Milkamidopropyl Betaine
AKA “Milk protein-derived betaine
Synthetic
Ingredient Facts
Milkamidopropyl betaine
AKA: Milk protein-derived betaine
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Skin Conditioner
Plant Oil
Synthetic
Clean
A gentle plant-derived cleanser that removes oil and makeup while maintaining skin's natural moisture balance.
CAS #
188550-53-0
Form
Liquid
See origin →
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
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
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR