Mineral Oil and Petrolatum
Mineral Oil and Petrolatum — highly refined petroleum-derived ingredients used in skincare primarily as occlusives that form a protective layer to slow water loss from the skin. Mineral oil is a light liquid emollient, while petrolatum (petroleum jelly) is a semi-solid, and both are prized for being inert, stable, and well tolerated.
Key points
- Both work mainly as occlusives, reducing transepidermal water loss to help skin retain hydration.
- Cosmetic-grade mineral oil and petrolatum are highly purified and considered non-comedogenic and non-irritating by regulatory and dermatological sources.
- Petrolatum is widely used in barrier repair, wound-care, and slugging routines because of its strong occlusive effect.
- They are odorless, colorless, and very stable, which makes them common in products for dry and compromised skin.
Frequently asked
Does mineral oil clog pores?
Cosmetic-grade mineral oil is highly refined and generally regarded as non-comedogenic, meaning it is not considered a common cause of clogged pores for most people.
What is the difference between mineral oil and petrolatum?
Mineral oil is a lightweight liquid emollient, while petrolatum is a semi-solid, more heavily occlusive substance often used for intensive barrier protection.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
