Color your Hair Naturally. At Saba Botanical of USA, we take Pure Indigofera Tinctoria leaves and ground them into powder and triple sift into a fine product, which our consumers can easily mix with henna to create colors as desired. When henna and indigo is combined for hair coloring it can result in natural black, jet black, blue-black, purplish black or dark brown hair. The results may vary, depending upon the process, hair condition, percentage of gray and how do you use your henna and indigo in this process. Henna and Indigo application can be done in either a two-step or one-step process. Use together or separately, either way the results are admirable. We recommend you purchase our very fine quality pure henna; our henna can be found at our Amazon store. Indigo powder for hair is safe, Vegan, nontoxic, natural hair dye/color for men women that are allergic to chemical dyes/colors, healthy for everyone. Excellent gray coverage when mixed with henna. Note: This Product cannot lighten your dark hair as it does not have bleaching agents.