Defined as the most effective and enduring hair coloring solution, "best permanent hair dye" signifies a transformative substance that permanently alters hair's pigment. A prime example is the ammonia-based dye, a revolutionary invention that has dominated the hair dyeing industry since the early 1900s.
Permanent hair dye holds immense relevance due to its ability to provide long-lasting, vibrant colors. It offers benefits like gray coverage, color correction, and the freedom to experiment with various shades. The development of ammonia-based dyes marked a turning point, enabling deeper color penetration and enhanced durability.


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