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 III, entry 2042,3-Dihydro-1H-indole-5,6-diol and its hydrobromide salt (see note 17).
- Product type
- Hair dye substance in non-oxidative hair dye products
- Maximum concentration
- 2.0%
- Conditions and warnings
- - Can cause allergic reaction - You have ever experienced any reaction afther colouring your hair - You have experienced a reaction to a temporary 'black henna' tattoo in the past
- As of
- 3 November 2026 · (EC) 2013/344