Is Myristyl Betaine safe in cosmetics?
Myristyl Betaine has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Myristyl Betaine
Also known as: Ammonium, (carboxymethyl)dimethyltetradecyl-, hydroxide, inner salt, EINECS 220-006-9, Myristyl dimethyl betaine, UNII-95C19D1X0B
INCI: MYRISTYL BETAINE
Myristyl Betaine (CAS 2601-33-4) is a cosmetic cosmetic ingredient functioning as Surfactant (cleansing, foam boosting), antistatic, hair conditioning, skin. EU Regulation 1223/2009 status: permitted. 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 2601-33-4 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Myristyl Betaine is classified GHS Danger (H314, H315, H317, H318, H400, H410, H412) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Surfactant (cleansing, foam boosting), antistatic, hair conditioning, skin conditioning, viscosity increasing (aqueous)
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
2-[dimethyl(tetradecyl)azaniumyl]acetate
InChIKey
KKMIHKCGXQMFEU-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — not prohibited/restricted under 21 CFR; CIR reviewed
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Myristyl Betaine.
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
1 - 10 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Additional Ingredient Properties
1 property record from structured ingredient metadata.
surfactant
{"cas_number": "82460-94-4", "surfactant_type": "amphoteric", "chemical_class": "betaine", "charge_at_use_ph": "zwitterionic", "cmc_critical_micelle_concentration_mm": "0.08038649570698775", "hlb_value": "17.0", "foam_volume_ml_ross_miles": "138", "foam_quality": "creamy", "foam_stability_5min_pct": "76", "cleansing_power_rating_1_to_10": "7.920307989391175", "oil_emulsification_capacity": "good",…
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Anti-static agent
Cleaning agent
Foamant
Softener and conditioner
Surfactant (surface active agent)
Regulatory List Membership (1)
EPA Safer Chemical Ingredients List (SCIL)
Expert Verdict
Expert safety assessment and concern-level summary for Myristyl Betaine.
Regulatory Flags
potential-allergen
epa_safer_alternative
Known Synonyms
Ammonium, (carboxymethyl)dimethyltetradecyl-, hydroxide, inner salt
EINECS 220-006-9
Myristyl dimethyl betaine
UNII-95C19D1X0B
Chemical Function
Surfactant (surface active agent)
Anti-static agent
Softener and conditioner
Cleaning agent
Foamant
Regulatory Lists
inert_ingredient; non_food_use; Pesticides
SCIL (9/2019)
Australian Status
AICIS status: listed_with_terms
Specific information requirements: Obligations to provide information apply. These obligations are: 1. If the assessment report about the chemical recommends secondary notification of the chemical in particular circumstances and any of the circumstances occur in relation to the introduction (importation or manufacture) of the chemical by a person, then the...
Frequently Asked Questions
Is Myristyl Betaine allowed in the EU?
Myristyl Betaine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Myristyl Betaine do in cosmetics?
Myristyl Betaine functions as: Surfactant (cleansing, foam boosting), antistatic, hair conditioning, skin conditioning, viscosity increasing (aqueous). It is classified as a cosmetic ingredient in our database. CAS number: 2601-33-4.
Is Myristyl Betaine used outside cosmetics?
Myristyl 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 Myristyl Betaine have different safety status in cosmetics vs industrial chemicals?
Myristyl Betaine is classified GHS Danger (H314, H315, H317, H318, H400, H410, H412) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check Myristyl Betaine compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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