Ingredient dictionary
Paraffinum Liquidum
Also listed as: Mineral Oil, Light Mineral Oil, Liquid Paraffin
Paraffinum Liquidum is a light, colorless mineral oil made from refined petroleum. It forms a thin film on skin that slows water loss and keeps products smooth. Checked against our library November 6, 2026.
The catch: it belongs to the mineral oil and petrolatum family, which is excellent at sealing in moisture but which some people avoid by preference, especially on acne-prone skin.
- Mineral oil & petrolatum. Paraffinum liquidum, petrolatum and other refined petroleum emollients.
What Paraffinum Liquidum does
- Forms a film that slows water loss
- Softens and smooths the skin's surface
- Gives products a smooth, slippery feel
Paraffinum Liquidum is made by refining crude petroleum. The refining process removes impurities, leaving a clear, odorless oil that is liquid at room temperature. It is a lighter cousin of petrolatum, which is thicker and more solid.
Formulators use it to make products feel smooth and slip across skin. It forms a thin film that slows water loss, so it helps keep moisture in. It shows up often in lotions, moisturizers, serums, cleansers and sunscreens. It spreads easily and leaves skin feeling soft rather than tacky.
Good for
Suits dry or rough skin and products that need a lightweight seal of moisture, such as body lotions and moisturizers.
Frequently asked questions
Is paraffinum liquidum the same as mineral oil?
Yes, in most cosmetic labels. Paraffinum Liquidum is the standard ingredient name (INCI, the international naming system) for light mineral oil, the refined, colorless oil many products also list as Mineral Oil.
Does paraffinum liquidum clog pores?
Reactions differ from person to person, so there is no single answer. Some people with acne-prone skin prefer to avoid mineral oils, while others use them without trouble. If you are unsure, try a small amount on one area first and see how your skin responds.