PLDEFRESITJęzyk: polski
INCI name

2-METHYLRESORCINOL

2-Methylresorcinol

Hair dyeingreviewed

A hair dye ingredient regulated in Annex III.

What it is

2-Methylresorcinol is a methylated derivative of resorcinol (2-methylbenzene-1,3-diol). CosIng lists it as a hair-dyeing ingredient. In the EU it is listed in Annex III (restricted substances) for oxidative and non-oxidative hair dye products and for products intended for colouring eyelashes.

Where it is used

Found in permanent hair colours and other hair and eyelash colouring products.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

See the EU regulation section for the applicable limits, conditions and warnings, which depend on the product type.

Functions

Hair dyeing
Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, permanent, depending on the length of time the colorant remains on the hair.

EU regulation

EU · Annex III, entry 2431,3-benzenediol, 2-methyl
Product type
(a) Hair dye sub­stance in oxidat­ive hair dye products (b) Hair dye sub­stance in non-oxidative hair dye products (c) Products in­tended for col­ouring eyelashes
Maximum concentration
(b) 1.8 %
Conditions and warnings
(a) To be printed on the la­bel: The mixing ratio. “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.” (c) As from 3 March 2018, to be printed on the la­bel: The mixing ratio. “This product 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 the risk of al­lergy. Eyelashes shall not be co­loured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any re­action after colouring hair or eyelashes, — has experienced a reac­tion to a temporary ‘black henna’ tattoo in the past. For professional use only. Rinse eyes immediately if product comes into contact with them”
As of
3 November 2026 · (EU) 2017/237

Products with this ingredient (33)

Check a full ingredient list