C11-12 Isoparaffin

C11-12 Isoparaffin molecular structure
molecular structure · PubChem
AKA: Hydrocarbon, Mineral oil fraction
Synthetic
Solvent
Skin Conditioner
Clean
OriginDerived from crude oil petroleum hydrocarbons within the alkane chemical family. Produced through fractional distillation and selective hydrocarbon chain separation processes.
Alkanes, C11-12-iso
CAS #
246538-76-1
Form
Liquid
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic (CIR Panel on the ingredient group)
CIR Panel statement covering this group of ingredients; not tested individually (CIR 579)
Not Comedogenic (CIR Panel on the ingredient group)
CIR Panel statement covering this group of ingredients; not tested individually (CIR 579)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 579)
Mixed Eye Irritation Results
1 study / 1 mixed / reactions slight (CIR 579)
Mixed Skin Irritation Results
1 study / 1 mixed / reactions slight (CIR 579)
Concentration Guide
Leave-on9–67%
Rinse-off20%
0%50%100%
CIR reported use · 2010 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR