Dyeing hair without bleach, also known as "non-bleach hair dyeing," involves altering hair color using dyes that don't require the use of bleaching agents. Unlike traditional hair dyeing methods that utilize bleach to lighten hair for creating vibrant hues, this technique employs dyes that directly deposit color onto the hair shaft, preserving its natural melanin.
Non-bleach hair dyeing is particularly beneficial for individuals seeking subtle color changes, maintaining hair health, and achieving natural-looking results. Historically, natural dyes like henna and indigo were used for hair coloring without bleach, but modern advancements have introduced a wide range of semi-permanent and permanent dyes specifically designed for this purpose.