Myristyl Betaine
AKA: 2601-33-4, 1-Tetradecanaminium, N-(carboxymethyl)-N, Inner salt, Myristyl dimethyl glycine, Myristyl dimethyl betaine, (Carboxylatomethyl)dimethyltetradecylammonium, N-TETRADECYL BETAINE, Hydroxide
Synthetic
Cleanser
Skin Conditioner
Hair Care
Amino Acid
Plant Oil
Clean
(Carboxylatomethyl)dimethyltetradecylammonium
Effective at 4.91%
Formula
C18H37NO2
Mol. Weight
299.50
CAS #
2601-33-4
Form
Liquid
State
Liquid
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
Traditional Use
Developed in the mid-20th century as a synthetic amphoteric surfactant derived from myristic acid (a fatty acid from coconut and palm oils). Created to provide mild cleansing properties while reducing skin irritation compared to harsher detergents.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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