PPG-23-Steareth-34
AKA: Surfactant, Emulsifier
Plant-Derived
Emollient
Cleanser
Emulsifier
Skin Conditioner
Barrier Lipid
Not Clean
Alcohols, lanolin, ethoxylated, propoxylated (34 mol EO, 33 mol PO average molar ratio)
CAS #
9038-43-1
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Locks In Moisture
Traditional Use
Synthesized in modern cosmetic chemistry by combining propylene glycol with stearyl and polyethylene glycol ethers. Developed as an emulsifier and conditioning agent for contemporary skincare 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