Pentaerythrityl Tetracaprylate/Tetracaprate

Pentaerythrityl Tetracaprylate/Tetracaprate 1
AKA: Pentaerythritol tetracaprylate, Pentaerythrityl octanoate/decanoate
Synthetic
Emollient
Skin Conditioner
Plant Oil
Clean
Decanoic acid, mixed esters with octanoic acid and pentaerythritol
CAS #
68441-68-9
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
Synthetic esters combining pentaerythritol with caprylic and capric acids (derived from coconut oil), developed in modern cosmetics as emollients and texture agents.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR