Black henna herbal hair color is a natural hair dye made from the henna plant (Lawsonia inermis) and other botanical ingredients. It is commonly used to color hair black, and it is a popular alternative to chemical hair dyes. Henna has been used for centuries as a natural dye for hair, skin, and nails. When used as a hair dye, henna binds to the hair shaft and adds color, shine, and volume. Unlike chemical hair dyes, black henna herbal hair color does not contain harmful ingredients such as ammonia, peroxide.