murphyOleyl Betaine
AKA: 871-37-4, 9-Octadecen-1-aminium, N-(carboxymethyl)-N, Inner salt, 2-[Dimethyl(octadec-9-enyl)azaniumyl]acetate
Synthetic
Cleanser
Skin Conditioner
Hair Care
Clean
OriginDerived from oleyl alcohol and betaine, both synthetic compounds from petrochemical and natural sources. Synthesized through condensation reaction between oleyl alcohol and betaine, creating an amphoteric surfactant.
9-(Z)-Octadecenaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt
Formula
C22H43NO2
Mol. Weight
353.60
CAS #
871-37-4
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.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foam Boosting
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR