-Henna comes from the Egyptian dyeing shrub Lawsonia inermis (Lythraceae family), also called henna shrub or Cyprus shrub. The plant is native to European and African Mediterranean countries, Madagascar and northern Australia. It is also cultivated in the Orient, mainly in India.

-Henna belongs to the oxidation dyes, it can be used to directly dye proteinaceous fibers (wool and silk) as well as cellulosic fibers (cotton, viscose) without mordant.

-The color shades range from brownish orange to bright red and brown. On wool, you get beautiful bright orange tones, which become a little more brilliant with alum, for example. Henna must always be dyed at relatively high temperatures to produce beautiful bright colors. A dye bath should have between 80 and 90°C, hair is wrapped with a warm cloth during the dyeing process. The light fastness of dyed textiles is between 3 and 4, the wash fastness between 4 and 5.

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