murphyPropylene Glycol Dicaprylate/Dicaprate
AKA: Decanoic acid;2-octanoyloxypropyl octanoate
Synthetic
Emollient
Skin Conditioner
Clean
OriginDerived from propionic acid and fatty alcohols (capryl and capric alcohols) of synthetic or coconut origin. Synthesized through esterification reaction between the acids and alcohols under catalytic conditions.
Decanoic acid, mixed diesters with octanoic acid and propylene glycol
CAS #
68583-51-7, 58748-27-9, 68988-72-7
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-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not Comedogenic
Animal test found no comedogenicity in the CIR safety assessment (CIR 684)
Mixed Skin Irritation Results
3 studies / 1 irritating / 2 not irritating / reactions minimal (CIR 52 and 684)
Concentration Guide
Leave-on0.1–51.8%
Rinse-off0.045–14.4%
0%50%100%
CIR reported use · 2014 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR