PEG-6 Propylene Glycol Caprylate/Caprate
molecular structure · PubChem
AKA: Polyethylene glycol 6 propylene glycol caprylate caprate
Synthetic
Emollient
Cleanser
Emulsifier
Skin Conditioner
Plant Oil
Not Clean
Octanoic and decanoic acids, 2-hydroxypropyl esters, ethoxylated (6 mol EO average molar ratio)
Form
Liquid
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
Synthetic emulsifier and solubilizing agent developed in the latter half of the 20th century. Engineered to dissolve both water-soluble and oil-soluble ingredients in cosmetic formulations.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
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