A powder made from the dried leaves of a shrub, Lawsonia inermis, used for centuries as a hair and skin dye in many cultures.
Used mainly on protein fibres but also effective on premordanted cellulose fibres. Substantive on wool (no mordant required) but mordants may improve lightfast qualities and copper, iron or tin will alter the resulting colours. By itself Henna produces shades of tan through brown to orange-brown or gold can also be achieved.Use at 50% WOF for medium to strong shades.
TO USE: probably best soaked in water overnight. Simmer 1 hour in soaking liquid. Cool, strain then simmer premordanted fibre for 30-60 minutes.
Light and washfastness: we're not sure yet, but probably pretty good.