Cassia obovata may be used alone for deep hair conditioning, or it may be added to henna. Grays will turn orange red with henna. Other hair colours will deepen in colour and will take on mild reddish undertones. If you've used indigo before, you will already know you should not use it alone on grey hair or light colour hair (blondes), bleached or permed hair. Indigo will deepen your henna colour and push it to brown or black, depending how long you leave it in for. If you have never used indigo before, please consider starting with the Renaissance Henna Hair Colour Kit which comes with fuller instructions and information for your first time application.
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