The ingredient, explained
Cocamidopropyl Betaine
Cocamidopropyl Betaine has published research relevant to cosmetic safety assessment.
Ingredient guide
What it is and what it does
Cocamidopropyl betaine is a cleansing surfactant. In formulas it also has foam-boosting and texture-control roles.
About this ingredient: CosIng identity and functions via Open Beauty Facts ↗ · European Commission ingredient function definitions ↗
- Antistatic
- Reduces the build-up of static electrical charge on surfaces.
- Cleansing
- Helps remove material from the body surface.
- Foam boosting
- Changes the amount, texture or stability of foam.
- Hair conditioning
- Improves cosmetic hair properties such as softness, shine or combability.
- Viscosity controlling
- Adjusts how thick or fluid a product is.
- Surfactant
- Changes surface tension to help a product distribute or interact with other materials.
Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗
Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.
A closer look
What the research shows
Safety assessment
The panel required formulation to be nonsensitizing and discussed minimizing sensitizing amidoamine impurity contamination.
What this does not tell us
Conditional safety review with impurity and sensitization limitations, not a cleansing efficacy trial or a claim that contact allergy cannot occur.
Sources for this summary. PubMed 22869896 ↗
Research review checked Oct 1, 2026
Selective exact-identity review of 2 supplied local candidates and the targeted primary-source search recorded below. Bounded review, not a systematic search.
Ingredient research is not proof that a product containing this ingredient works.
Read the 1 selected study
Safety assessment
Final report of the Cosmetic Ingredient Review Expert Panel on the safety assessment of cocamidopropyl betaine (CAPB). ↗
International journal of toxicology · 2012
Follow the formula
Products containing this ingredient
From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.
Names and identifiers
Registry identity
1-Propanaminium, 3-amino-N--carboxymethyl--N,N-dimethyl-, N-coco acyl derivs., hydroxides, inner salts
- INCI name on ingredient lists
- COCAMIDOPROPYL BETAINE
- CAS registry number
- 61789-40-0
- EC number
- 263-058-8/931-296-8
Sources for this ingredient record
- EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗ · ODbL 1.0 (Open Beauty Facts database) · Recorded Aug 8, 2026
- European Commission ingredient function definitions ↗ · Recorded Sep 30, 2026

