Dicapryl Adipate

AKA: Didecyl adipate, Didecyl hexanedioate, 105-97-5, Adipic acid didecyl ester, Di-n-Decyl adipate, Hexanedioic acid, Didecyl ester, Adipic acid
Synthetic
Emollient
Occlusive
Skin Conditioner
Not Clean
Didecyl adipate
Formula
C26H50O4
Mol. Weight
426.70
CAS #
105-97-5
Form
Powder
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Plasticiser
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 ester created in the mid-20th century as a lightweight emollient for skincare and color cosmetics. Designed to mimic the feel of natural plant-derived esters while offering improved stability.
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
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR