Compoatlas

1-NAPHTHOL

Official label name (INCI name, EU glossary of cosmetic ingredient names), No 137

1-NAPHTHOL: Allowed with restrictions (Annex III, entry 16), under Regulation (EC) No 1223/2009.

In plain words

What it is used for

Functions declared by manufacturers:

Hair dyeing: colours hair.

What the rules say

Allowed, with restrictions: Annex III sets the product types allowed and a warning to be printed on the packaging. Ingredient lists do not give quantities, so the concentration cannot be checked on the label; the warning can.

The text of the annexes

Allowed with restrictions

Entry
Annex III, No 16
Substance
1-Naphthol and its salts
Glossary names
1-NAPHTHOL
CAS
90-15-3
EC
201-969-4
Product type
Hair dye substance in oxidative hair dye products
Other conditions
After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1 % calculated as free base
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
Dates in the act (3)
  • Entry into force on 15 May 2013
  • Application from 11 July 2013
    It shall apply from 11 July 2013.
  • Entry into force on 11 July 2013

Excerpts from the English text published in the Official Journal. A date may concern only some substances of the act: the excerpt says so.

Allowed with restrictions

Entry
Annex III, No 16
Substance
1- Naphthalenol
Glossary names
1-Naphthol
CAS
90-15-3
EC
201-969-4
Product type
Hair dye substance in oxidative hair dye products
Other conditions
After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2,0%
Warnings
To be printed on the label: Hair colorants can cause severe allergic reactions.
Dates in the act (4)
  • Application from 11 July 2013
    etic products (1), and in particular Article 31(1) thereof, Whereas: (1) Regulation (EC) No 1223/2009 replacing Council Directive 76/768/EEC of 27 July 1976 on the approximation of the laws of the Member States relating to cosmetic products (2) will apply from 11 July 2013.
  • Entry into force on 31 July 2013
  • Application from 1 September 2013
    It shall apply from 1 September 2013.
  • Entry into force on 1 September 2013

Excerpts from the English text published in the Official Journal. A date may concern only some substances of the act: the excerpt says so.

Identity

CosIng identifier
31470
CAS (according to CosIng)
90-15-3
EC (according to CosIng)
201-969-4
Declared functions
Hair dyeing
Wikidata
Q408876
PubChem
7005
ECHA InfoCard
100.001.791
InChIKey
KJCVRFUGPWSIIH-UHFFFAOYSA-N

Classified hazard (CLP Regulation)

A classification describes an intrinsic hazard, not a risk: the risk depends on the dose, the form and the exposure.

1-naphtol

No harmonised CMR classification

Hazard classes
Acute Tox. 4 * Acute Tox. 4 * STOT SE 3
Skin Irrit. 2
Eye Dam. 1
Hazard statements
H312 H302 H335 H315 H318

Elsewhere in the world

Information on other jurisdictions. What is covered, and what is not yet.

United Kingdom (Great Britain)

  • Allowed with restrictions (Annex III)

Same entries as in the European Union. Conditions (concentrations, warnings) may differ: they are not compared here.

Switzerland

Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).

United States, federal rules

None of the integrated sections of the federal code (21 CFR 700.11 to 700.27 and 250.250) targets this name. The FDA does not publish a list of allowed ingredients.

South Korea

  • Prohibited: 1-나프톨 및 그 염류 (1-NAPHTHOL)

    별표 1 (prohibited substances), entry 17, page 1. Conditions (source text, in Korean): 화학물질명: 1-나프톨 (CAS No. 90-15-3) | ※ 유의사항 2: 1) 표시는 [별표 2] 염모제 성분에서 정한 기준에 적합한 경우는 제외한다.

  • Restricted: 1-나프톨(α-나프톨) (1-NAPHTHOL)

    별표 2, 염모제 성분 (hair colorants), entry 32, page 20. Limit: 산화염모제에 2.0 %. Conditions (source text, in Korean): 비고: 기타 제품에는 사용금지

Australia

  • Subject to conditions (threshold, labelling or packaging): 1-NAPHTHOL

    Poisons Standard, Schedule 6 (cosmetic entries), page 271. Thresholds cited: 1% or less. Conditions (source text): except in hair dye preparations containing 1% or less of 1-naphthol after mixing under oxidative conditions when the immediate container and primary pack are labelled with the following statements: | (i) KEEP OUT OF REACH OF CHILDREN; and | (ii) WARNING – This product contains ingredients which may cause skin sensitisation to certain individuals. A preliminary test according to the accompanying directions should be made before use. This product must not be used for dyeing eyelashes or eyebrows; to do so may be injurious to the eye; | written in letters not less than 1.5 mm in height.

Recorded cosmetics that contain it

8 recorded products list it, according to Open Beauty Facts contributors. Records are dated: the formula may have changed. See the list (page in French).

Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 21 October 2026.