murphyAmmonium Isostearate
AKA: 191880-49-6
Plant-Derived
Cleanser
Emulsifier
Not Clean
OriginTypically derived from coconut, palm kernel, or soybean oils as the natural starting material. Synthesized through ammoniation and esterification of isostearic acid derived from these plant oils.
Isooctadecanoic acid, ammonium salt
Formula
C18H39NO2
Mol. Weight
301.50
CAS #
191880-49-6
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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
Reduces Inflammation
Locks In Moisture
Mixes Oil & Water
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