Zenia is a really nice henna with a fine sift for a smooth mix. The way I do a dye release is to mix with warm filtered water to a yogurt consistency. Cover then wrap in a towel and sit near a heat vent or in summer/FL outside out of direct sun. Dye release usually takes about 3 hours. I mix then freeze which actually makes the dye release stronger. On henna day, I remove from the freezer and set in warm water until thawed then mix well. It works every time with a nice strong dye. HTH
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