Common Name(s): Mineral oil/paraffin,petroleum hydrocarbon emollient,occlusive barrier

CAS Number: N/a

DESCRIPTION

What It Does: Forms an occlusive lipid film reducing tewl, softens and smooths skin, and provides a long-lasting emollient effect from the hydrocarbon film's low volatility and high stability.

Why It's Used: The most extensively safety-tested cosmetic emollient — cosmetic-grade mineral oil has a 80+ year safety record with zero documented systemic absorption or sensitisation concerns. its inertness makes it the reference standard for hypoallergenic baby care.

How It Works: Linear and branched c15–c40 paraffin hydrocarbons form a non-polar surface film with water contact angle ~0° (spreads on skin). the film reduces tewl by 40–60% through physical occlusion of the sc surface; the inert hydrocarbon chains have no biological interaction with skin proteins explaining the exceptional safety and non-sensitising profile.

Typically Found In: Baby care,emollient bases,sensitive skin

TECHNICAL DETAILS

Primary Category: Functional ingredient – emollient

Secondary Functions: Barrier sealing,softening

Application Areas:

Typical Concentration Range: 1%–80%

SOURCING & ETHICS

Vegan Status: Conditional - supplier confirmation required

Halal Status: Unverified - supplier confirmation required

Source Notes: Plant-derived, synthetic or animal-derived. verify source. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 1/5 – low; formulation-dependent

Sensitivity Concerns: Non-irritating.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. ewg score: 1.

Works Well With: Humectants,ceramides,actives as carrier

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Cosmetic-grade mineral oil (pharmaceutical grade, fully refined) is distinct from industrial mineral oils — iarc carcinogen designation applies to untreated/mildly treated industrial mineral oils, not the highly refined pharmaceutical/cosmetic grade used in personal care.

Last Verified: 2026-03-12

Primary Sources: Cosing database,mineral oil cosmetic grade safety review