A&D ointment and Vaseline are not the same product. While both contain petrolatum (petroleum jelly) as a key ingredient, A&D ointment is a blend of petrolatum (53.4%), lanolin (15.5%), and cod liver oil, while standard Vaseline is 100% pure white petrolatum. That difference in formulation changes how each one feels on the skin, what it does, and when you’d want to reach for one over the other.
What’s Actually in Each Product
A&D Original Ointment lists two active ingredients: petrolatum at 53.4% and lanolin at 15.5%. Its inactive ingredients include cod liver oil (which supplies vitamins A and D, hence the name), light mineral oil, microcrystalline wax, paraffin, and fragrance. It’s a multi-ingredient formula designed to both protect and condition the skin.
Classic Vaseline Petroleum Jelly, by contrast, is just white petrolatum. There’s nothing else in the jar. It’s a single-ingredient product with no vitamins, no lanolin, and no fragrance. Some Vaseline-branded lotions and creams (like the “Deep Moisture” line) do contain water, glycerin, and other additives, but the original jelly in the iconic blue-capped tub is pure petrolatum.
How They Protect Your Skin Differently
Both products work as occlusive barriers, meaning they sit on top of the skin and slow moisture from escaping. But they’re not equally effective at this job. Pure petrolatum, even at concentrations as low as 5%, reduces moisture loss through the skin by more than 98%. Lanolin, on the other hand, only reduces that moisture loss by about 20 to 30%. So plain Vaseline is actually a stronger moisture-sealing barrier than A&D ointment, which dilutes its petrolatum with lanolin and oils.
That said, lanolin does something petrolatum doesn’t. It closely resembles the natural oils your skin produces, so it absorbs into the outer skin layer rather than just sitting on top. This gives A&D a slight conditioning or softening effect that pure petroleum jelly lacks. The cod liver oil adds vitamins A and D, both of which support skin repair, though the amounts in A&D ointment are relatively small.
When to Use Each One
For pure moisture protection, like sealing in a moisturizer at night, protecting chapped lips, or shielding a fresh tattoo or minor wound from drying out, Vaseline’s simplicity is an advantage. It creates the strongest possible occlusive layer, and because it contains no fragrances or lanolin, it’s less likely to cause irritation or allergic reactions. Lanolin allergy is uncommon but real, affecting a small percentage of people, and fragrance sensitivity is even more common.
A&D ointment tends to get recommended for situations where skin is already irritated and could benefit from the added conditioning. It’s a staple in nurseries for diaper rash prevention, where a layer of ointment keeps urine and stool from contacting the baby’s skin. Pediatricians generally consider both Vaseline and A&D acceptable barriers for this purpose, though zinc oxide creams (like Desitin or Balmex) are often preferred for treating an active rash rather than just preventing one.
A&D is also commonly recommended after minor cosmetic procedures, tattoos, and for protecting dry, cracked skin on hands or feet. The lanolin and vitamins give it a slightly richer, more emollient feel that some people prefer for skin that’s already compromised.
Texture and Feel
You’ll notice a difference the moment you open the containers. Vaseline is translucent, slick, and sits on the skin without really absorbing. It can feel greasy for hours. A&D ointment is thicker, more opaque, and has a distinct smell from the cod liver oil and added fragrance. It feels heavier on application but absorbs slightly more than pure petroleum jelly because of the lanolin component. Some people find the scent of A&D unpleasant, while others associate it with comfort (particularly if they grew up around babies).
Can You Substitute One for the Other?
In most everyday situations, yes. If a set of care instructions says to apply Vaseline and you only have A&D, or vice versa, the outcome will be similar for basic skin protection. Both create a barrier, both keep wounds moist, and both are safe for intact or mildly irritated skin.
There are a few exceptions worth knowing. If you have sensitive or allergy-prone skin, Vaseline is the safer bet because it contains no lanolin or fragrance. If your doctor or tattoo artist specifies one product, it’s worth following that recommendation since they may have a reason tied to your specific situation. And for very premature infants or severely broken skin, the fewer ingredients the better, which again points toward plain petrolatum.
Price is also a practical difference. Vaseline is typically cheaper per ounce than A&D ointment, which matters if you’re going through a lot of it for something like daily diaper changes or large-area wound care.