You will need:
Any color Henna powder:
4 ounces short hair, 6 oz. medium hair, 8 oz. long hair.
3 cups boiling coffee.
1 egg yolk
2 tsp. olive oil

Henna recipe:
1. Place correct amount of henna in large bowl.
2. Pour boiling coffee over henna powder and stir to make a fairly thick smooth paste.
3. Let cool for 10 minutes then add egg yolk and olive oil.
4. Mix well.

Application:
1. Use rubber gloves! Henna will stain clothes and skin.
2. Smear petroleum jelly around hair lines.
3. Dampen hair slightly in sink.
4. Using hands or dye brush from a beauty shop, evenly coat hair with henna paste.
5. Once coated, pile hair on top of head and cover with a shower cap or pastic wrap, then cover with a towel.
6. Allow henna to sit on hair for at least two hours.
7. Rinse thoroughly in sink. If you use the shower the henna dye with run over skin and dye skin.
8. Once henna is completely rinsed from hair, shampoo and condition hair as normal.

Note:
Henna results are intensified in blond hair. Try to lessen the time you have the henna on your hair. Also, henna continues to work after being washed out. The true color results may take a week to show up.

Caution:
Henna can have a reaction with chemical residue causing strange results. It is best to wait at least 3 weeks since your last perm or chemical dye to use henna. If you have used chemical dyes or perms on your hair in the last 6 months, do a small test patch on the underneath of hair where test will be less noticeable. Once you have used henna, you will not be able to cover it up with chemical dyes. The chemical dye will not be able to penetrate properly. If you have used henna and want to go back to chemical dye, you will have to wait for henna to grow out or cut the henna out before you can dye hair with chemicals again.