murphyPolyglyceryl-3 Caprylate
molecular structure · PubChem
AKA: Polyglyceryl-3 Ester, Emulsifier
Synthetic
Cleanser
Emulsifier
Clean
OriginDerived from glycerin and caprylic acid (an eight-carbon saturated fatty acid), typically sourced from coconut or palm oils. Synthesized through esterification of polyglycerin with caprylic acid under controlled conditions.
Triglyceryl Monocaprylate
CAS #
108777-93-1
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Emulsifier
Controls Odor
Brightens Skin
Lifts away dirt and oil
Neutralizes odor
Mixes oil and water
The paper trail
🔬Peer-reviewed1 paper →
⚖️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 717)
Concentration Guide
Leave-on0.05–1%
Rinse-off0.6%
0%50%100%
CIR reported use · report published 2023
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR