1N Natural Black, What it is: Time is money—make every minute count with NEW LUMI10™. This professional permanent haircolor is formulated with our Quick Coverage System™ to deliver 100% gray coverage in just 10 minutes while also achieving up to 2X the shine.* Now you can make time for more clients while still expecting the same predictable results from the LumiShine® collection. This fast-acting range of rich and deeply pigmented shades offers long-lasting color, designed to increase your creativity and efficiency with speedy results. Last-minute walk-in with gray hair? No problem. LUMI10 is here to help you and your clients reach your full-coverage poTENtial. *vs. untreated damaged hair.