PPG-4 Laureth-2
molecular structure · PubChem
AKA: Polypropylene Glycol 4 Laureth-2
Synthetic
Emollient
Emulsifier
Skin Conditioner
Not Clean
Dodecanol, ethoxylated, propoxylated (2 mol EO, 4 mol PO average molar ratio); Alcohols, C12-14, ethoxylated propoxylated
CAS #
68439-51-0
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Synthetic emulsifier derived from propylene glycol and ethoxylated lauryl alcohol. Developed to create stable, emulsified cosmetic products.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
medical-approval
all-shades-safe
Regulatory Agencies
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