How do you mix henna for your hair?

How do you mix henna for your hair?
Mix henna with enough lemon juice to make a paste as thick as mashed potatoes. Bottled lemon juice will
work just as well as squeezing all those lemons. If your skin is sensitive to lemon and is itchy after using
henna, use orange juice, grapefruit juice, or some liquid less acidic than lemon juice. Vinegar and wine
work, but they’re very stinky! Don’t use yoghurt. It really doesn’t do as well as lemon juice in the long
run, and it’ll give your dandruff something to munch on. Mildly acidic herbal teas with some lemon do just
fine.
Do not mix your henna with coffee. It won’t change the color, and it will smell bad and give you a
headache. A little clove powder may intensify the color, but may also irritate your skin.
Do not add “terps” to the henna paste as you do for body art. You are using far more henna on your hair
than you’d ever use for body art, and the larger amount of terp will give you a headache and may make you
nauseous.