Polyglyceryl-10 Sesquistearate
AKA “Polyglyceryl-10 Sesquistearate
Synthetic
Ingredient Facts
Polyglyceryl-10 sesquistearate
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Synthetic
Clean
Polyglyceryl-10 Sesquistearate is a mixture of mono- and diesters of stearic acid and Polyglycerin-10. Science: Origin: Botanic/Natural | Functions: Surfactant - Cleansing, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
See origin →
Functions
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.
Cleansing Surfactant
Emulsifier
Removes Impurities
Mixes Oil & Water
Traditional Use
Developed in the mid-20th century as a synthetic polyglyceryl ester emulsifier. Created to replace natural gum-based emulsifiers and provide stable formulations in cosmetics and personal care products.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR