Ingredient
Cocamidopropyl Betaine
CAPB
Cocoamidopropyl betaine
What it is
A mild, coconut-derived amphoteric surfactant widely used as a secondary cleansing and foam-boosting agent in shampoos, body washes, and facial cleansers, often paired with harsher sulfates to soften a formula's overall profile.
How it works
As an amphoteric surfactant it lowers surface tension to lift away oil and debris, and its co-surfactant action stabilizes foam and helps thicken cleansing formulas.
What it does
Surfactant
Cleansing
Viscosity controlling
Antistatic
Concerns to know
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Contact allergen
Can act as a skin sensitiser for a minority of people; patch test if your skin is reactive.