for Skin?” - it pairs perfectly with this guide to offer both the pros and cons.
Final Thoughts
Petroleum jelly is safe for many people, but it isn’t the miracle product it’s often assumed to be. Understanding the potential petroleum jelly risks, how it affects the skin barrier, and whether it fits your skin type can help you make more informed skincare decisions.
