C11-15 Pareth-40
AKA “C11-15 Pareth-40, Pareth-40, Polyoxyethylene alkyl ether
Synthetic
Ingredient Facts
C11-15 pareth-40
AKA: Polyoxyethylene alkyl ether
Synthetic · Cleansing · EWG: 1
Synthetic
Cleanser
Synthetic
Clean
A gentle cleansing agent that helps remove dirt and oil while keeping skin feeling soft and balanced.
CAS #
173244-48-9
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.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Removes Impurities
Cleansing Surfactant
Traditional Use
Synthetic nonionic surfactant developed for high-performance cosmetic emulsification. Created in the late 20th century to provide superior stability and mildness in skincare products.
Skin Types
all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR