C12-13 Pareth-4
AKA “C12-13 Pareth-4, Pareth-4, Polyoxyethylene alkyl ether
Synthetic
Ingredient Facts
C12-13 pareth-4
AKA: Polyoxyethylene alkyl ether
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
A gentle cleanser that helps remove oil and dirt while keeping formulas smooth and blended together for even application.
CAS #
66455-14-9
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.
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 nonionic surfactant from the pareth family, developed in the 20th century for cleansing and emulsification in cosmetics and personal care products.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR