You can add a few drops of lemon juice to release the dye. Apply the paste ... alternative to commercial hair dyes. Using ingredients like henna, indigo, coffee, tea, beetroot, carrot juice ...

Before use, mix 1 tbsp of indigo powder and 1 tbsp of lemon juice into the henna paste. Coat your hair evenly, leave the pack for 2–3 hours, then rinse thoroughly with plain water. Avoid shampooing ...