Paul Mitchell The Color 4N+ Gray Coverage Color Natural Brown 3 Ounce 90 Gram Unique conditioning system delivers vibrant color and creamy consistency. Can be used as a permanent, semi-permanent and demi-permanent color. Low-ammonia hair color offers outstanding vibrancy and provides natural-looking end results. Intensifies neutralizes and enhances natural hair color. And blends or covers gray. Long-lasting color fades on tone. Achieves up to 3 levels of lift for permanent use with 20, 30, and 40 volume developers. Achieves up to 4 levels of lift using Highlift Series. Use with 10 volume developers for semi-permanent results. Use with 5 volume developers for demi-permanent results.