Indigo is a natural dye that is obtained from the plant Indigofera tinctoria. The powder can be used as a natural and healthier alternative to synthetic/chemical hair dyes and is perfect for people with sensitive skin.
Indigo powder is prepared by grinding the dried leaves of the Indigo plant. The paste should be mixed with water and applied on the hair and left on for 2-3 hours or overnight for a dark black look. Sometimes essential oils are added to give it an extra fragrance.
For best results, Indigo powder should be used after the Henna powder. This would help darken the hair.