Mixing henna for hair application | HennaWonders You will need: Henna (hair or body art quality) Lemon for acidity but you could use something like orange juice or vinegar Honey or olive oil for adding mois… Related posts: Mixing Henna Paste the easy way! Olive Oil For Hair: My Favorite Hair Oil! *19* Apparently You CAN Dye Over Henna’d Hair.. Natural Hair Growth: Henna Mix