Henna tattoos, also known as Mehndi, is a form of temporary tattoo. Coming from a south Asian tradition, henna uses a paste made from powdered leaves of the henna plant, Lawsonia inermis. Its active dye, Lawsone, binds with keratin in skin, fingernails, and hair.

Traditional henna is drawn in delicate patterns on the hands and feet, but modern henna is applied in all sorts of designs anywhere on the body. Unlike other forms of temporary tattoos, henna does not allow for a full range of colours but only shades of reds, browns, and near-blacks.