1-NAPHTHOL

1-naphthol is a naphthol carrying a hydroxy group at position 1. It has a role as a genotoxin and a human xenobiotic metabolite.

Source: PubChem

US FDA substance register · UNII 2A71EAQ389 · registered name 1-Naphthol · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Banned

South Korea

Restricted or banned

South Korea · Taiwan

Restricted

Taiwan · United Kingdom

Source: MFDS (Korea) cosmetic regulatory information · ASEAN Cosmetic Directive · EU Cosmetics Regulation · Health Canada Cosmetic Ingredient Hotlist · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)

Argentina · Brazil

• Field of application and/or use : Oxidation dye for coloring hairs
• Maximum concentration permitted at final product : 2%
• Other limitations and requirements : In combination with hydrogen peroxide the maximum concentration in the product ready to use is 1%
• Use conditions and warnings that must appear on the label : May cause allergic reaction

Canada

• Conditions of Use by product type : (a) In Hair dyes as an oxidizing colouring agent (b) In combination with hydrogen peroxide
• Maximum Concentration Permitted : (a) 2% (b) 1%

ASEAN

• Field of application and/or use : Hair dye substance in oxidative hair dye products Use for dyeing eyelashes and eyebrows is not permitted.
• Other limitations and requirements : After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2.0%. The direction for use “wear suitable gloves” must be included in label or leaflet text.
• Conditions of use and warning which must be printed on the labels : The mixing ratio must be printed on the label. Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase your risk of allergy. Do not colour your hair if: • you have a rash on your face or sensitive, irritated and damaged scalp, • you have ever experienced any reaction after colouring your hair, • you have experienced a reaction to a temporary “black henna” tattoo in the past

China

• Maximum concentration : 1%

European Union

• Product Type, body parts : Hair dye substance in oxidative hair dye products
• Other : After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1 % calculated as free base
• Wording of conditions of use and warnings : Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past

European Union

• Product Type, body parts : Hair dye substance in oxidative hair dye products
• Other : After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2,0%
• Wording of conditions of use and warnings : To be printed on the label: Hair colorants can cause severe allergic reactions.

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 16 · applies to Hair dye substance in oxidative hair dye products

Source: EU restricted substances (Annex III)

Restriction III/16 · Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

Reviewed by CIR: Annual Review of Cosmetic Ingredient Safety Assessments: 2007-2010

Source: US Cosmetic Ingredient Review (CIR)

Reviewed by CIR: Final Report on the Safety Assessment of 1-Naphthol

Source: US Cosmetic Ingredient Review (CIR)