murphyIsostearamide MIPA
AKA: 55738-53-9, Isooctadecanoic acid, Compound with 1-aminopropan-2-ol (1:1)
Plant-Derived
Cleanser
Clean
OriginTypically derived from coconut or palm kernel oils containing fatty acids and isostearic acid. Synthesized through amidation of isostearic acid with monoethanolamine (MIPA).
Isooctadecanoic acid, compound with 1-aminopropan-2-ol (1:1)
Formula
C21H45NO3
Mol. Weight
359.60
CAS #
55738-53-9
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Antistatic
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foam Boosting
Viscosity Controlling
Reduces Static
Cleansing Surfactant
Boosts Lather
Controls Viscosity
Enhances lather
Lifts away dirt and oil
Reduces flyaways
Controls product thickness
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 782)
Not a Skin Irritant
1 study / 1 not irritating (CIR 782)
Not an Eye Irritant
1 study / 1 not irritating (CIR 782)
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · report published 2025
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR