C4-5 Isoalkyl Cocoate
AKA “Isoalkyl Cocoate, Coconut Oil Ester
Emollient
Ingredient Facts
C4-5 isoalkyl cocoate
AKA: Coconut Oil Ester
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Plant Oil
Not Clean
C4-5 Isoalkyl Cocoate is the ester of a branched, saturated fatty alcohol containing 4 to 5 carbons, with Coconut Acid
CAS #
-
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
A synthetic ester derived from coconut oil fatty acids and branched-chain alcohols, developed as a stable alternative to natural coconut oil esters in cosmetic formulations.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Coconut)
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR