PPG-2-Isodeceth-18
AKA “Polypropylene Glycol Isodeceth-18, PPG Surfactant
Synthetic
Ingredient Facts
PPG-2-Isodeceth-18
AKA: Polypropylene Glycol Isodeceth-18, PPG Surfactant
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
A gentle cleanser that helps remove dirt and oil while keeping formulas smooth and well-blended for easy application.
CAS #
155683-77-5
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
Synthetic polyethylene glycol-based surfactant developed in the mid-20th century for use as an emulsifier and solubilizer in cosmetics and personal care products. Has no traditional or historical use prior to modern synthetic chemistry.
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-2-Isodeceth-18 — Duck Heart Ghost