Phytosteryl Oleate
AKA “Phytosterol Oleate, Plant Sterol Ester
Synthetic
Ingredient Facts
Phytosteryl oleate
AKA: Phytosterol Oleate, Plant Sterol Ester
Synthetic · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Synthetic
Clean
9-Octadecenoic acid, phytosterols ester Science: Functions: Hair Conditioning, Skin Conditioning Safety Ratings: CIR: Safe as used
Form
Liquid
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 synthetic ester combining phytosterols with oleic acid from plant oils. Developed for modern skincare products as an emollient and skin-conditioning agent.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR