Henna powder is a fine, greenish-brown powder made from the leaves of the Lawsonia inermis plant, also known as the henna plant. The leaves are dried and ground into a powder, which is traditionally used for body art (henna tattoos) and hair coloring. When mixed with liquid (often lemon juice, tea, or water), it forms a paste that can be applied to the skin or hair. The paste stains the skin with an orange-brown to reddish-brown color, depending on the quality and freshness of the henna, as well as the application method.