It looks like you've gotten some good responses so far, but I thought I would just give you my 2 cents - LOL!
I would highly recommend doing a stand test before using any henna product. Just collect a handful of hair from your comb, or wherever, just be sure they are your hair, kwim? Depending on how much you shed, it could take a day or two to get enough. Then test the henna on your shedded hairs before putting the mixture on your own head!
I did this the first time I used henna because I had chemically dyed my hair several months before using henna. It was fine and I didn't have any reactions.
The henna I use is from Light Mountain. It is 100% natural. There are only three ingredients: henna, indigo and cassia. Basically the henna gives the red tone, the indigo gives a blue tone, which when it is mixed with the henna becomes varying shades of reddish brown. The cassia is clear or neutral and doesn't give any color at all. I like the fact that it is premixed for me. I have tried the light brown, the chestnut and the medium brown. Lately I have been using one box of the medium brown mixed with one box of the neutral.
If you want a run-down of how I apply it, I will be happy to post it for you - just let me know!
I LOVE henna -it give my hair great shine and strength!
HTH!
BTW - here is a pic of my hair before henna:

Gentle Care for Healthy Hair!
~Kara

(waves from a bee butt bunn)
24.5/40/classic 1aFii 3" pony
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