A triphenylmethane hair dye, regulated in Annex III and listed in Annex IV.
What it is
Basic Violet 2 is a cationic triphenylmethane dye with the colour index number CI 42520. CosIng lists it as a hair-dyeing ingredient. In the EU it is covered by an entry in Annex III (substances subject to restrictions) for oxidative and non-oxidative hair dye products, with a mandatory label warning, and as a colorant (CI 42520) it is also listed in Annex IV (colorants).
Where it is used
Found in a small number of hair colour 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 label warnings. The applicable conditions differ between oxidative and non-oxidative hair dye products.
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
- Maximum concentration
- Rinse-off products
- As of
- 3 November 2026 · (EC) 2009/1223
- Product type
- a) Hair dye substance in oxidative hair dye products b) Hair dye substance in non-oxidative hair dye products
- Maximum concentration
- 0.5 %
- Conditions and warnings
- a) To be printed on the label: The mixing ratio. “ 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.”
- As of
- 3 November 2026 · (EC) 2013/1197