Isoeicosane
AKA “52845-07-5, AR294KAG3T, ORISTAR IES, CREASIL IE, FANCOL IE, CREASIL IE CG, LIQUID ISOPARAFFIN, RefChem:791854, ISOEICOSANE [INCI]
Emollient
Ingredient Facts
Isoeicosane
AKA: 52845-07-5, AR294KAG3T, ORISTAR IES, CREASIL IE, FANCOL IE, CREASIL IE CG, LIQUID ISOPARAFFIN, RefChem:791854, ISOEICOSANE [INCI]
Emollient · Emollient · EWG: 1
Synthetic
Emollient
Solvent
Skin Conditioner
Clean
Hydrocarbons, C4, 1,3-butadiene-free, polym., pentaisobutylene fraction, hydrogenated
Formula
C20H42
Mol. Weight
282.50
CAS #
93685-79-1
Form
Liquid
See origin →
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.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks In Moisture
Traditional Use
Synthetic hydrocarbon developed for use as a lightweight, volatile emollient in modern cosmetics. Part of the synthetic hydrocarbon family created to replace heavier mineral oils with minimal traditional use history.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR