Occlusive

Petrolatum

Petrolatum

Also known as: Petroleum Jelly

Petrolatum (petroleum jelly) is the most effective occlusive in skincare, reducing transepidermal water loss (TEWL) by up to 98%. Despite being derived from petroleum, it is non-comedogenic and non-irritating. The 'non-breathable' claim is a myth — it does not prevent oxygen exchange through the skin. Cosmetic-grade petrolatum is highly purified and safe.

Ingredient Profile

INCI Name
Petrolatum
Common Name
Petrolatum
Category
Occlusive
Function
Occlusive, skin protectant
Typical Usage Rate
1–100%
Comedogenic
0/5 — Non-comedogenic

Comedogenicity ratings are based on the rabbit ear assay model. Individual skin responses vary. See our article on comedogenicity ratings for context.

Suitable Skin Types

All skin typesDryEczema-prone

Articles Mentioning This Ingredient

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Brand Exposed

Brand Exposed: CeraVe Moisturising Cream — The Ceramide Question

27/02/2026 · 10 min read

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