Is it permissible for a nineteen-year-old girl to dye her hair with black henna to cover gray hair, knowing that her natural hair color is dark brown?
Henna does not make hair pure black, and if such henna exists, it is not permissible to dye with it due to the general prohibition against dyeing with black.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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