Is 1-Naphthaleneacetic Acid safe in cosmetics?
1-Naphthaleneacetic Acid has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
1-Naphthaleneacetic Acid
Also known as: NAA, 2-(1-Naphthyl)acetic acid, 2-(Naphthalen-1-yl)acetic acid, 2-(α-Naphthyl)ethanoic acid, Alphaspra (+14 more)
INCI: 1-NAPHTHALENEACETIC ACID
1-Naphthaleneacetic Acid (CAS 86-87-3) is a cosmetic cosmetic ingredient functioning as Skin conditioning ; primarily known as plant growth regulator (1-NAA). 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 and pharmaceutical data.
View industrial chemical safety profile for CAS 86-87-3 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
1-Naphthaleneacetic Acid is classified GHS Danger (H302, H315, H318, H319, H335, 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
Skin conditioning ; primarily known as plant growth regulator (1-NAA)
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
2-naphthalen-1-ylacetic acid
InChIKey
PRPINYUDVPFIRX-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not specifically regulated for cosmetics; registered as agricultural PGR in USA
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for 1-Naphthaleneacetic Acid.
Calculate MoS for your specific formulation with the MoS Calculator.
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (2)
Endocrine Disruptors
Potential endocrine disrupting compound
Source: NORMAN Suspect List Exchange
Skin Eye Respiratory Irritation
A skin, mucous membrane, and severe eye irritant. | Dusts may cause nasal irritation.
Source: Hazardous Substances Data Bank (HSDB)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Softener and conditioner
Expert Verdict
Expert safety assessment and concern-level summary for 1-Naphthaleneacetic Acid.
Known Synonyms
NAA
2-(1-Naphthyl)acetic acid
2-(Naphthalen-1-yl)acetic acid
2-(α-Naphthyl)ethanoic acid
Alphaspra
Appl-set
Caswell No. 589
EINECS 201-705-8
EPA Pesticide Chemical Code 056002
Floramon
Fruit Fix
Hormofix
Klingtite
Liqui-stik
1-Naphthtaleneacetic acid
alpha-Naphthyleneacetic acid
Niagara-stik
NU-Tone
Pimacol-sol
Chemical Function
Softener and conditioner
Regulatory Lists
Canada; pharmaceutical
active_ingredient; Europe; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical data.
SOURCE
ChEMBL / DrugCentral / FAERS
DB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
ChEMBL ID
CHEMBL428495
Frequently Asked Questions
Is 1-Naphthaleneacetic Acid allowed in the EU?
1-Naphthaleneacetic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does 1-Naphthaleneacetic Acid do in cosmetics?
1-Naphthaleneacetic Acid functions as: Skin conditioning ; primarily known as plant growth regulator (1-NAA). It is classified as a cosmetic ingredient in our database. CAS number: 86-87-3.
Is 1-Naphthaleneacetic Acid used outside cosmetics?
1-Naphthaleneacetic Acid also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does 1-Naphthaleneacetic Acid have different safety status in cosmetics vs industrial chemicals?
1-Naphthaleneacetic Acid is classified GHS Danger (H302, H315, H318, H319, H335, H412) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check 1-Naphthaleneacetic Acid compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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