Mix 100g. HENNA powder in a bowl with 1 cup acidic liquid like orange/lemon juice. Add 1/2 Cup to 1 Cup purified water till it's a yogurt like consistency.
Cover the bowl with a plastic wrap and allow to sit for 12-24 hours until the dye has released. The longer HENNA paste sits and dye is released, the more red the outcome will be.
Add INDIGO and cocoa butter in this HENNA paste then stir in enough very hot water (just below boiling) for the mixture to have the approximate consistency of thick yogurt.
Wait 10-15 minutes, you will see the green powder start to turn a deep purple black on top. When it's black, it's ready. Stir in any essential oils at this point.
Rub petroleum jelly along your hairline, ears, and probably whole neck.
Chiefly a source of dye, indigo also has been used as a nematicide and treatment for a range of ills including scorpion bites and ovarian and stomach cancer.