Herbal dyes, honey and lemon juice are traditional hair color treatments. Herbal dyes are used to darken hair or add a red or brown tint, while honey and lemon juice act as natural bleaches to lighten hair color.
Henna, indigo, cassia, turmeric and alma are examples of herbal hair dyes. Henna is the most popular of these plant-based dyes and colors hair a brilliant red. Darker henna dyes contain either indigo or chemical dyes in addition to henna. When traditional treatments are necessary, check the list of ingredients on dark henna products to ensure that no synthetic dyes have been added.