This entry shows data from the EU CosIng database. An editorial description has not been written and reviewed yet.
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 IV, entry 21Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate and its unsoluble barium, strontium and zirconium lakes, salts and pigments
- Maximum concentration
- Not to be used in eye products
- As of
- 3 November 2026 · (EC) 2009/1223
EU · Annex III, entry 318Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzene sulfonate
- Product type
- Hair dye substance in non-oxidative hair dye products.
- Maximum concentration
- As from 3 June 2021: 0,5 %.
- As of
- 3 November 2026 · (EU) 2020/1683