murphyLauramidopropyl Hydroxysultaine
molecular structure · PubChem
AKA: Softazoline LSB-R, Softazoline LSB, 19223-55-3, RALUFON CAS-OH, 1-Propanaminium, 2-hydroxy-N, Inner salt
Synthetic
Cleanser
Skin Conditioner
Hair Care
Clean
OriginDerived from coconut or palm kernel oils, which are converted to fatty acid derivatives through chemical processing. Synthesized by condensation of fatty acid amides with hydroxysultaine compounds through esterification and sulfonation reactions.
N-(3-Dodecanamidopropyl)-2-hydroxy-N,N-dimethylammoniopropanesulfonate
Formula
C20H42N2O5S
Mol. Weight
422.60
CAS #
19223-55-3
Form
Powder
State
Liquid; Other Solid
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
Viscosity Controlling
Locks in moisture
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 Skin Irritant
1 study / 1 not irritating (CIR 750)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 750)
Eye Irritant in Testing
1 study / 1 irritating (CIR 750)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2024
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR