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Polyglyceryl-4 Caprate
AKA “Polyglyceryl-4 Caprate, PEG-4 Caprate, Polyglycerin Caprate”
Synthetic
Ingredient Facts
Polyglyceryl-4 caprate
AKA: PEG-4 Caprate, Polyglycerin Caprate
Synthetic · Cleansing · EWG: 1
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
A gentle cleanser that helps bind water and oils together, keeping formulas smooth and easy to apply while cleansing skin.
CAS #
160391-93-5
Form
Liquid
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifier
Anti-Aging Benefits
Mixes Oil & Water
Traditional Use
A modern synthetic emulsifier developed in the late 20th century as part of the polyglyceryl ester family. Created to replace harsher chemical emulsifiers while providing natural-origin appeal and gentler skin compatibility.
Skin Types
●all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
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Verified Feb 2026
Data: CosIng · EWG · CIR