Dicetyl Ether

AKA: Dihexadecyl ether, Hexadecyl ether, COSMACOL ETHER 16
Synthetic
Emollient
Skin Conditioner
Not Clean
OriginDerived from long-chain aliphatic alcohols, typically produced from petroleum or plant-based fatty alcohol sources. Synthesized through etherification, where two cetyl alcohol molecules are chemically bonded via an oxygen linkage.
Dihexadecyl ether
Formula
C32H66O
Mol. Weight
466.90
CAS #
4113-12-6
Form
Wax
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2026
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR