I don't think so. I tried it and received wonderful results. The posters on hennaforhair.com think its odd that Rainbow comes in a variety of color, when pure henna is red. This means that there must be additives...but they don't list them. So, this calls into question the 'organic' label on the packaging. I've concluded that it doesn't apply as much to the Rainbow Cassia.
Originally Posted by curlynikki
I think you're righty, Nikki. I'd stay away from the other Rainbow Hennas that say other colors, like burgundy, etc. Other stuff has to be added to get those colors - it could be indigo, but who knows if they don't list all the ingredients? I agree with you about sticking to the "neutral" Rainbow henna, since that should be just cassia. Do they list anything else on the box, Nikki?
spirals, kinks, s-shapes and coils.

http://public.fotki.com/Spiral

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Use only the PURE STUFF