Myristyl Betaine
AKA “N-(carboxymethyl)-N, inner salt, Myristyl dimethyl glycine, Myristyl dimethyl betaine, (Carboxylatomethyl)dimethyltetradecylammonium, EINECS 220-006-9, N-TETRADECYL BETAINE
Synthetic
Ingredient Facts
Myristyl betaine
AKA: N-(carboxymethyl)-N, Inner salt, Myristyl dimethyl glycine, Myristyl dimethyl betaine, (Carboxylatomethyl)dimethyltetradecylammonium, EINECS 220-006-9, N-TETRADECYL BETAINE
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Skin Conditioner
Hair Care
Amino Acid
Plant Oil
Synthetic
Clean
A gentle cleanser that removes dirt and oil while conditioning hair and skin. It creates a rich lather and helps reduce static, leaving your hair smooth and manageable.
Effective at 4.91%
Formula
C18H37NO2
Mol. Weight
299.50
CAS #
2601-33-4
Form
Liquid
State
Liquid
See origin →
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
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.015%
9.8%
0%14%
Effective Range
CIR reported use: 0.53-9.8 | 0.015-8.8
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR
Myristyl Betaine — Duck Heart Ghost