Tridecyl Behenate

AKA: Tridecyl docosanoate, 42233-08-9, VBCBSDJKFLGBIX-UHFFFAOYSA-N
Synthetic
Emollient
Skin Conditioner
Plant Oil
Not Clean
Docosanoic acid, tridecyl ester
Formula
C35H70O2
Mol. Weight
522.90
CAS #
42233-08-9
Form
Liquid
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
Modern synthetic ester developed in the 20th century for use as an emollient and conditioning agent in cosmetics, offering improved spreadability and skin feel compared to traditional natural oils.
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
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed1 review
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR