PRE-WASH:
Pour ready-to-apply Henna paste in a bowl. Use an applicator brush to stir the paste a little. Apply evenly all over hair and scalp. Cover with a hair wrap to prevent drying and staining. After 2-3 hours, wash thoroughly with plain water. Do NOT use shampoo. You may add curd, methi powder or any other ingredient as per choice.
POST-WASH:
Oil your hair overnight wash with shampoo the next day. It takes a day's time for henna to darken on hair, hence advisable to not use shampoo on the day of application.
FOR BLACK HAIR SHADE:
Apply natural Indigo paste day after applying henna. Wash off after 30-45 min. Mixing indigo with Henna will not give a good shade. Always follow this 2-step process for black shade.