DIY hair dye refers to the practice of coloring hair at home using various ingredients and methods. Many people choose this option for its cost-effectiveness and the ability to customize colors. Common ingredients include natural dyes like henna or indigo, as well as store-bought kits that provide easy instructions. Using DIY hair dye can be a fun and creative process, but it’s important to conduct a patch test first to avoid allergic reactions. Additionally, results can vary based on hair type and color, so researching techniques and following instructions carefully is essential for achieving the desired outcome.