Isoceteth-7
AKA “Isocetyl alcohol ethoxylate, PEG-7 isocetyl ether
Synthetic
Ingredient Facts
Isoceteth-7
AKA: Isocetyl alcohol ethoxylate, PEG-7 isocetyl ether
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
Polyoxyethylene (7) Isocetyl Ether Science: Functions: Surfactant - Cleansing, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
Effective at 10.5%
CAS #
9002-92-0; 68439-50-9; 5274-68-0; 9004-95-9; 9005-00-9; 4536-30-5; 3055-93-4; 3055-94-5; 3055-95-6
Form
Liquid
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 ethoxylated surfactant formulated as a cosmetic emulsifier in the late 20th century. Designed to balance hydrophobic and hydrophilic properties for improved product texture and stability.
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
0.0002%
21.0%
0%29%
Effective Range
CIR reported use: 0.0002-21 | 0.0002-8 | 0.2-3 | 0.2-4
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR