Mineral Oil (Paraffinum Liquidum) for dryness & dehydration
Does Mineral Oil (Paraffinum Liquidum) help with dryness & dehydration? Here's the honest, structure-function read.
The most effective occlusive in common cosmetic use, and the most unfairly maligned. Cosmetic-grade mineral oil is highly refined, chemically inert and rates as non-comedogenic in testing — the acne folklore comes from crude industrial grades, not from the ingredient in your cleansing oil. It hydrates nothing itself; it simply stops water leaving.
Why it helps dryness & dehydration
- Slows water loss from the surface better than almost anything else
- Dissolves makeup and sunscreen without stripping
Full Mineral Oil (Paraffinum Liquidum) guide → · All dryness & dehydration ingredients →
Explore more K-beauty guides →🙋 People also ask
How long does Korean skincare take to work?
Most skincare, Korean or otherwise, needs time. Hydration benefits can appear quickly, but visible changes in tone, texture or fine lines typically take several weeks to a few months of consistent use, roughly one skin cycle or more. Sun protection and patience matter more than any single product.
What is 속건조 (inner dryness)?
속건조 describes skin that looks and feels oily on the surface while being tight and dehydrated underneath. It is why oily skin still needs hydration, and why stripping it makes things worse.
Does Korean skincare work for deeper skin tones?
The skincare does — hydration, barrier support and soothing actives are not tone-specific. The friction points are mineral sunscreens that leave a cast and a colour-cosmetics shade range that has historically been narrow.
✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-10.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.