Pentaerythrityl Tetracaprylate/Tetracaprate
AKA “Pentaerythritol tetracaprylate, Pentaerythrityl octanoate/decanoate”
Emollient
Ingredient Facts
Pentaerythrityl tetracaprylate/tetracaprate
AKA: Pentaerythritol tetracaprylate, Pentaerythrityl octanoate/decanoate
Emollient · Emollient · EWG: 1
Synthetic
Emollient
Skin Conditioner
Plant Oil
Clean
Decanoic acid, mixed esters with octanoic acid and pentaerythritol
CAS #
68441-68-9
Form
Liquid
See origin →
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.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Allergic contact dermatitis caused by pentaerythrityl tetracaprylate/tetracaprate.
Al Ali A, Mireault J, Tremblay C, Sasseville D
Contact dermatitis, 2017
Pentaerythrityl Tetracaprylate/Tetracaprate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Pentaerythrityl Tetracaprylate/Tetracaprate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR