Milkamidopropyl Betaine
AKA: Milk protein-derived betaine
Synthetic
Cleanser
Skin Conditioner
Plant Oil
Not Clean
1-Propanaminium, 3-amino-N-(carboxymethyl)-N,N-dimethyl-, N-milk-fat acyl derivatives, inner salts
CAS #
188550-53-0
Form
Liquid
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
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.
Locks in moisture
Traditional Use
Developed in the 20th century as a mild, plant-derived surfactant alternative. Created to replace harsher synthetic detergents while maintaining the traditional benefits associated with milk-based skincare products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR