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C12-13 Pareth-9
AKA “C12-13 Pareth-9, Pareth-9 C12-13”
Synthetic
Ingredient Facts
C12-13 pareth-9
AKA: Pareth-9 C12-13
Synthetic · Cleansing · EWG: 1
Synthetic
Cleanser
Emulsifier
Plant Oil
Synthetic
Clean
A gentle cleansing agent that removes oil and dirt while helping blend water and oil-based ingredients into smooth, stable formulas.
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 emulsification and solubilization in cosmetic formulations.
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
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Feb 2026
Data: CosIng · EWG · CIR