Stearoyl Inulin
AKA “Inulin derivative, Stearoyl inulin ester”
Surfactant
Ingredient Facts
Stearoyl inulin
AKA: Inulin derivative, Stearoyl inulin ester
Surfactant · Emollient · EWG: 1
Plant-Derived
Emollient
Cleanser
Emulsifier
Skin Conditioner
Clean
Inulin, octadecanoyl derivatives
CAS #
190524-47-1
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.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Locks In Moisture
Traditional Use
A synthetic derivative combining stearic acid with inulin (a polysaccharide from chicory or agave), developed in the late 20th century. Created to provide natural-derived conditioning and prebiotic benefits in cosmetic formulations.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
Dermal absorption: 2%. Source: CIR Safety Assessment (CIR Seq 680).
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR