Don?t expose your hair to harsh chemicals for a long time to get the look you love. Instead use Just5?s 5-minute ammonia free color to cover your gray. Just 5 blends shades of your own color into the gray so invisibly, even you can't tell which hair used to be gray. It also protects and revitalizes your hair with built in conditioners and 5 super rich after conditioners, for brighter shine and an extra boost of body and manageability. It?s so gentle, you can even color your hair a day after you relax or straighten it! It won't wash out, won't fade out or look dull no matter how often you shampoo. It lasts up to 6 weeks, until your gray grows back. Spend just 5 minutes gently coloring your hair for 6 weeks of coverage, with our super-rich MoistureDuo? conditioners to help protect your hair.