OVERTONE Royal Plum deposits semi-permanent color in minutes. This color depositing treatment mask provides a less-toxic and easy-to-use way to achieve vibrant hair color. It infuses hair with a rich plum hue, enhancing tone and shine. The vegan and cruelty-free formula deposits color in 10–15 minutes, lasting 2–3 weeks. It's also made with hair-healthy and scalp-purifying ingredients.