How to apply henna?
first: it was really hard to get the henna evenly on my head just using my hands. should I use some sort of squeeze bottle or something?
second: how much lemon juice/acidic stuff is good for 450 grams? and how long should it sit?
third: If I do the henna once, then do it again in a week or two, will the color intensify? I have heard rumors about this....