Why do hairdressers often not want to work on plant-dyed hair?Updated 6 months ago

In the past, some vegetable hair dyes still contained colour-enhancing additives which reacted in combination with chemical dyes. The addition of these substances, which are incompatible with other colour- and shape-changing agents, was banned by law in the EU a long time ago. When buying when buying your vegetable hair dyes, make sure that they have an organic seal.

You do not have to fear any interactions with plant hair dyes and chemical colourants if you pay attention to one thing.

If you have coloured with a shade that contains indigo, the hair should not be chemically should not be chemically lightened, as this can lead to permanent discolouration. Exceptions here are the shades: khadi Sun Blonde, Pure Henna and Henna, Amla, Jatropha - these could be chemically lightened.

If you want to chemically lighten your hair to the same depth of colour or darker after using If you want to colour your hair chemically to the same depth of colour or darker, you do not need to do anything else. Let 10 washes of hair.