PPG-1-Isodeceth-4
AKA “Polypropylene Glycol Isodecyl Ether, PPG-1-Isodeceth-4
Synthetic
Ingredient Facts
PPG-1-Isodeceth-4
AKA: Polypropylene Glycol Isodecyl Ether
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
PPG-1-Isodeceth-4 is the polyoxyethylene, polyoxypropylene ether of isodecyl alcohol Science: Functions: Cleansing, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
CAS #
-
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.
Removes Impurities
Emulsifier
Removes dirt and impurities
Mixes oil and water
Traditional Use
Developed in the mid-20th century as a synthetic surfactant and emulsifier. Created to improve the texture and stability of cosmetic formulations without natural precedent.
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 an Irritant
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR
PPG-1-Isodeceth-4 — Duck Heart Ghost