Decyltetradeceth-5
AKA “Decyl Tetradecyl Ether 5EO, Emulsifier
Synthetic
Ingredient Facts
Decyltetradeceth-5
AKA: Decyl Tetradecyl Ether 5EO, Emulsifier
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
Science: Functions: Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
Effective at 1.6%
CAS #
-
Form
Liquid
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifier
Mixes Oil & Water
Traditional Use
A synthetic polyethylene glycol ether surfactant created for cosmetic formulation purposes, designed to provide emulsification and solubilization properties in modern skincare products.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.2%
3.0%
0%4%
Effective Range
CIR reported use: 0.7-2 | 1-3 | 0.2-3
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR