Dandasa comes from the outer peel of the walnut tree (Juglans), a species native to temperate regions of Asia and Europe. The peel is deep brown and slightly rough, often gathered after the walnuts are harvested. Traditionally, Dandasa has been used as a natural dye, giving fabrics and crafts rich brown and black colors, and is also included in local self-care routines for skin and hair. This walnut peel is a natural source of tannins, plant compounds that contribute to its color and texture. Dandasas unique qualities have made it a valued part of traditional crafts and daily practices.