A nitro dye for non-oxidative hair colour, regulated in Annex III.
What it is
HC Blue No. 2 is 2,2'-[[4-[(2-hydroxyethyl)amino]-3-nitrophenyl]imino]bisethanol, a blue nitro dye that colours hair directly, without an oxidation reaction. 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 non-oxidative hair dye products, with a mandatory label warning.
Where it is used
Found in semi-permanent hair colours, toning products and other non-oxidative 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. Its position on the list does not show the final shade, which depends on the combination of dyes in the product.
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
- Product type
- Hair dye substance in non-oxidative hair dye products
- Maximum concentration
- 2.8%
- Conditions and warnings
- Can cause allergic reaction
- As of
- 3 November 2026 · (EC) 2013/344
Products with this ingredient (5)
- autumn muffin koloryzująca maska do włosów blond · Vis Plantis
- Hair in Balance by ONLYBIO Blondi Odżywka ochładzająca kolor włosów 200ml · ONLYBIO
- Hair in Balance by ONLYBIO Blondi Szampon ochładzający kolor włosów 400ml · ONLYBIO
- Hair in Balance by ONLYBIO Toner czekoladowy 100ml · ONLYBIO
- Hair in Balance by ONLYBIO Toner Piernikowy 100 ml · ONLYBIO