Propylene Glycol Dicaprate
molecular structure · PubChem
AKA: 53824-77-4, 1, 2-Propanediol didecanoate, Propylene glycol didecanoate, 2-Propylene glycol didecanoate, Decanoic acid, 1-methyl-1, 2-ethanediyl ester, CAPTEX 100
Synthetic
Emollient
Skin Conditioner
Clean
The CIR Expert Panel concluded that the following ingredients are safe in the present practices of use and concentration described in this safety assessment in cosmetics when formulated to be non-irritating...Propylene Glycol Dicaprate...
Effective at 1.0%
Formula
C23H44O4
Mol. Weight
384.60
CAS #
56519-72-3, 53824-77-4
Form
Liquid
Functions
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
Developed in the late 20th century as a synthetic ester combining propylene glycol with capric acid. Used in modern skincare formulations as an emollient and conditioning agent, designed to provide lightweight moisturization similar to natural oils.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
9.9e-05%
2.0%
0%14%
Reported use
CIR reported use: 0.000099-2
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR