DEA-Isostearate

AKA: Isooctadecanoic acid, Compound with 2, 2'-iminodiethanol (1:1), 16-Methylheptadecanoic acid--2, 2'-azanediyldi(ethan-1-ol) (1/1)
Plant-Derived
Cleanser
Emulsifier
Not Clean
OriginTypically derived from coconut, palm kernel, or soybean oils as the starting material. Synthesized through esterification of isostearic acid with diethanolamine (DEA).
Isooctadecanoic acid, compound with 2,2'-iminodiethanol (1:1)
Formula
C22H47NO4
Mol. Weight
389.60
CAS #
93920-28-6
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Removes Impurities
Cleansing Surfactant
Emulsifier
Mixes Oil & Water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Caution
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Status
USA✔ permitted
EU✔ permitted
JAPAN✔ permitted
CANADA✔ permitted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR