Laureth-5

AKA: 3055-95-6, Pentaethylene glycol monododecyl ether, C12E5, 3, 6, 9, 12, 15-PENTAOXAHEPTACOSAN-1-OL, Pentaethylene glycol dodecyl ether, Pentaethylene glycol lauryl ether, Pentaoxyethylene monododecyl ether, PEG-5 Lauryl ether, 2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethanol
Synthetic
Cleanser
Emulsifier
Clean
OriginDerived from coconut or palm kernel oils through extraction of fatty alcohols and their ethoxylation with ethylene oxide. Synthesized by reacting lauryl alcohol with five moles of ethylene oxide to create a polyethylene glycol ether.
3,6,9,12,15-Pentaoxaheptacosan-1-ol
Formula
C22H46O6
Mol. Weight
406.60
CAS #
3055-95-6
Form
Liquid
State
Hygroscopic liquid; [Sigma-Aldrich MSDS]
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
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 581)
Concentration Guide
Leave-on0.0002%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2012
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR