Pentaerythrityl Tetracaprylate/Tetracaprate
AKA “Pentaerythritol tetracaprylate, Pentaerythrityl octanoate/decanoate”
Synthetic
Ingredient Facts
Pentaerythrityl tetracaprylate/tetracaprate
AKA: Pentaerythritol tetracaprylate, Pentaerythrityl octanoate/decanoate
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Plant Oil
Synthetic
Clean
A lightweight moisturizing oil that softens and conditions skin without feeling greasy, helping to lock in hydration and improve skin texture.
CAS #
68441-68-9
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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
Melanin-Rich Skin
Suitable
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 Feb 2026
Data: CosIng · EWG · CIR