C30-50 Pareth-10
molecular structure · PubChem
AKA: Polyethylene Glycol Ether, PEG Surfactant
Synthetic
Cleanser
Emulsifier
Not Clean
Alcohols, C30-50, ethoxylated (10 mol EO average molar ratio)
CAS #
246538-85-2
Form
Liquid
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
A modern ethoxylated synthetic surfactant and emulsifier developed in the mid-20th century to replace natural soap-like substances in cosmetic formulations, designed for better solubility and mildness.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR