Petrolatum is another name for petroleum jelly, an ingredient that helps slow moisture loss from the skin. But a moisturizer containing petrolatum, a jar of plain petroleum jelly, and a product described as an ointment are not automatically the same formula. The useful comparison starts with the complete label.
This guide is for US adults reading everyday skincare packaging. It explains ingredient names and label sections, not how to treat a skin condition or use an ointment for wound care.
Petrolatum, petroleum jelly, and ointment
Health Canada identifies petroleum jelly as a common name for petrolatum and notes its use in products such as moisturizers and lip balms. Here, that source supports the terminology, not a claim about US product approval.
“Ointment” describes a product format. It does not tell you that the container holds only petrolatum. DermNet lists ointments among moisturizer formats and petroleum jelly among occlusive ingredients. Occlusives form a surface layer that reduces water evaporation from the outer skin layer.
These words answer different questions: petrolatum names an ingredient; ointment describes the form of a product. Our lotion, cream, and ointment guide covers the texture decision. The examples below focus on identifying what is actually in the container.
Three label situations to tell apart
1. Petrolatum appears in a moisturizer’s ingredient list
That establishes that the ingredient is included. Read the remaining names rather than shortening the whole formula to “petroleum jelly.” A moisturizer may combine ingredients with different jobs, as our guide to moisturizing ingredient roles explains.
If your question is whether two moisturizers have the same ingredients, compare both complete declarations. A shared mention of petrolatum is only one point of agreement. Keep the exact product name beside each list so that a similar package or description does not become a substitute for the product you have.
2. The label explicitly states white petrolatum 100%
A specific petroleum jelly label published on DailyMed lists white petrolatum USP at 100% as its active ingredient, identifies its purpose as a skin protectant, and lists no inactive ingredient. This is a real label example, not a product recommendation.
The percentage is stated on that label; it has not been calculated from the ingredient’s position. Do not transfer it to a different jar simply because both packages say “ointment” or mention petrolatum. Check what the particular package declares.
3. An ointment has a longer ingredient declaration
Record the full declaration before deciding whether it matches the plain petroleum jelly example. Additional ingredients mean you have more information to compare. A shorter or longer list, on its own, does not answer which texture you will prefer or whether the product fits its intended use in your routine.
This comparison is about identifying formulas, not ranking them. If a package or online listing leaves the composition unclear, ask the manufacturer for the complete current label instead of filling the gap yourself.
When there is Drug Facts, read the separate sections
In the United States, a product’s intended use determines whether it is regulated as a cosmetic, a drug, or both, as the FDA explains. A familiar skincare ingredient does not make the rest of a Drug Facts panel optional.
The FDA’s Drug Facts guide distinguishes active ingredients, purpose, uses, warnings, directions, and inactive ingredients. Read the whole panel, including storage information. The active-ingredient amount answers a composition question; the directions and warnings answer different questions about using that product.
Our ingredient-list guide covers ordinary cosmetic declarations. Keep the two reading tasks separate rather than treating every name on a Drug Facts panel as part of one cosmetic ingredient list.
Make one clear comparison note
For each product, write down its exact name, the full ingredient declaration, whether Drug Facts is present, and the intended use. Then finish this sentence: “I can confirm ___ from the label; I still need to ask ___.”
For example, you might confirm that two products contain petrolatum while still needing to check whether their remaining ingredients differ. This small record is more useful than calling every thick ointment petroleum jelly. It can resolve a question without adding another step to your basic skincare routine.
Sources and editorial note
Sources were checked on November 4, 2026. US labeling information comes from the FDA; Health Canada supports ingredient terminology, and DermNet supports moisturizer terminology. The label comparison is an editorial reading aid. This article was prepared with AI assistance and checked against the linked sources. It has not been reviewed by a dermatologist. No products were tested. The AI-generated cover is conceptual editorial artwork, not a photograph of an actual product or product test. Read our Editorial Policy.
