For those who enjoy vibrant colors and blending styles, Kiss Express Color is a semi-permanent hair color that is ideal for use after bleaching, enhancing the tone of natural hair color, or blending gray hairs. It also contains no harmful chemicals like ammonia or peroxide. It lasts for around 12+ washes. How to use it: Apply a generous amount of color straight from the bottle to clean, towel-dried hair in sections, leave in for 25mins at room temperature, and rinse as usual. Rinse thoroughly clean hair