Trideceth-5

AKA: 2-(Tridecyloxy)ethanol, Ethanol, Tridecyl ethyleneglycol monoether, TRIDECETH-1, NOVEL TDA 1

Synthetic

Cleanser

Emulsifier

Clean

OriginDerived from coconut or palm oil-based fatty alcohols, specifically tridecyl alcohol. Synthesized by ethoxylation, adding five ethylene oxide units to the fatty alcohol backbone.

Poly(oxy-1,2-ethanediyl), .alpha.-tridecyl-.omega.-hydroxy; Isotridecanol, ethoxylated

CAS #

24938-91-8, 69011-36-5

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

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

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

Leave-on0.9%

Rinse-off0.2–0.9%

0%50%100%

CIR reported use · report published 2012

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR