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Noorani Black Henna is a box that contains six packs of dry henna. To use, mix one pack of henna with almost one ounce of hot water for single use and let it set and cool down for a while. It takes about 15 minutes under a dryer for the dye to set on hair. The dye produces a very dark black shade rather than brown. Overall, Noorani Black Henna produces a very dark shade of black on hair and is easy to use; however, some may find mixing the henna with hot water to be a hassle.