C12-14 Sec-Pareth-5
molecular structure · PubChem
AKA: Secondary Pareth-5 C12-14
Synthetic
Cleanser
Emulsifier
Clean
C12-14 Sec-Pareth-5 is a polyethylene glycol ether of a mixture of synthetic secondary C12-14 fatty alcohols with an average of 5 moles of ethylene oxide
CAS #
84133-50-6
Form
Liquid
Functions
Antifoaming
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
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.
Prevents Foam Buildup
Stabilizes Emulsion
Cleansing Surfactant
Emulsifier
Lifts away dirt and oil
Reduces foam
Mixes oil and water
Keeps product blended
Traditional Use
Synthetic nonionic surfactant developed in the mid-20th century as an emulsifier and solubilizer. Created to replace natural plant-based emulsifiers in cosmetic formulations, offering improved stability and consistency.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR