Moderate Surfactant NOAEL Data SCCS/CIR Reviewed Sensitization Data Dermal Penetration

Cocamidopropyl Betaine

Also known as: Alkateric Cab-A, Coco Amido Betaine, EINECS 263-058-8, UNII-5OCF3O11KX, Cocamidopropyl betaine (CAPB) (+1 more)

INCI: COCAMIDOPROPYL BETAINE

Cocamidopropyl Betaine (CAS 61789-40-0) is a cosmetic surfactant functioning as Surfactant; foam booster; co-surfactant; viscosity builder. Reported NOAEL =95 mg/kg bw/day in Rat (ECHA); EU Regulation 1223/2009 status: permitted; 2 safety opinions reviewed (CIR Safety Assessment). Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.

View industrial chemical safety profile for CAS 61789-40-0 →

Auto-generated CPSR Part A draft with source citations
Function
Surfactant; foam booster; co-surfactant; viscosity builder
Safety Rating
MODERATE

Chemistry & Identifiers

EC Number
263-058-8

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes CIR assessed safe as used at up to 30%. Named Allergen of the Year 2004 by American Contact Dermatitis Society. True sensitizers are manufacturing impurities DMAPA and amidoamine — not CAPB itself. High-purity grades with <5 ppm DMAPA/amidoamine significantly reduce sensitization risk. 6 of 9 patch-test-positive subjects reacted to amidoamine at 0.1% aqueous.

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Cocamidopropyl Betaine.

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for Cocamidopropyl Betaine. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL =95 mg/kg bw/day oral Rat reproduction developmental ECHA
NOAEL =286 mg/kg bw/day oral Rat developmental ECHA
NOAEL =1000 mg/kg bw/day oral Rat reproduction developmental ECHA

Safety Opinions

Official safety assessments from the Scientific Committee on Consumer Safety (SCCS) and Cosmetic Ingredient Review (CIR).

CIR Safety Assessment
Verdict: unknown
NOAEL: 500 mg/kg (not specified)
CIR Safety Assessment
Verdict: unknown
NOAEL: 250 mg/kg (oral)

Sensitization Profile

Contact sensitization data for Cocamidopropyl Betaine based on clinical patch test studies and IFRA standards.

Sensitization Rate
moderate
Allergen Class
surfactant
EU Allergen Listed
no
Patch Test Positive Rate
3.0%
Cross-reactivity Group
amidoamine-group
Reaction Type
contact-dermatitis

Source: NACDG; IVDK; ESSCA

Dermal Penetration Profile

Skin absorption and penetration characteristics of Cocamidopropyl Betaine, relevant to systemic exposure and MoS calculations.

Absorption %
6-12%
Penetration Level
stratum-corneum
Penetration Depth
stratum corneum/epidermis
Molecular Weight
342.5 Da
Log P
0.5
Systemic Absorption
minimal
Topical Bioavailability
4-10%
Safety Margin Factor
moderate
Vehicle Dependent
Yes — absorption varies by formulation

Source: CIR Expert Panel

EPA ToxValDB — Toxicity Values

10 toxicity values from EPA ToxValDB (aggregated from CCTE, HPV, ToxRefDB, IRIS, and other regulatory dossiers).

Endpoint Value Species Route Duration Source
LD50 >2000 mg/kg Rat dermal - ECHA
NOAEL =286 mg/kg-day Rat oral - ECHA
NOAEL =95 mg/kg-day Rat oral - ECHA
NOAEL =250 mg/kg-day Rat oral subchronic ECHA
NOAEL =250 mg/kg-day Rat oral subchronic ECHA
NOAEL =500 mg/kg-day Rat oral short-term ECHA
NOAEL =500 mg/kg-day Rat oral short-term ECHA
LOAEL =1000 mg/kg-day Rat oral short-term HPVIS
NOAEL =500 mg/kg-day Rat oral short-term HPVIS
NOAEL =250 mg/kg-day Rat oral chronic HPVIS

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

Typical Use Concentrations

Reported concentration ranges per product category from SCCS/CIR/industry sources.

Product Category Typical Range Max Reported Source
Shampoo 3–8 15 CIR Safety Assessment
Body Wash 3–8 15 CIR Safety Assessment
Facial Cleanser 2–6 10 CIR Safety Assessment

Additional Ingredient Properties

10 property records from structured ingredient metadata.

acne
{"cas_number": "61789-40-0", "anti_acne_mechanism": "antibacterial", "comedogenicity_rating_0_to_5": "0-1", "acne_type_efficacy": "inflammatory", "sebum_reduction_pct_clinical": "0-5", "prescription_required_usa": "No", "otc_drug_monograph_category": "No", "max_otc_concentration_pct": "No limit", "japan_quasi_drug_anti_acne": "No", "korea_functional_cosmetic_acne": "No", "eu_cosmetic_restriction_a…
allergen_detail
{"eu_allergen_listed": "no", "allergen_class": "surfactant", "cross_reactivity_group": "amidoamine-group", "patch_test_frequency_pct": "3.0", "sensitization_rate": "moderate", "common_reaction_type": "contact-dermatitis", "ifra_restricted": "no", "source": "NACDG; IVDK; ESSCA"}
baby_pediatric
{"cas_number": "61789-40-0", "ingredient_class": "cleanser_baby", "pediatric_safety_rating": "acceptable", "minimum_age_months": "6", "neonatal_safe": "yes", "premature_infant_safe": "insufficient_data", "skin_barrier_maturity_consideration": "DEBATE: Allergen potential in AD patients; impurities (DMAPA) concern", "transepidermal_absorption_risk_pediatric": "low", "systemic_exposure_concern_pediat…
comedogenicity_detail
{"comedogenicity_rating": "0", "irritancy_rating": "1", "skin_type_suitability": "all,oily,combination,normal,acne-prone", "acne_safe": "yes", "source": "Amphoteric surfactant"}
concentration
{"min_concentration_pct": "2.0", "max_concentration_pct": "10.0", "typical_concentration_pct": "5.0", "product_type": "Facial Cleanser", "function_at_concentration": "Surfactant, gentle", "source": "CIR Safety Assessment"}
cost_pricing
{"cost_tier": "budget", "estimated_cost_per_kg_usd_low": "8", "estimated_cost_per_kg_usd_high": "15", "natural_premium_markup_pct": "20", "organic_certified_premium_pct": "40", "supply_chain_volatility": "low", "primary_source_region": "Global", "synthetic_vs_natural_cost_ratio": "1.5", "bulk_discount_threshold_kg": "500", "seasonal_price_variation": "low", "commodity_or_specialty": "commodity", "…
dermal_absorption
{"molecular_weight_da": "342.5", "log_p_value": "0.5", "skin_penetration_level": "stratum-corneum", "penetration_depth": "stratum corneum/epidermis", "absorption_pct": "6-12", "systemic_absorption": "minimal", "penetration_enhancer": "yes", "occlusion_effect": "no", "vehicle_dependent": "yes", "skin_barrier_effect": "weakens", "bioavailability_topical_pct": "4-10", "safety_margin_factor": "moderat…
emulsion_hlb
{"hlb_required_as_emulsifier": "yes", "emulsifier_type": "o_w", "critical_packing_parameter": "0.28-0.42", "emulsion_stabilization_mechanism": "electrostatic_steric", "co_emulsifier_pairs": "glyceryl_oleate,cetyl_alcohol", "optimal_oil_phase_pct": "8-22", "optimal_water_phase_pct": "78-92", "electrolyte_tolerance": "high", "pH_emulsion_stability_range": "3.0-10.5", "viscosity_building_contribution…

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Anti-static agent Cleaning agent Emulsifier Foamant Softener and conditioner Surfactant (surface active agent) Thickening agent Viscosity modifier
Regulatory List Membership (3)
EU Regulated in Personal Care EU Restricted for Children (Cosmetics) EPA Safer Chemical Ingredients List (SCIL)

Expert Verdict

Expert safety assessment and concern-level summary for Cocamidopropyl Betaine.

Regulatory Flags

allergen-of-the-year-2004 sensitizer impurity-concern amphoteric foam-booster eu_children_restricted epa_safer_alternative

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Cocamidopropyl Betaine by CAS number or substance name.

Studies
3
Lowest NOAEL
95 mg/kg bw/day
Highest NOAEL
1000 mg/kg bw/day
ECHA

Known Synonyms

Alkateric Cab-A Coco Amido Betaine EINECS 263-058-8 UNII-5OCF3O11KX Cocamidopropyl betaine (CAPB) CAPB

Chemical Function

Surfactant (surface active agent) Anti-static agent Softener and conditioner Viscosity modifier Cleaning agent

Regulatory Lists

SCIL (9/2019) Europe; Vehicle - car interior Europe; Personal care - body hygiene - hand soap children; Europe; Personal care - specialized bath products - bath salts children; Europe; Personal care - body hygiene - body wash children; Europe; Personal care - specialized bath products - bubble bath children; Europe; Personal care - hair styling and care - shampoo inert_ingredient; non_food_use; Pesticides Cleaning products and household care - oven - oven cleaner; Europe children; Europe; Personal care children; Europe; Personal care Europe; Personal care - hair styling and care - shampoo-dandruff Europe; Personal care Europe; Personal care Europe; Personal care Canada; pharmaceutical Cleaning products and household care; Europe fracking; water

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Cocamidopropyl Betaine safe in cosmetics?

Cocamidopropyl Betaine has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted. 3 toxicological study endpoint(s) are available in our database. This ingredient has been reviewed by CIR Safety Assessment.

Is Cocamidopropyl Betaine allowed in the EU?

Cocamidopropyl Betaine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Cocamidopropyl Betaine do in cosmetics?

Cocamidopropyl Betaine functions as: Surfactant; foam booster; co-surfactant; viscosity builder. It is classified as a Surfactant in our database. CAS number: 61789-40-0.

What is the NOAEL for Cocamidopropyl Betaine?

The NOAEL (No Observed Adverse Effect Level) for Cocamidopropyl Betaine is =95 mg/kg bw/day based on a reproduction developmental study via oral route in Rat. A total of 3 study endpoints are available. Source: ECHA.

Is Cocamidopropyl Betaine used outside cosmetics?

Cocamidopropyl Betaine also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Cocamidopropyl Betaine have different safety status in cosmetics vs industrial chemicals?

Cocamidopropyl Betaine is classified GHS Danger (H315, H318, H319, H400, H412) in the chemicals database but is allowed in EU cosmetics.

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