What is the ruling on bleaching eyebrows with "Mish," and does "Mish" prevent water from reaching the skin, and what should be done if that is the case?

It is permissible to use "mesh" (hair highlights) for hair ornamentation, as the default rule regarding women's adornment is permissibility unless there is evidence to the contrary. A group of contemporary scholars, including the esteemed Ibn Uthaymeen, have permitted it, clarifying that it is a dye that does not prevent water from reaching the hair. Therefore, "mesh" does not affect ritual purity (taharah (definition)), because it does not have a solid mass that prevents water from reaching the skin; it is similar to henna.