C11-13 Pareth-9
AKA “C11-13 Pareth-9, Pareth-9
Synthetic
Ingredient Facts
C11-13 pareth-9
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
A gentle cleanser that helps remove oil and impurities while keeping your product's texture smooth and blended. Works to lift dirt without stripping skin.
CAS #
-
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Removes Impurities
Cleansing Surfactant
Emulsifier
Mixes Oil & Water
Traditional Use
Synthetic nonionic surfactant developed for cosmetic use in the late 20th century. Created to provide gentle cleansing properties with improved skin compatibility.
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
C11-13 Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C11-15 Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C12-13 Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C12-14 Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C12-14 Sec-Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C12-15 Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C12-16 Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C20-40 Pareth-95
European Commission
EU Cosmetic Ingredient Database (CosIng)
Disodium C12-14 Sec-Pareth-9 Sulfosuccinate
European Commission
EU Cosmetic Ingredient Database (CosIng)
PPG-5 C12-14 Sec-Pareth-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
C11-15 Pareth-9
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
C12-13 Pareth-9
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
C12-16 Pareth-9
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Feb 2026
Data: CosIng · EWG · CIR