Poor Cosmetic Ingredient SCCS/CIR Reviewed

2,3-Naphthalenediol

INCI: 2,3-NAPHTHALENEDIOL

CAS Number
92-44-4
Function
Hair dye (oxidative)
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR concluded insufficient data to support safety; safety not substantiated

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Safety Opinions

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

cir Number 3, 1988
Verdict: unknown

Expert Verdict

Sensitizer; slightly irritating to eyes; H302 (harmful if swallowed), H315 (skin irritation); CIR requested dermal irritation, photosensitization, and sub-chronic dermal data before reassessment

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Concern Level: High

Regulatory Flags

potential-allergen eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is 2,3-Naphthalenediol safe in cosmetics?

Sensitizer; slightly irritating to eyes; H302 (harmful if swallowed), H315 (skin irritation); CIR requested dermal irritation, photosensitization, and sub-chronic dermal data before reassessment The EU classifies 2,3-Naphthalenediol as "prohibited". Safety rating: POOR. This ingredient has been reviewed by cir.

Is 2,3-Naphthalenediol allowed in the EU?

2,3-Naphthalenediol EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does 2,3-Naphthalenediol do in cosmetics?

2,3-Naphthalenediol functions as: Hair dye (oxidative). It is classified as a cosmetic ingredient in our database. CAS number: 92-44-4.

What is the Margin of Safety for 2,3-Naphthalenediol?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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