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Phytosteryl Nonanoate
AKA “Phytosterol Nonanoate, Plant Sterol Ester”
Skin Conditioning
Ingredient Facts
Phytosteryl nonanoate
AKA: Phytosterol Nonanoate, Plant Sterol Ester
Skin Conditioning · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Not Clean
Phytosteryl Nonanoate is the ester of Phytosterol and Nonanoic Acid
CAS #
-
Form
Oil
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A modern synthetic ester of phytosterols and nonanoic acid. Created for use in cosmetics as a lightweight emollient and skin-conditioning ingredient.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR