Mineral Oil sits in the occlusive category, but the reason it works is specific. Inert hydrocarbon occlusive; forms impermeable barrier on skin surface reducing TEWL.
The scientific name is Paraffinum Liquidum. Inert hydrocarbon occlusive; forms impermeable barrier on skin surface reducing TEWL. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.
Typical working concentration is 1–30%. Best suited to all skin types; especially dry skin. Primary applications: moisture retention, barrier protection.
Works well with: Most ingredients.
Non-comedogenic at cosmetic grade; extensively safety-tested; misunderstood ingredient.