murphyPropanediol Dicaprylate/Caprate
AKA: Propanediol Mixed Esters
Synthetic
Emollient
Skin Conditioner
Clean
OriginDerived from propanediol and caprylic/capric fatty acids, both obtainable from petrochemical or plant-based sources. Synthesized through esterification of propanediol with caprylic and capric acid mixtures under catalytic conditions.
Propanediol Dicaprylate/Caprate is a cosmetic ingredient used as skin conditioning - emollient. Rated low hazard by EWG. Assessed as safe by the CIR.
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 735)
Not an Eye Irritant
1 study / 1 not irritating (CIR 735)
Concentration Guide
Leave-on13.5%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2017
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR