murphyDecyl Betaine
AKA: 2644-45-3, 1-Decanaminium, N-(carboxymethyl)-N, Inner salt, Capryldimethylbetaine, CAPRYL BETAINE, Decyldimethylammonioacetate, LONZAINE 10S
Synthetic
Cleanser
Skin Conditioner
Hair Care
Not Clean
OriginDerived from coconut or palm-based fatty alcohols and dimethylamine, both common surfactant precursors. Synthesized through quaternization, where dimethylamine reacts with fatty alcohol derivatives to form the betaine structure.
(Carboxymethyl)decyldimethylammonium hydroxide
Formula
C14H29NO2
Mol. Weight
243.39
CAS #
2644-45-3
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
Viscosity Controlling
Locks in moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️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