PPG-1 Trideceth-6

AKA: Polypropylene Glycol Surfactant

Synthetic

Cleanser

Skin Conditioner

Clean

Tridecanol, ethoxylated, propoxylated (6 mol EO, 1 mol PO average molar ratio)

CAS #

-

Form

Liquid

Functions

Skin Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Cleansing

Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.

Locks in moisture

Traditional Use

A modern synthetic surfactant and emulsifier developed in the late 20th century. It was engineered to provide milder cleansing and emulsifying properties compared to stronger surfactants, meeting demands for gentler contemporary cosmetic formulations.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not an Irritant

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

Verified Jun 2026

Data: CosIng · EWG · CIR